Ametek i Series User Manual download pdf (Page 30)

User Manual

16 i Series / iX Series

3.3 Mechanical Installation

The 3001i/iX and 5001i/iX are completely self contained power sources. They may be used free

standing on a bench top or rack mounted using the optional rack mount/handle kit. The units are

fan cooled, drawing air in from the sides and exhausting at the rear. The sides of each unit must

be kept clear of obstruction and a 6” clearance must be maintained to the rear. Special

consideration of overall air flow characteristics and the resultant internal heat rise must be

allowed for with systems installed inside enclosed cabinets to avoid self heating and over

temperature problems.

3.4 Input Wiring – TB1

The input terminal block, TB1, is located at the rear of the unit. Ground (earth) wire must be

connected to the chassis of the AC power system. The mains source must have a current rating

equal to or greater than the input circuit breaker and the input wiring must be sized to satisfy the

applicable electrical codes. The input terminal block cover and strain relief must be installed in

table top applications to maintain protection against hazardous voltages.

CAUTION: Capacitors in the power source may hold a hazardous electrical charge

even if the power source has been disconnected from the mains supply. Allow

capacitors to discharge to a safe voltage before touching exposed pins of mains

supply connectors.

3.5 Output Power Connections – TB2

The output terminal block, TB2, is located at the rear of the unit. The external sense inputs allow

the power system output voltages to be monitored directly at the load and must be connected

either at TB2 or the load when the sense is programmed for external. The external sense input

does not have to be connected when Internal Sense is programmed. The external sense wires

are to be connected to TB3 on the rear panel and should be run as a twisted pair for short

lengths. Sense leads over three (3) feet long should be run as a twisted shielded pair. Refer to

Figures 3-2 through 3-12 for all connections.

Note: The output of the power source is isolated from the input line and floating from

chassis ground. If needed, either side (HI or LO) may be grounded.

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Ametek i Series User Manual Page 30