CNGmass DCI
Commissioning
Hauser
51
6.4.3
Relay contacts: Normally closed/Normally open
The relay contact can be configured as normally open (NO or make) or normally closed (NC or
break) contacts by means of two jumpers on the I/O board or on the pluggable submodule. This
configuration can be called up at any time with the ACTUAL STATUS RELAY (4740) function.
#
Warning!
Risk of electric shock. Exposed components carry dangerous voltages.
Make sure that the power supply is switched off before you remove the cover of the electronics
compartment.
1.
Switch off power supply.
2.
71.
3.
Set the jumpers (
29).
"
Caution!
– If you change the setting you must always change the positions of
both
jumpers!
Note precisely the specified positions of the jumpers.
– Note that the position of the relay submodule on the I/O board can vary, depending on the
version ordered, and that the terminal assignment in the connection compartment of the
transmitter varies accordingly
19.
4.
Installation of the I/O board is the reverse of the removal procedure.
A0001215
Fig. 29:
Configuring relay contacts (NC / NO) using jumpers on the convertible I/O board (submodule).
1
Configured as NO contact (default, relay 1)
2
Configured as NC contact (default, relay 2, if installed))
INPU
T/O
UTPUT
4
INPU
T/O
UTPU
T 3
+
+
1
2
INPUT/O
UTPU
T 2
