Extinguishing Control Computer 8010 – 19-Inch
FB 798955.GB0 / 09.07 57
7.5.2 Relay outputs 1 to 8
Free programmable relays for low voltages (max. 30 V DC / 2A).
The relay mode can be configured via a jumper to >positive switching/monitoring< or >dry contact<.
Example with Relay 7 Î dry contact (Relay terminal card type Phoenix)
Terminal card
T2A
27282930
NC
NO
C
GND
Power supply and relay board
dry
contact
moni-
toring
REL 7
F6
Fig. 40: Schematic wiring of the dry contact mode – position of jumpers
Example with Relay 7 Î positive switching/monitoring (Relay terminal card Type Phoenix)
The cable to the external connected device is monitored in this operation mode.
Terminal card
T2A
24V DC
27282930
NC
NO
C
GND
R*
Monitoring
(Current measurement)
Power supply and relay board
Jumper for relay 7 in Pos. „monitoring“
dry
contact
moni-
toring
REL 7
F6
Fig. 41: Schematic wiring of the t "positive switching/monitoring“ mode – position of jumpers