
Operating Instructions Safety System CES-A-UBA-01/CES-A-UBA-01B
11
Safety in case of faults
Ì The operating voltage U
B
is reverse polarity protected.
Ì The connections for the read heads, ERR and OUT are not short circuit-proof.
Ì A short circuit between 13/14 and 23/24 can be detected only by means of
external pulsing.
Ì A short circuit in the cable can be excluded by laying the cable with protection.
Fusing of the power supply and the safety contacts.
Ì Provide external contact fuses (6 A gG fuse or 6 A circuit breaker, characteris-
tic B or C) for relay outputs.
Ì The power supply must be protected with a max. 8 A fuse before terminal U
B
.
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