Beckett RWF40 Instructions - Manual (Page 5)

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Building Technologies CC1N7865en
HVAC Products 01.09.2005
Function
The RWF40... provides the following functions:
- One digital PID controller with a 3-position or analog output (optional)
- To control 2-stage burners, the RWF40... can be switched over to provide 2-
position control
- Automatic thermostat (or pressurestat) function in low-fire operation
- One shift controller for weather-dependent setpoint shifting
- One minimum limiter and one maximum limiter for the boiler temperature or the
boiler pressure
- One limit thermostat to DIN 3440 (output 1)
- One potential-free configurable contact
- Manual operating mode
- Communication via serial port (option)
- Self-setting function
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
Block structure