American Magnetics 430, Installation, Operation And Maintenance Instructions

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R
EV
9 15
A
MERICAN
M
AGNETICS
, I
NC
. I
NSTALLATION
: P
OWER
R
EQUIREMENTS
CAUTION
If the system includes the High-Stability Option, operating
the system without power applied to the current transducer
(CT) can result in loss of control, and may damage the CT.
NOTE
AMI recommends energizing the Model 430 Programmer from
the same power source as the power supply to be controlled.
Since both the Programmer and the power supply are floating, if
the ground potentials of the Programmer 115 VAC outlet and the
Power Supply 230 VAC outlet different, an AC ground loop can
form which can cause control anomalies. Refer to following
section if the line voltage needs to be changed to 230 VAC.
Ensure the front panel power switches are in the
O
(OFF) position. Verify
that the Model 430 Programmer and power supply component(s) are
configured for the proper operating voltage by referring to the label
adjacent to the power entry connector on the equipment rear panels. If
the operating voltage is correct, plug the line cords into the power entry
connectors, and then into the appropriate facility power receptacles.
C
HANGING THE
M
ODEL
430 P
ROGRAMMER
O
PERATING
V
OLTAGE
WARNING
The following procedure is to be performed only when the
Model 430 Programmer is completely de-energized by
removing the power-cord from the power receptacle.
Failure to do so could result in personnel coming in contact
with high voltages capable of producing life-threatening
electrical shock.
NOTE
The voltage selector switch is labeled “115” for nominal line
voltages from 100 to 115 VAC. The switch is labeled “230” for
nominal line voltages of 200 to 230 VAC.
If the Model 430 Programmer operating voltage must be changed,
ensure the instrument is de-energized by disconnecting the power cord
from the power source. Remove the Model 430 Programmer cover by
removing the four screws on both sides of the cover and the four screws
from the corners of the cover on the back panel; slide the voltage
selector switch on the main printed circuit board to the proper voltage.
Replace the Model 430 Programmer cover.