SIRIUS 3RR2 current monitoring relays
8.8 Operation
SIRIUS Innovations
728 System Manual, 01/2011, A8E56203870002-03
Cable break detected
When a cable break is detected (residual current in branches 1L1/2T1, 3L2/4T2 or 5L3/6T3),
all delay times which are running (onDel, RsDel, Del) are aborted and both the CO contact
and the semiconductor output change their switching state immediately (≤ 200 ms). At the
start of current flow (I > 0) in all branches (1L1/2T1, 3L2/4T2, and 5L3/6T3) the CO contact
and the semiconductor output respond again in accordance with the settings made.
RESET
Display in the event of an error
The symbols on the display flash to indicate an error.
Example function charts can be found in the chapter titled Functions (Page 690).
RESET
The outputs are reset dependent on the set memory behavior.
The following settings can be selected:
● Memory = yes (manual RESET), see the chapter titled Memory (Page 723)
To re
s
et the device you need to press and hold down both arrow keys simultaneously for
more than 2.5 s. The previously occurring error has to have been dealt with, otherwise a
new error message will appear immediately.
Alternatively, the device can be reset by disconnecting and reconnecting the supply
voltage.
● Memory = no (automatic reset)
The device is reset automatically as soon as a previously occurring error has been dealt
with. The set reclosing delay time is taken into consideration.
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