Instruction manual

4
DC Power Supply Precautions
The following precautions should be observed when installing chassis with DC power
supplies.
1.
Check nameplate ratings to assure there is no overloading of supply circuits that
could have an effect on overcurrent protection and supply wiring.
2.
When installing 7 – 50V DC rated equipment, it must be installed only per the
following conditions:
a.
Connect the equipment to a 7 – 50V DC supply source that is electrically
isolated form the alternating current source. The 7 – 50V DC source must
be connected to a 7 – 50V DC SELV source.
b.
The maximum terminal voltage is 50V DC.
c.
Input wiring to terminal block must be routed and secured in such a
manner that it is protected from damage and stress. Do not route wiring
past sharp edges or moving parts.
d.
A readily accessible disconnect device, with a 3mm minimum contact gap,
shall be incorporated in the fixed wiring.
3.
Grounding: reliable grounding of this equipment must be maintained. Particular
attention should be given to supply connections when connecting to power
strips, rather than direct connections to the branch circuit. The Negative
Terminal is common to the grounded case.