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XCITE
2.2.
Electrical Control System
The Electrical Control System for the 1001P Hydraulic Power Supply is pack-
aged in two enclosures mounted inside the pump cabinet. The first enclosure
is accessible from the front panel of the Power Supply by removing four screws
and is called "Electrical Control Box #1". See Drawing B-30223
This enclosure contains the fuses for the system designated as:
The second enclosure is mounted near the top of the Power Supply and is only
accessible by removing the entire pump assembly from the cabinet. This
enclosure is called "Electrical Control Box #2" and contains the motor starter,
control relays and control transformer. See Drawing B-30224
During operation, either 115 VAC or 230 VAC single phase power is applied to
the main contacts of the pump motor starter; the time delay relay of the cooling
fan and transformer T1. The voltage selector switch (107PB) selects operation
of the entire 1001P Hydraulic Power Supply from either 115 VAC or 230 VAC,
60 Hz. Drawing B-30222 and B-30224 depicts the voltage selector switch in the
230 Volt position. In this position, voltage is applied to the primary coil of
transformer T-1 and is "stepped" down to 115 VAC for operation of all control
relays and the Xcite Master Controller.
When the voltage selector switch 107PB is switched to the 115V position,
115 VAC power is applied directly to the control relays and the Xcite Master
Controller. The Pump Motor (MTR1) and the Fan Motor (MTR2) are
automatically converted to 115V operation by switching the windings of
MTR1 and MTR2 with control relays 111CR and 112CR respectively.
The 1001P Hydraulic Power Supply is started when the START button on the
Xcite Master Controller is depressed. 115V control voltage is applied back
through J1-D to the "Remote Emergency Stop Connector" (RES); the
"Emergency Stop" button and then to the coils of motor starter control relays
115M and 116M. In order for voltage to reach these control relays, the oil level/
temperature and filter switches must all be closed. This means there is sufficient
oil in the reservoir, the oil temperature is less than 150° F and the oil filter is
clean. If these conditions are all met, the control relays 115M and 116M are
energized and MTR1 and MTR2 are started.
107FU - 4.0 Amp (Fan Motor Fuse)
108AFU - 6.25 Amp (115 Volt Operation Fuse)
108BFU - 3.2 Amp (230 Volt Operation Fuse)
Field Test Power Supply
FTPS - 2
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