1 current output
Output current ±20 mA
Load <450 ohm
Resolution 20 uA (20/1024 mA)
Accuracy 60 A + 0.5% of
output current
The analogue unit requires separate power supply ±15 V according to one of the following
alternatives:
• Internal ±15 V supply, not galvanically insulated from the electronics in
the control cabinet, only intended for analogue I/O. Internal supply
is available in the unit's connector.
• External supply, galvanically insulated from the electronics in the
control cabinet.
Voltage tolerance , ± 15 %
Connection points for internal and external supply are available in the system.
Reserved I/O:
Reserved I/O:
The following groups of analogue I/O are reserved:
• Analogue arc weld I/O (AW)
• Analogue gluing I/O (GL)
The contents and meaning of the reservations are described below:
Analogue arc weld I/O
Contents: - voltage reference
- current reference
Reserved: 2 outputs
Location: output CHI and CH2
Analogue gluing I/O
Contents: - glue flow reference
- air flow reference
Reserved: 2 outputs
Location: output CHI and CH2
238 AD Combi I/O unit
Digital I/O
• Inputs: 16 opto-connected ,««v
Rated input voltage: 24V DC '
Input current at rated voltage: 5.5mA
• Outputs: 16 opto-connected, short circuit
protected
Rated output voltage: 24V DC
Load capacity per output: 200mA
Load capacity per group of 8 outputs: 1A
Description ERB 2000
46
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