User Manual - Rev AJ California Instruments
If the pow
matching
er system to be adjusted is an MX60, MX90 or an MX135, the procedure involves
the output voltage of the A, B and C power modules in the master cabinet to the A, B
and C power modules in the auxiliary cabinet(s). Proceed as follows:
he controller is indeed set for 3-phase operation (MX60, MX90 or MX135).
2. Shut off all power to the cabinets. Disconnect the two wires going to Terminal 6 and
master cabinet. Power
cabinet. Set the controller to the 300V range, program 230V at 60Hz. Enable the
t by pressing the OUTPUT ON/OFF key. Measure the A module output voltage and
write it down. Press the OUTPUT ON/OFF key to disable the output.
to
N/OFF key to
enable the output. Measure the C module output and write it down, Press the OUTPUT
disable the output.
6. Move the DMM leads to the A module terminals 6 and 7 in the
auxiliary cabinet. Press the
/OFF ke able the output. Verify the phase A module output is
lts of th the master cabinet. If it is not, adjust the pot behind the
hole in the upper left A output matches the A master output
in 50mVolts. Pres sable the output.
7 e the DMM leads minals 6 and 7 in the
auxiliary cabinet. Press the
TPUT ON/OFF ke the output. Verify the phase B module output is
in 50mVolts of th is not, adjust the pot behind the
in the upper left tches the B master output
in 50mVolts. Pres put.
8. Move the DMM leads to the C module terminals 6 and 7 in the
auxiliary cabinet. Press the
OUTPUT ON/OFF key again to enable the output. Verify the phase C module output is
module in the master cabinet. If it is not, adjust the pot behind the
hole in the upper left corner of the module so the C output matches the C master output
within 50mVolts. Press the OUTPUT ON/OFF key to disable the output.
9.
10. Power down system and replace the wires er
modules.
1. Verify t
Terminal 7 on the lower front of the power modules. Do this to module A, B and C in the
auxiliary cabinet(s) only. Place some temporary insulation over the lug ends.
3. Connect a DMM between terminals 6 and 7 on the A module in the
up the
outpu
4. Move DMM leads to the B module terminals 6 and 7. Press the OUTPUT ON/OFF key
enable the output. Measure the B module output and write it down, Press the OUTPUT
ON/OFF key to disable the output.
5. Move DMM leads to the C module terminals 6 and 7. Press the OUTPUT O
ON/OFF key to
OUTPUT ON
within 50mVo
y again to en
e A module in
corner of the module so the
with s the OUTPUT ON/OFF key to di
. Mov to the B module ter
OU y again to enable
with e B module in the master cabinet. If it
hole corner of the module so the B output ma
with s the OUTPUT ON/OFF key to disable the out
within 50mVolts of the C
If power system under adjustment is an MX135, then repeat steps 6, 7 and 8 above for the
second auxiliary cabinet.
to terminals 6 and 7 on the auxiliary pow
MX Series
172
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