9. Technical data
General details
Application area
Operation and
system
construction
Input
Output
(Loop power
supply)
Output (relays)
Accuracy
Unit function
Alarm set point switch with loop power supply. Used
for monitoring either current or voltage signals
Contactor
The unit monitors the input signal and checks if it is
within the preset alarm set points. The two built-in
relays switch if the signal wanders either above or
below the preset alarm set point values. A built-in
loop power supply can be used to power connected
sensors.
Measurement
principle
The analogue signal connected to the input is
digitalised, analysed and shown in the display. When
the preset alarm set point is reached one of the two
relays is independently switched.
Measurement
system
icro-controlled measurement system with LC display,
analogue input, alarm set points and loop power
supply.
Number
1
Type
Voltage and current
Measurement
range
Voltage:
0/2...10 V,
max. voltage 50 V
Ri: 1 MOhm
Current:
0/4...20 mA;
max. current 150 mA
Ri: 5 Ohm
Resolution
Voltage:
41 mV, 8 Bit
Current:
83 µA, 8 Bit
Over range
10%
Integration time 4/s
Output signal
Terminals 81: 24 V +/- 20 %, 30 mA
Number
1
Galvan.
isolation
Between power supply and relay outputs
Output signal
Binary, switches when alarm set point is reached
Number
2
Contact type
1 potential free change over contact per relay
Contact load
<= 250 VAC, 8(2) A / 30 VDC, 5(2) A
Voltage
Accuracy:
1
% FSD
Temperature drift: 0.02 % / K ambient temperature
Current
Accuracy:
1
% FSD
Temperature drift: 0.02 % / K ambient temperature
Contactor
42
