PCD41
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29
The user must take care that, in case of disturbance, the contact
rating of 8 A / 150 VA (W) is not exceeded. The output relay of the in-
strument (1 relay or more) may, in total, switch max. 5 x per minute.
Admissible clicks as per interference suppression standards
EN 61000-6-4 for the industrial sector. In case of higher switching
rate, the user is responsible for and in charge of providing interfe-
rence protection on site in consideration of the load to be switched.
3.3 Assignment of analog input
100
20
display
Analog
value
2
10
without
with
Assign the analog input to contacts 9 (-) and 10 (+).
The display adjustment (scaling) is effected at the front
via the keyboard. The setting with or without offset (2 V,
4 mA) is effected on programming line 26.
Model
Input resistance
0/2...10 V
20 kΩ
0/4...20 mA
250 Ω
3.4 Assignment of control inputs
Contacts 11 and 12 are two control inputs - input logic PNP.
It is possible to choose the function of these control inputs on the
programming lines 31 and 32. The functions are: Hold, Reset, Peak
memory, Programming disable, Keylock, Print and Tare function.
Input resistance
Selectable operating threshold
ca. 3 kΩ
3 V and 6 V
Hold input
Measuring/
Display
value
Hold
signal
measuring
value
t
hold
activ
delay time
maximal
display
t
The function Hold activates the display upon actuation
of the input, with a delay of 0 to 9 seconds, as pro-
grammed in line 39.
After deactivation of the input, the next display of Up-
date will again show the current value. For the models
with relay, the limits P1 and P2 react to the value actu-
ally displayed. For the models with interface, the value
actually displayed is transmitted.
