Beckett RWF40 Manual - Manual (Page 13)

HVAC Products CC1B7865en 01.09.2005 13/57
4. Electrical connections
Ω
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/0905
Input 1:
Actual value
for Pt100, Ni100, 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 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 110 ...240 V +10%/-10%,
48...63 Hz, max. 10 VA
4.2 Block diagram