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Installation Guidelines
3.8
Output Voltage Adjust
If it is not possible or desirable to use the remote sense feature to maintain the required
DC voltage at the load, the output voltage of the power supply can be increased (up to
18V approximately).
The output voltage adjustment trim-pot is accessible through a small hole on the rear
panel, just below the auxiliary inputs connector.
3.8.1
Adjusting the Output Voltage
To adjust the output voltage you will need a 3mm blade, or Phillips head trimmer tool
(do not use a standard flat blade screwdriver to make the adjustment):
• To increase the output voltage, turn the trim-pot clockwise.
• To decrease the output voltage, turn the trim-pot anticlockwise.
Warning:
If the output voltage is increased on a power supply operating at, or close to,
full load, the power supply loading must be reduced accordingly or the
module may overheat.
Always check, using the following calculation, to ensure that the total output power has
not exceeded the maximum rated power:
Output voltage x load current < (414W x derating factor)
If necessary, reduce the load current to compensate for the increased output voltage.
Note:
A derating factor may or may not apply depending on operating conditions.
Refer to Section 3.9 (Power Supply Cooling and Derating).
November 2004
MBZ-00001-01
Copyright © 2004 Tait Electronics Ltd
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