7
R4 output (230V switch output or voltage-free output):
R4 switch
output 230V:
R4 voltage free
output:
fig.5:
Connection variants for R4 output
To simplify things, the R4 output has
always been displayed as a 230V
switch output in chapter 4.
However, the output - as shown here
- can also be wired as a potential-
free output as required.
Temperature sensors
Warning: Only the original sensors permitted for the regulator may be used. These are Pt1000 type
sensors. The polarity of the sensor contacts is irrelevant when connecting.
The sensor cables can be extended up to a length of around 100m. To do this, use an extension cable
cross section of 1.5mm² up to 100m and 0.75mm² up to 50m.
Radiation sensors
Warning: Only the original radiation sensors permitted
for the regulator may be used. Since these sensors are
active components, correct polarity must be ensured
when connecting.
fig.6: Radiation sensor connection
Pulse generators
If pulse generators are used with a
“reed switch” the connection polarity
is arbitrary. Ensure the correct
polarity, when using an "open
collector" circuit.
fig.7: Volume Flow Meter
All sensor cables are low voltage and must be installed separately from current-carrying power
lines (minimum distance 100 mm) to prevent external inductive interference. If external
inductive interferences, for example by heavy current cables, contact wires, transformer
stations, radio and television sets, amateur radio stations, microwave devices, or similar
devices are to be expected, the cables carrying the measuring signal must be shielded.
The mains can be switched on once the terminal area is closed with the terminal cover and the
corresponding housing screw.
The date and time must appear in the regulator’s LCD display when the mains is switched on.
The date and time will have to be reset if the regulator’s power supply has be disconnected for
a long time.
E1 to
E7
REED- or mech. contact :
E1 to
E7
Open collector:
blue
red
E6 or E7
clamp
