Operation and setting
51
IRDH575_D00089_05_M_XXEN/01.2020
6.4.3
Operating principle of the alarm relays
K1/K2 are factory set to N.O Test, that means N/O operation. When the supple-
ment "Test" has been selected, the alarm relays switch over during a manual
self test.
If, for any reason, the alarm relays may not switch over during a manual self
test, the settings N.C or N.O are to be selected.
K1: N.C Test
= N/C operation contacts 11-12-14, with relay test
(the alarm relay is energized during normal operation)
K1: N.O Test
= N/O operation contacts 11-12-14, with relay test
(the alarm relay is deenergized during normal operation)
K1: N.C
= N/C operation contacts 11-12-14, without relay test
(the alarm relay is energized during normal operation)
K1: N.O
= N/O operation contacts 11-12-14, without relay test
(the alarm relay is deenergized during normal operation)
K1: Flash
= Flashing function contacts 11-12-14
(the alarm relay and the LED flash in the event of an alarm
message, approximately 0.5 Hz
Summary of Contents for ISOMETER IRDH575
Page 112: ...Technical data IRDH575 113 IRDH575_D00089_05_M_XXEN 01 2020 ...
Page 117: ......
Page 118: ......
Page 119: ......
Page 120: ......