Name Function
1 Process Value (PV) display Displays the process value (PV).
2 Set value (SV) indication lamp Stays on while a set value is on the display.
3 Set value (SV) and Set value (SV) or parameter symbols and codes
parameter display are displayed when setting various parameters.
4 DOWN key Decrements the numerical value in the place
(common for each digit) selected with the UP key. Where various para-
meters are displayed, each parameter is dis-
played one by one every time this key is
pressed. The sequence of displays however, is
opposite to the sequence of displays with the
SEL key.
5 Direct SV key By pressing this key, the set value (SV) is dis-
played.
6 SELECT key The key to be used when switching over to the
1st or 2nd block parameters, or when scrolling
through the parameters within a block.
7 Data display key Displays the data assigned to the parameter
selected with the SEL key
8 Data entry key The key to be used for storing the data after pre-
vious data is changed. (none of changed data
can be registered unless this key is pressed.)
9 UP key for 1’s place By pressing once, the number in the units place
blinks. The number is continuously incremented
with the key held pressed.
10 UP key for 10’s place By pressing once, the number in the tens place
blinks. The number is continuously incremented
with the key held pressed.
11 Up key for 100’s place By pressing once, the number in the hundreds
place blinks. The number is continuously incre-
mented with the key held pressed. A numeric “9”
is followed by “0” and , concurrently, a number of
the thousands place is incremented by 1.
12 Control output indication lamp C (for PXZ4 only): Comes on when the control out-
put is ON.
C1: Comes on when the control output 1 is ON.
C2: Comes on when the control output 2 is ON.
13 Upper limit alarm Comes on when the upper limit alarm is activated.
indication lamp (option)
14 Lower limit alarm Comes on when the lower limit alarm is activated.
indication lamp
15 Heater break alarm Comes on when the heater break alarm is output.
indication lamp
16 Process value (PV)/ set Parameter symbols and codes are displayed
value (SV)/parameter display for process value (PV) and set value (SV) and
(applicable to PXZ4 only) when setting various parameters.
17 Process value (PV) Stays on while process value (PV) is on display.
indication lamp
18 PV/SV SELECT key The display of measured value (PV) and set value
(For PXZ4 only) (SV) is toggled each time this key is pressed.
FRONT PANEL OPERATION
The PXZ controller programming menu consists of two blocks—
PRIMARY (SETPOINT) MENU and SECONDARY (SYSTEM) MENU. At
power up, the controller will be in the operational mode– process
variable (PV), in the case of PXZ4, and both process variable and set-
point variable (SV), in the case of PXZ-5, 7, 9 will be displayed. PV is
the variable that is being controlled, and it is not programmable.
When setting the parameters, turn off the power to the load (operat-
ing equipment) to ensure safety. Since it takes 30 minutes for the unit
to stabilize in terms of temperature, all measurements should be car-
ried out at least 30 minutes after the power is turned on. Option-relat-
ed features are displayed only when the options are provided.
Viewing and Setting Parameters
• After setting the data, press ENT key for registration.
• If the data setting is left as it is for 30 secs, the display is automati-
cally returned to the operational mode.
How to set Setpoint value (SV)
Operation Display
1. Power on – Operational mode
2. Press UP (units, tens or hundreds) – Digit blinks
key to select digit
3. Press the appropriate UP key or – SV value changes
the DOWN key to increment or
decrement digit value
4. Press ENT key – SV value registered
PRIMARY (SETPOINT) MENU
Operation Display
1. Operational mode – PV, SV
2. Press SEL key – “P” displayed
3. Press DATA key – “P” data displayed
4. Press the appropriate UP key – Corresponding digit blinks
once
5. Press the same UP key or the – Data changes accordingly
DOWN key to increment or
decrement the data
6. Press ENT key – Data registered; “i” displayed
7. Press SEL key once to go to – “d” ....... “Mod”
the next parameter, or press
and hold UP (hundreds) key or
DOWN key to scroll down or up
the menu at a faster rate
8. Press SV (SV/PV for PXZ4) key – Operational mode
SECONDARY (SYSTEM) MENU
Operation Display
1. Operational mode – PV, SV
2. Press SEL key for about 3 secs – “P-n1”
3. Press DATA key – “P-n1” data
4. Proceed as described before.
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