Instruction manual

12
2. INSTALLATION AND ACCEPTANCE
2.1. UNPACKING
Inspect the unit for any possible shipping damage immediately upon receipt. If damage is
evident, notify the carrier. DO NOT return an instrument to the factory without prior
approval. Do not destroy the packing container until the unit has been inspected for damage
in shipment.
2.2. POWER REQUIREMENTS
The AC Power System has been designed to operate from a three-phase AC line voltage.
The input line voltage is supplied to an isolating transformer which has taps to accept 208,
240, 380, 415 and 480 volts.
The power system is normally shipped wired for one of these voltages. Changing to a
different supply voltage may require changing the EMI filter and/or the circuit breaker. See
Table 2-1 below. The numbers below the circuit breaker and the EMI filter are California
Instruments part numbers and may be ordered directly from California Instruments. The
wiring to the system must be capable of carrying the rated current of the circuit breakers.
2.3. MECHANICAL INSTALLATION
The FCS-18-P Power System is a complete self-contained free standing unit. The cooling of
the unit is accomplished by fans drawing air in at the front of the unit and expelling it at the
rear. Both the front and rear of the unit must be kept free of obstructions and a 6" clearance
to the wall or structure must be maintained at the rear of the unit.
2.4. INPUT WIRING (TB1)
The input terminal block is located at the rear of the unit. The AC Power System must be
operated from a three-wire, three-phase service with a fourth wire for ground. Ground or
earth wire is connected to the chassis of the AC Power System. The mains source must have
a current rating greater than or equal to the AC power system circuit breaker and the input
wire must be sized to satisfy the applicable electrical codes.