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Fuji Electric PXE4 - User Manual

Fuji Electric PXE4
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Global Sales Section
Instrumentation & Sensors Planning Dept.
1, Fuji-machi, Hino-city, Tokyo 191-8502, Japan
http://www.fujielectric.com
Phone: +81-42-514-8930 Fax: +81-42-583-8275
http://www.fujielectric.com/products/instruments/
Model : PXE4
Micro Control X
Instruction Manual
INP-TN2PXE4-E
Thank you for your purchasing “Fuji Digital Temperature
Controller.” Please check that the product is exactly the one
you ordered and use it according to the following instructions.
(Please refer to a separate operation manual for details.)
Dealers are cordially requested to ensure the delivery of this
Instruction Manual to hands of the end-users.
Safety Precautions
Before using this product, the user is requested to read the fol-
lowing precautions carefully to ensure the safety. Safety precau-
tions must be taken by every user to prevent accidents.
Failure to comply with the instructions contained in this manual
may reduce the safety of the instrument.
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Operating temperature ±WR>&@
Operating humidity 90%RH or less (Non condensation)
Installation category II
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Pollution degree 2
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creepage and clearance distances shown in the table below are maintained between the
temperature probe and any other assemblies which use or generate a voltage shown in the table
below.
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Voltage used or generated by any assemblies &OHDUDQFHPP &UHHSDJHPP
Up to 50Vrms or Vdc
0.2 1.2
Up to 100Vrms or Vdc
0.2 1.4
Up to 150Vrms or Vdc
0.5 
Up to 300Vrms or Vdc
1.5 3.0
Above 300Vrms or Vdc &RQWDFWZLWKRXUVDOHVRIILFH
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between all terminals of this controller and the ground, and supplementary insulation is required for
the alarm output.
Isolation class of this controller is as shown below. Be sure to check that the isolation class of the
controller satisfies your requirements before installation.
Basic insulation (1500V AC) Functional insulation (500V AC) Non-insulation
Power source
Measured value input
Internal circuit
Contact output 1(relay contact)
Alarm output 1 (relay contact) or
contact output 2 (relay contact)
Alarm output 1 (relay contact) or
contact output 2 (relay contact)
Alarm output 2 (relay contact) Alarm output 2 (relay contact)
Control output 1 (SSR drive)
When the 9th code is "J" Alarm
output 1 and 2: independent common
When the 9th code is other than "J"
Alarm output 1 to 2: shared common
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Make wiring so that the fuse is placed between the main power supply switch and this controller.
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completed.
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ON.
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malfunction.
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shock, malfunction, and fault.
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controller have a limited life span, or they will be deterio-rated with the lapse of time.
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properly used.
Avoid the following places for installation.
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operation.
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operation.
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emitted.
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(Vibration or shock may cause output relay malfunction.)
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(if immersed with water, take the inspection by sales office to avoid an electr-ical leakage and firing)
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panel. If there are some gaps, tighten two screws until the gaps are eliminated. (Do not tighten the
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waterproofness between the instrument and the panel, use packings that are provided as
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As shown in Figure 1, fit a packing to the case of the unit and then insert it in the panel.
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shown in Fig.3.
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water resistance.
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For the RTD type, use a wiring material with a small lead wire resistance and no resistance
differentials among three wires.
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other.
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transformer and the use of a noise filter are recommended.
Make sure that the noise filter is installed to a place such as a panel that is properly grounded. The
wiring between the noise filter output terminal and the instrument power supply terminal should be
made as short as possible. None of fuses or switches should be installed to the wiring on the noise
filter output side because the filter effect will be degraded by such a installation.
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SSR drive output type is preferred if the output operations occur frequently.
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665RQHVHFRQGRUPRUH
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use serge absorber to protect a contact from switching serge and keep a longer life.
Recommended spec · of serge absorber
Varistor voltage
Voltage 100V
200V
240V
470V
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1.1 Installation and wiring
2.1 Cautions on installation
2.2 Caution on installation on panel
1.2 Maintenance precautions
2.3 Precautions in wiring connection
2.4 Requirement for key operation/operation in abnormalities
2.5 Others
1
Example)
7
2 8
3 9
4
10
5
11
6
12
Serge absorber.
connection
Warning
Suggesting that the user’s mishandling can result in
personal death or serious injury.
Caution
Suggesting that the user’s mishandling can result in
personal injury or damage to the property.
1. Warning
2. Caution
Front
Screw
Packing
Figure 1 Figure 2
Figure 3
Panel
Unit
Panel
Screw
Mounting
bracket
Mounting
bracket
Packing
Packing
Case
Case
(Bad) (Good)
Outline dimensions
Panel cut
Input signal, measurement range, and set value at the time of deliver are as follows.
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Input signal of the thermocouple and the resistance bulb can be switched by key
operation on the front panel.
Temperature controller ....1 unit
Instruction manual ...........1 copy
Mounting bracket .........1 pcs
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0RGHO&RGH&RQ¿JXUDWLRQ 3. Outline and Panel Cutout Dimensions 5. Name of Functional Parts and Functions
2. Scope of Delivery
PV
SV
OUT1 OUT2/AL1 AL2
STBY
STBY
AT
1
2.6 60.9
44.8
57
t
1 t 8
Water-proof
packing
Panel
panel thicknesst
Mounting frame
48
48
45
(48×n-3)
0
+0.5
0
45
+0.5
+0.5
0
73MIN.
0
+0.5
63MIN.
45
When units installed side by side (n units)
Note) this dimensions is
including paint thickness
NEMA 4X/IP66 (front water-proof) is
not available, since packing can not
be used when unit installed side by
side.
Note) Panel coating procedure must be taken into account, for the panel cutout
dimension should still conform with the dimensions listed.
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(Installation of fan is recommended as a heat release measure)
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an instrument of more than 70mm depth or a wall on the right side of the
controller.
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Three-year warranty does not cover in case of side by side installation.
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7HUPLQDOVDWWKHOHIWKDQGVLGHIURP1RWRVKRXOGEHXVHGILUVW
&ULPS WHUPLQDOVZLWKPDWFKLQJVFUHZVL]HVKRXOGEHXVHG7LJKWHQLQJ
WRUTXHYDOXHVKRXOGEHDSSUR[1āP
'RQRWFRQQHFWDQ\WKLQJWRWKHWHUPLQDOVWKDWDUHQRWXVHG'RQRWXVHDV
relay terminal)
4. Terminal Connection Diagram
&RPPRQ
5HOD\RXWSXW
7KHUPRFRXSOH
5HVLVWDQFHEXOE
A
B
B
$ODUPRXWSXW$/
RU
&RQWURORXWSXW287
$ODUPRXWSXW$/
WR9$&
+] 1RWH
665GULYHRXWSXW
&RQWURORXWSXW287
Alarmoutput
1RWH&KHFNWKHSRZHUVXSSO\YROWDJH
EHIRUHLQVWDOODWLRQ
1RWH:KHQXVLQJWKHFRQWUROOHUIRU
GXDOFRQWUROKHDWLQJFRROLQJ
WKHDODUPRXWSXWIXQFWLRQVDV
WKHFRQWURORXWSXW
3RZHUVXSSO\
0HDVXUHGYDOXHLQSXW
$ODUPRXWSXW$/
RU
&RQWURORXWSXW287
$ODUPRXWSXW$/
RU
&RQWURORXWSXW287
&RPPRQ
$ODUPRXWSXWLQGHSHQGHQWFRPPRQ
$ODUPRXWSXW$/
$ODUPRXWSXW$/
&RPPRQ
1RWH
1RWH
PV
SV
OUT1 OUT2/AL1 AL2
STBY
STBY
AT
S1
S2
S3
S4
S5
S6
Point
:KDWLVDODUPZLWKKROG"
The alarm is not turned ON immediately even when the process value
is in the alarm band. It turns ON when it goes out the alarm band and
enters again.
1RWH:KHQ DODUP DFWLRQ W\SH FRGH LV FKDQJHG DODUP VHW YDOXH PD\
also become different from previous settings.
Please check these parameters, turn off the power once, and
then re-start the controller, before starting control.
$/QPHDQVDODUPVHWYDOXH$/$/
6. Operation Flow Diagram 7. List of Alarm Type
Ch 3.is displayed
Ch 1.is displayed Ch 2.is displayed
Type of alarm 1Input type settingProportionalband
Process value (PV)/
Setting value (SV)
Type of alarm 2PV offsetIntegraltimeStandby setting
DerivativetimeAuto-tuning
Loop break
detection time
Hysteresisfor
On/OFFcontrol
Output
convergencevalue
Controlmethod
Cycletime
(controloutput1)
Cycletime
(controloutput2)
SettingofNormal
/Reverseaction
Alarm 1 set value
Loop break
detection band
Alarm 2 set value
Switchover of
parameter display
Key lock
*1
These parameters are not displayed
when shipping.
It can be displayed by other parameter
setting.
*2
Display ON/OFF is switched by other
parameter setting.
Power is ON
100
 26
[Operation Ch.] [Channel 1] [Channel 2] [Channel 3]
ST
O
OF
AT

A

AL

L

P
5
Ch
i
2
d
6
H

P
K1
SEL key
P

SEL key
key
AM1

SEL key
AM2

SEL key
L

SEL key
LAb

SEL key
dSPC
0PE
SEL key
Ch
SEL key
Ch
SEL key
key
key
key
C
onoF
TC2

rEv
rEv
bAL

SEL key
SEL key
SEL key
SEL key
SEL key
SEL key
SEL key
SEL key
SEL key
Coolingproportional
bandcoefficient
CooL

SEL key
Deadband(%)
db

SEL key
SEL key
SEL key
SEL key
SEL key
T

SEL key
SEL key
SEL key
Lower limit alarm
(with hold)
Power OFF
Power
ON
Power
ON
off
off
on on
on
off
offoff
PV (process value)
Period where lower
limit alarm is output
Lower limit alarm
8. List of Setting Parameter
9. Error Indications
Input signal type
Setting
value
Range
>&@
57',(&
JPt100
JPT1 ± WR  >&@
JPT2 ± WR  >&@
Pt100
PT1 ± WR  >&@
PT2 ± WR  >&@
Thermocouple
J
J1  WR  >&@
J2  WR  >&@
.
.  WR  >&@
. ± WR  >&@
.  WR  >&@
T
T1 ± WR  >&@
T2 ± WR  >&@
RR  WR  >&@
BB  WR  >&@
SS  WR  >&@
( ( ± WR  >&@
NN  WR  >&@
3/ 3/  WR  >&@
RISURFHVVYDOXHRU&ZKLFKHYHULVJUHDWHUGLJLW&
7KHUPRFRXSOH&RUOHVVRISURFHVVYDOXHGLJLW&
&RUUHFWLQGLFDWLRQLVQRWHQVXUHG ZLWKLQ DUDQJHIURPWR&IRU 5 W\SHWKHUPRFRXSOHDQG
IURPWR&IRU%W\SHWKHUPRFRXSOH
Operation parameter
Parameter
display symbol
Parameter Description of contents Default setting Note
1 í 3969GLVSOD\ Process value and setting value -
2
Standby settings &KDQJHRYHUEHWZHHQ581DQG6WDQGE\
2QFRQWUROVWDQGE\FRQWURORXWSXWDQGDODUPRXWSXW2))
R))FRQWURO581FRQWURORXWSXWDQGDODUPRXWSXW21
OFF
3
Auto-tuning 6WDUWVWRSRIDXWRWXQLQJ
R))VWRS
RQQRUPDODXWRWXQLQJ
/RQORZ39DXWRWXQLQJ
OFF a
4
Alarm 1 set value
Trigger point for the alarm 1. Used to configure the alarm 1 in combination
with the "Alarm type". Setting is available within the input range.
2.5% of range i, e
5
Alarm 2 set value
Trigger point for the alarm 2. Used to configure the alarm 2 in combination
with the "Alarm type". Setting is available within the input range.
2.5% of range b, e
.H\ORFN Restriction on parameter change
2))DOOSDUDPHWHUVFDQEHFKDQJHG
$//DOOSDUDPHWHUVDUHORFNHG&KDQJHRYHUEHWZHHQ$7DQG
VWDQGE\E\XVLQJWKHEORFNNH\DQGWKHXSGRZQNH\LVDOVRLQYDOLG
3$U$RQO\69FDQEHFKDQJHG&KDQJHRYHUEHWZHHQ$7DQG
VWDQGE\E\XVLQJWKHEORFNNH\DQGWKHXSGRZQNH\LVDOVRLQYDOLG
OFF
&KDQQHOSDUDPHWHU
Parameter
display symbol
Parameter Description of contents Default setting Note
7
Proportional band 6HWWLQJUDQJHWR 5.0% a
Integral time 6HWWLQJUDQJHWRVHFRQGV 240 seconds a
9
Derivative time 6HWWLQJUDQJHWRVHFRQGV VHFRQGV a
10 Hysteresis for
212))FRQWURO
6HWWLQJUDQJHWR)6 2.5% of range c
11
&RROLQJSURSRUWLRQDO
band coefficient
6HWWLQJUDQJHWR 1.0 M
12
Dead band
Offset of the cooling proportional band against the set value
6HWWLQJUDQJHWR
0.0% k
13
Output
convergence value
Offset added to the MV output
6HWWLQJUDQJHWR
0.0% a
14
&RQWUROPHWKRG RQR)212))FRQWURO
3LGQRUPDO3,'FRQWURO
)8=<IX]]\FRQWURO
)U(GHJUHHV3,'FRQWURO
onoF
15
OUT 1 proportional
control cycle
6HWWLQJUDQJHWRVHFRQGV
5HOD\V
665V
a

OUT 2 proportional
control cycle
6HWWLQJUDQJHWRVHFRQGV 30 seconds M
17 1RUPDOUHYHUVH
action
Define the control action.
UHY6UHYHUVHDFWLRQVLQJOHFRQWURO
QR0/QRUPDODFWLRQVLQJOHFRQWURO
UYQRUHYHUVHRQKHDWLQJVLGHQRUPDORQFRROLQJVLGHGXDO
control)
revS
This controller has a display function to indicate several types of error code shown below.
If any of the error codes is displayed, please eliminate the cause of error immediately.
After the cause is eliminated, turn off the power once, and then re-start the controller.
(UURUFRGH Possible cause &RQWURORXWSXW
Thermocouple burnt out.
RTD (A) line burnt out.
39YDOXHH[FHHGV368E\)6
OFF
7KH57'OLQH%RU&EXUQWRXW
7KH57'OLQHEHWZHHQ$DQG%RU$DQG&VKRUW
39YDOXHLVEHORZ36/E\)6
PV value < –199.9
1RWH,QFDVHRI57'LQSXW³////´LVQRWGLVSOD\HGHYHQLIWKH
WHPSHUDWXUHEHFRPHVEHORZ±&
&RQWUROLVFRQWLQXHGXQWLOWKHYDOXHUHDFKHV±
FS or less, after turn OFF.
(SV indication flickers)
,QFRUUHFWUDQJHVHWWLQJ3YE3Y) OFF
&KDQQHOSDUDPHWHU
Parameter
display symbol
Parameter Description of contents Default setting Note

Input type
Input type . h
19
PV offset 6HWWLQJUDQJHWR)6 0.00% of range
&KDQQHOSDUDPHWHU
Parameter
display symbol
Parameter Description of contents Default setting Note
20
Alarm type 1 $ODUPDFWLRQRIWKHDODUP6HWWLQJUDQJHWR 5g,l
21
Alarm type 2 $ODUPDFWLRQRIWKHDODUP6HWWLQJUDQJHWR
DODUP
DODUPV
g
22 Open loop
detection time
Time until the loop is assumed to be open.
6HWWLQJUDQJHWRVHFRQGV
0 seconds d
23
Open loop
detection band
Temperature range by which the loop is assumed to be open.
6HWWLQJUDQJHWR)6
2.50% of range d
24
&KDQJHRYHU
of parameter
display
A set of parameters to be displayed on the controller. Refer to the
operation manual for the detail.
R3(RSHUDWRUOHYHO
(1*HQJLQHHUOHYHO
R3(
(The controller
always starts in
R3(
f
1RWH D $SSHDUVZKHQWKHFRQWUROPHWKRG&7U/LV3,')8=<RU)(5
E 'RHVQRWDSSHDUZKHQWKHDODUPW\SH$/0LV
F $SSHDUVZKHQWKHFRQWUROPHWKRG&7U/LVRQR)
G $SSHDUVZKHQWKHDODUPW\SH$/0DQGRUWKHDODUPW\SH$/0LVVHWWRORRSEUHDNDODUP
H 6HWWLQJUDQJHWR)6DEVROXWHYDOXHDODUP±WR)6GHYLDWLRQDODUP
f Returns to the operator level every time the power is turned off.
J 5HIHUWR/LVWRIDODUPW\SH
h Refer to "10. Measuring input signal".
L 'RHVQRWDSSHDUZKHQWKHDODUPW\SH$/0LV³´RUWKHQRUPDOUHYHUVHDFWLRQU(YLVUYQRGXDOFRQWURO
M $SSHDUVZKHQWKHQRUPDOUHYHUVHDFWLRQU(YLVUYQRGXDOFRQWURODQGWKHFRQWUROPHWKRG&7U/LV3,')8=<RU)(5
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3UHVHUYDWLRQWHPSHUDWXUH ±WR 90%RH or less
Operating ambient temperature
–10 to 50 90%RH or less (1year warranty if used under normal conditions)
–10 to 40 90%RH or less (when under 3-year warranty)
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10. Measuring Input Signal
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may result in a malfunction, electric shock, or a fire.
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safety, use a protective circuit outside.
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in a failure in the proper output of an alarm in case of an abnormality.
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when a sensor is replaced.
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detergent for wiping the controller.
Operation section
Name Function
Process value (PV)
Displays a process value (PV) or
the parameter symbols.
Setting value (SV)
Displays a set value (SV) or
a parameter set value.
SV lamp /DPSLVOLWZKHQDVHWYDOXHLVGLVSOD\HGDWORZHUOLQH
&RQWURORXWSXW287ODPS /DPSOLJKWVXSGXULQJWKHFRQWURORXWSXWLV21
$ODUPRXWSXW$/ODPS
or
&RQWURORXWSXW287ODPS
(note 2)
(DFKODPSOLJKWVXSGXULQJWKHFRUUHVSRQGLQJRXWSXWLV
ON.
Alarm 2 lamp /DPS2))ZKLOHDODUPLV2))
Auto-tuning lamp
/DPSLVEULQNGXULQJDXWRWXQLQJ
/DPSLV2))ZKLOHFRQWUROLVEHLQJRSHUDWHG1RWH
Standby lamp
/DPSLVOLWZKLOHFRQWUROLVVWDQGE\RUVWRS
/DPSLV2))ZKLOHFRQWUROLVEHLQJRSHUDWHG
Note1) Alarm 2 function is optional
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as the control output 2.
Before using this product, the user is requested to read the fol-
lowing precautions carefully to ensure the safety. Safety precau-
tions must be taken by every user to prevent accidents.
Failure to comply with the instructions contained in this manual
may reduce the safety of the instrument.
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Specification
45678
PXE
4
5
6
7
8
9
10
4
4T Y Y000 E2
-
T
A
C
Y
2
1
2
J
Y
<Front dimensions>
48 X 48mm
<Input signal>
Thermocouple · Resistancabulb (°C)
<Control output>
Relay contact output
SSR driving output
<Revision code>
<Optional specifications>
Alarm (1 pc.)
Alarm (2 pc.)
Alarm (independent common)
<
Power supply voltage, Instruction manual
>
100 to 240V AC, Japanese/English/Chinese
9
-
1410 11 12 13
Digit Note
*1: When using the controller for dual control (heating/cooling), the alarm output 1 functions as the control output 2.
*1
Function
S1
Switches parameter block
S2
Switches the parameters
S3
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numerical value
S4
&KDQJHVWKHVHWWLQJYDOXHDQGGHFUHDVHV
numerical value
S5
6ZLWFKHV5816WDQGE\ZLWKKROGLQJGRZQ
for 3 seconds
S6
([HFXWHVWKHDXWRWXQLQJ6WDUW6WRSZLWKKROGLQJ
down for 3 seconds
Type $ODUPʋ Alarm type Action diagram
0 No alarm
PV
Absolute
value
alarm
1 Upper limit
PV
ALn
2 /RZHUOLPLW
ALn
PV
3
Upper limit
(with hold)
ALn
PV
4
/RZHUOLPLW
(with hold)
ALn
PV
Deviation
alarm
5 Upper limit
PV
SV
ALn
/RZHUOLPLW
PV
SV
ALn
7 8SSHU/RZHUOLPLW
PV
ALn
SV
ALn
Upper limit
(with hold)
PV
SV
ALn
9
/RZHUOLPLW
(with hold)
PV
SV
ALn
10
8SSHU/RZHUOLPLW
(with hold)
PV
ALn
SV
ALn
Zone
alarm
11 8SSHU/RZHUOLPLW
PV
SV
ALn ALn
Break 12 /RRSEUHDNDODUP
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Overview

This document describes the Instruction Manual for the Fuji Electric Micro Control X Model: PXE4, a sophisticated process controller designed for precise temperature and process control applications. The manual provides comprehensive guidance on the device's functions, operational procedures, safety precautions, installation, wiring, and troubleshooting.

Function Description

The PXE4 Micro Control X is a versatile process controller capable of handling a wide range of control tasks. Its primary function is to accurately measure and control process variables, typically temperature, using various input signals such as thermocouples and RTDs. The controller employs advanced control algorithms, including PID (Proportional-Integral-Derivative) control, to maintain the process variable at a desired setpoint.

The device features multiple control outputs, including relay contacts and SSR (Solid State Relay) drive outputs, allowing it to interface with different types of actuators and heating/cooling elements. It supports both single-output and dual-output control, making it suitable for applications requiring heating, cooling, or a combination of both. The controller can be configured for various control actions, such as direct action (for cooling) and reverse action (for heating).

A key feature of the PXE4 is its auto-tuning capability, which automatically calculates and sets optimal PID parameters for a given process, simplifying setup and ensuring stable control. The controller also includes a standby function, allowing the user to temporarily halt control operations without losing the setpoint or configuration.

Alarm functions are integral to the PXE4, providing critical alerts when the process variable deviates from predefined limits. It supports various alarm types, including upper limit, lower limit, upper/lower limit, and loop break alarms. These alarms can be configured with or without hold functions, offering flexibility in how alerts are managed. The controller's display provides clear indications of alarm status, and alarm outputs can be used to trigger external warning devices.

The PXE4 also incorporates a "loop break detection" feature, which monitors the control loop for abnormal conditions, such as a heater failure, and triggers an alarm if a problem is detected. This enhances process safety and reliability.

The device's operation is facilitated by a user-friendly interface with a digital display that shows the process value (PV), setpoint value (SV), and other relevant parameters. Navigation and parameter setting are performed using front-panel buttons, allowing for easy adjustment of control parameters and alarm settings.

Usage Features

The PXE4 is designed for ease of use and flexibility in various industrial and commercial settings. Its compact dimensions and panel-mount design make it suitable for integration into control panels. The water-proof packing ensures durability in environments where moisture may be present.

Installation is straightforward, with clear instructions provided for both panel mounting and wiring. The controller supports a wide range of power supply voltages, making it adaptable to different electrical systems. The terminal block connections are designed for secure and reliable wiring.

The model code configuration allows users to select specific features and options at the time of purchase, tailoring the controller to their exact application needs. This includes choices for input signals, control outputs, and optional specifications like additional alarms.

Parameter setting is intuitive, with a structured menu system that allows users to access and modify various control, alarm, and display parameters. The manual provides a detailed list of setting parameters, along with their descriptions and default settings, guiding users through the configuration process. The ability to restrict parameter changes via a key lock function adds a layer of security, preventing unauthorized modifications.

The controller's display can be configured to show different information, such as process value, setpoint value, and alarm status, providing operators with essential real-time data. The standby function is particularly useful for temporary process interruptions, allowing for a smooth restart without reconfiguring the controller.

The PXE4's robust design and adherence to international standards ensure reliable performance in demanding environments. The comprehensive safety precautions outlined in the manual emphasize the importance of proper installation and operation to prevent accidents and ensure the longevity of the device.

Maintenance Features

The PXE4 is designed for long-term reliability and minimal maintenance. However, regular checks and adherence to recommended practices are crucial for optimal performance and extended lifespan.

The manual highlights the importance of proper installation, including ensuring adequate clearance around the controller for heat dissipation and preventing exposure to corrosive gases, dust, or direct sunlight. These measures contribute significantly to the device's durability and reduce the likelihood of malfunctions.

In the event of an error or malfunction, the controller provides error codes on its display, which help in diagnosing the problem. The manual includes a troubleshooting guide that lists common error codes, their possible causes, and recommended corrective actions. This allows users to quickly identify and resolve issues, minimizing downtime. For example, error codes can indicate problems with thermocouples, RTDs, or internal circuit failures.

The design of the PXE4 facilitates easy replacement if necessary. The panel-mount design allows for straightforward removal and installation of the unit. The modular nature of some components, though not explicitly detailed for user-level maintenance, suggests a design that supports efficient servicing by qualified personnel.

The manual also emphasizes the importance of using appropriate wiring and ensuring secure connections to prevent electrical issues. Regular inspection of wiring for damage or loose connections can help prevent intermittent faults and ensure consistent performance.

While the PXE4 is built for durability, adhering to the specified operating environment conditions, such as temperature and humidity ranges, is vital for its long-term health. Avoiding exposure to excessive vibration or shock also contributes to its longevity.

For more complex issues or when an error cannot be resolved using the troubleshooting guide, the manual directs users to contact Fuji Electric Co., Ltd. for support, ensuring that expert assistance is available when needed. The availability of an operation manual for download from Fuji's homepage further supports users in maintaining and operating the device effectively.

Fuji Electric PXE4 Specifications

General IconGeneral
ModelPXE4
MountingPanel Mount
Input TypeThermocouple, RTD
Output TypeCurrent
Control MethodPID control, ON/OFF control
Display TypeLED
Power Supply100 to 240 VAC
CommunicationRS-485
Alarm Output2 Points
Dimensions48x96mm (1/16 DIN)

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