CPI Indico 100 Series Service And Installation Manual page 84

2
Installation
2.18.1 Initial Voltage Measurements (Cont)
WARNING: 1. USE EXTREME CARE IN MEASURING THESE VOLTAGES. ACCIDENTAL CONTACT
WITH MAINS VOLTAGES MAY CAUSE SERIOUS INJURY OR DEATH.
2. MAINS VOLTAGE WILL BE PRESENT INSIDE THE GENERATOR CABINET, EVEN WITH
THE CONSOLE SWITCHED OFF.
3. THE BUS CAPACITORS, LOCATED ON THE POWER INPUT BOARD OR ON THE BUS
CAPACITOR ASSEMBLY (SINGLE PHASE UNITS ONLY), PRESENT A SAFETY HAZARD
FOR A MINIMUM OF 5 MINUTES AFTER THE POWER HAS BEEN REMOVED FROM THE
UNIT. CHECK THAT THESE CAPACITORS ARE DISCHARGED BEFORE TOUCHING ANY
PARTS.
PLEASE NOTE THAT THE VOLTAGE MEASURED IN STEP 4 WILL NOT NECESSARILY BE THE
SAME AS THE VOLTAGE AT THE MAIN DISCONNECT BOX IN THE ROOM. THE REASON FOR THIS
IS THAT A LINE ADJUSTING TRANSFORMER MAY BE USED WITH THE GENERATOR WHICH
STEPS THE INCOMING LINE VOLTAGE TO THE GENERATOR UP OR DOWN.
GENERATORS WITH NO LINE ADJUSTING TRANSFOMER SHOULD HAVE THE SAME
VOLTAGE IN STEP 4 AS IS SUPPLIED AT THE MAIN DISCONNECT BOX IN THE ROOM. UNITS
WITH A LINE ADJUSTING TRANSFORMER SHOULD HAVE THE FOLLOWING VOLTAGES AT THE
MAIN LINE FUSES IN THE POWER SUPPLY CABINET.
VOLTAGE AT MAIN DISCONNECT BOX
(LINE ADJUSTING TRANSFORMER INPUT)
480 VAC ± 10 %
400 VAC ± 10 %
4. Measure and record the voltage across the main line fuses in the power supply. Single phase
units will only use one set of voltage measurements.
L1 phase to L2 phase =
L1 phase to L3 phase =
L2 phase to L3 phase =
5. Are these voltages within specification for the unit as per chapter 1C for generators without a line
adjusting transformer, or within specification per the table above for units with a line adjusting
transformer?
___ Check
6. Switch OFF the mains power to the generator. Verify that there is no voltage present across any
of the mains input phases. Replace the safety cover on the main input fuse block, then switch ON
the mains and generator.
7. Verify that the red LED (DS1) located near the center of the generator interface board is lit.
_____ Check
8. Verify that the red LED (DC BUSS OK) located on the power input board is lit.
_____ Check
Page 2-32
VOLTAGE AT MAIN FUSES IN POWER SUPPLY
(LINE ADJUSTING TRANSFORMER OUTPUT)
400 VAC ± 10 %
480 VAC ± 10 %
______ VAC.
______ VAC.
______ VAC.
Rev. H Indico 100 Series Service Manual
CPI Canada Inc.
Ch # 740895-04