POWER CONNECTIONS
The OCM-3 power supply accepts 100, 115, 200 or 230 V ac per switch SW1
(board B) selection and 9 to 30 V dc.
The OCM-3 operates either under ac or dc power, or both ac and dc live
simultaneously. If both ac and dc power are live, the OCM-3 normally draws power
from the ac supply. In the event that the ac supply fails, the OCM-3 then draws power
from the dc supply.
The equipment must be protected by a 15 A fuse or
circuit breaker in the building installation.
A circuit breaker or switch in the building installation, marked
as the disconnect switch, shall be in close proximity to
the equipment and within easy reach of the operator.
9 to 30 Volt
dc input
negative dc input (TB1-24) is
tied to ground (TB1-34)
DC POWER
dc terminals shall be supplied from SELV source in accordance
with IEC 1010-1 Annex H.
100/115/200/230 V ac, 50/60 Hz,
select voltage via switch on board B
AC POWER
* switch shown in
‘OFF’ position,
select appropriate
voltage.
*
19 OCM III 7ML19985AB01
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