HVAC Products CC1B7865en 05.12.2002 13/57
4. Electrical connections
W
3 analog inputs
2 binary inputs
Power supply
Serial port (optional)
Release of burner
Floating output
Limit comparator
Analog output (optional)
Power supply measuring transducer
RWF40...
7865f01e/1202
Input 1:
Actual value
for Pt100, Ni100,
Landis & Staefa Pt1000,
LG-Ni1000,
thermocouples
or standard signals
Input 2:
External setpoint,
setpoint shifting
for 0...1 k resistor
or linearized
standard signals
Input 3:
Outside temperature
for Landis & Staefa Pt1000,
LG-Ni1000
For potential-free
contacts
Input 1:
Operating mode changeover
Input 2:
Setpoint shifting /
changeover
Output 1:
- Relay (N.O. contact)
Output 2:
-Relay (actuating device open)
Output 3:
- Relay (actuating device closed)
Output 4:
- Relay (N.O. contact)
DC 24 V, 30 mA
(short-circuit proof)
Output 5:
Analog output
DC 0...10 V, DC 0...20 mA,
DC 4...20 mA
RS-485
MOD bus protocol
AC 100 ...240 V,
±10 %, 48...63 Hz
4.2 Block diagram
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