14
Functions and features
Power supply stations
4.4
Protection circuit
The outputs are protected against short-circuit and overload by a protection circuit (circuit breaker) which
operates in the same way as a fuse.
If the protection circuit intervenes, the power supply station will signal the fault and protect the interrupted
line before making three attempts to re-activate it.
• If the fault condition (overload) clears, the output channel voltage will restore to 24V (ON).
• If the fault condition is still present after the third attempt, the power supply station will leave the
output at 0V (ALERT).
The three attempts to re-activate the line will be carried out at 2, 5 and 10 seconds from the start of the
fault.
In the event of a fault, follow the procedure described in
paragraph 11.2 “Output protection” fault
.
Figure 5 - OUT1 channel protected by fuse
Note:
The protection circuit will continue to operate even when the PROG jumper is inserted.
OUT 1 OU T2 O UT 3
Содержание SmartLevel SPS24060G
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