ero electronic LFS - Page 34

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GB
C) LINEAR INPUTS
Read-out: keyboard programmable between -1999
and +4000.
Decimal point: programmable in any position
Burn out: the instrument shows the burn out
condition as an underrange condition for 4-20 mA,
1-5 V and 2-10 V input types.
It shows the burn out condition as an underrange
or an overrange condition (selectable by soldering
jumper) for 0-60 mV and 12-60 mV input types. No
indication are available for 0-20 mA, 0-5 V and 0-
10 V input types.
D) FEEDBACK POTENTIOMETER INPUT
Potentiometer: from 100 Ω to 1 kΩ.
E) LOGIC INPUTS
This instrument is provided of 2 opto-isolated logic
inputs. The logic input1 is used to select the
operative set point.
The logic input 2 function is used to select the
AUTO/MANUAL mode.
NOTES
1) The "serial comunication" and the "logic input"
options are mutually exclusive and can be
selected by a jumper setting.
2) Use an external contact with a contact rating
better than 0.5 mA, 5 V DC.
3) The instrument needs 100 ms to recognize a
contact status variation.
4) The logic inputs are isolated by the measuring
input.
SET POINTS
This instrument allows to use 2 set points: SP, SP2.
The set point selection is possible only by logic
inputs 1.
Set point transfer:
The transfer between one set point to another (or
between two different set point values) may be
realized by a step transfer or by a ramp with two
different programmable rate of change (ramp up
and ramp down).
Slope value: 1 - 100 eng. unit/min or step.
Set points limiter: RLO and RHI parameters, pro-
grammable.
13
14
15
16
17
18
19
20
0 - 60 mV
12 - 60 mV
0 - 20 mA
4 - 20 mA
0 - 5 V
1 - 5 V
0 - 10 V
2 - 10 V
impedance
> 1 MΩ
< 5 Ω
> 400 kΩ
> 400 kΩ
Accuracy
0.2 % + 1 digit
@ 25°C
Input type
T/C
type
L
L
J
J
K
K
T
N
R
S
B
Ranges
0
1
2
3
4
5
6
7
8
9
10
0/ +400.0°C
0 / + 900°C
-100.0/ +400.0°C
-100/ + 1000°C
-100.0/ +400.0°C
-100/ + 1370°C
-199.9/ +400.0°C
-100/ + 1400°C
0 / + 1760°C
0 / + 1760°C
0 / +1820 °C
21
22
23
24
25
26
27
28
---
0 / + 1650 °F
---
-150/ + 1830 °F
---
-150/ + 2500 °F
-330/ + 750 °F
-150/ + 2550 °F
0 / + 3200 °F
0 / + 3200 °F
0 / + 3310 °F
LFS-servo-1-02.p65 1/14/02, 3:44 PM31