Eaton MTL 9493-PS-XXX, Инструкция по эксплуатации

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5 INM 9493-PS-XXX rev 1
Finishing
Wire up individual power supplies in accordance with wiring schedules. Daisy-chain power supply
connections between individual power plugs or use the power bus (see section 4.1).
Segregate hazardous- and safe-area wiring into separate trunking or looms wherever possible to
avoid errors and maintain a tidy installation.
3 .2 .3 Ambient temperature considerations
Ambient temperature limits for unenclosed power supplies are from -40°C to +70°C with units close-
packed.
3 .3 Power bus - Installation and use
A PB-8T power bus kit enables power supply terminals (13 and 14) of up to 8 installed MTL 9493-PS-
XXX power supplies to be linked to a standard 24V power supply. The bus consists of a chain of
power plugs and different lengths are available to suit various numbers of modules as follows.
1. Check to make sure the bus length is correct for the number of modules involved.
2. If the number of modules is less than the maximum number the chain will support,
cut off the surplus power plugs at the tail end of the chain - leaving sufficient cable to
attach further power plugs if it becomes necessary later.
3. Insert power plugs into the power terminals on the safe- area side of each module in
sequence.
4. Connect the power supply source to the tail end of the chain (using the insulation
displacement connectors [Scotchloks] provided if required).
Notes:
1. To avoid excessive voltage drop or over-current, DO NOT connect power buses in series.
2. Surplus sections can be used (and, if required) connected together provided the cut
ends are safely terminated and/or connected together. Use single ferrules with a crimp tool
or insulation displacement connectors (Scotchloks). Suitable ferrules and connectors are
provided with the kits.
– +
Optional insulation
displacement
connectors
x2
Figure 3 .3
Power bus
wiring, joining
and terminating