Elgar CW 1251M, Operation Manual, Page: 45 / 48

Elgar CW-M Series
q
FAULT LAMP
When lit, this lamp indicates that a fault condition has been detected, and that
the system output has been turned off automatically.
Some conditions that cause this to occur include: output over-voltage, output
over-current, high internal temperature, changing the output voltage range while
the output is turned on, starting the system with the output turned on and the
unit in power up to zero volts mode, or an internal system failure.
r
SLAVE LAMP
When lit, this lamp indicates that the unit is operating in the slave mode.
s
OUTPUT ON LAMP
When lit, this lamp indicates that the output switch has been set to the on
position, and power is on the output terminals.
t
OUTPUT ON/OFF/RESET SWITCH
Located on the right side of the front panel, this switch allows you to energize
the output terminals of the power supply.
If the unit is operating in the fault
mode, and if the fault condition has cleared, then cycling this switch will restore
normal operation.
5.1 Parallel and Multiphase Operation
Follow the instructions in Section 3.8, Section 3.9, and Section 4 to set up paralleled or
multiphase units.
•
Turn on the slaves prior to the master unit. If the master is tuned on first, it will
initialize in a fault condition, and it will need to be reset.
If a fault occurs, the fault light on the unit with the fault and the fault light on the
master will light. Once the cause of the fault has been corrected, toggle the
OUTPUT ON/OFF/RESET switch on the master to reset all of the units.
•
The unit designated as the phase and current master controls the OUTPUT
ON/OFF/RESET switch and the V RANGE HIGH/LOW switch.
•
The Voltage LED, Current LED, current setting, and frequency setting user
controls have no functionality on current slaves (parallel units).
•
The phase master controls the range HIGH/LOW function for all units. However,
to display the correct voltage of the output on phase slaves, set the V RANGE
switches to match the phase master. The OUTPUT ON/OFF/RESET switch
positions of the slaves do not matter. The master controls all units, and its LED
indicates the state of the system.
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