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User Manual
D750
DC Power Supply
3.1.5.2 Resetting the SW1 switch
Before making any changes to the SW1 switch setting, disable the power supply output
by pressing the front panel OUT button. Ensure that the output voltage falls to zero and
OUT LED is off, then use any small flat-bladed screwdriver to change the SW1 switch
setting.
3.1.6 Rear Panel J1 Programming And Monitoring Connector
The J1 Programming and Monitoring connector is a DB25 subminiature connector located
on the power supply rear panel. Refer to Table 3-4 for description of the connector
functions. The power supply default configuration is Local operation which does not require
connections to J1. For remote operation using J1 signals use the plug provided with power
supply or equivalent type. It is essential to use plastic body plug to conform with Safety
Agency requirements. If a shield is required for J1wires, connect the shield to a power
supply chassis ground screw.
3.1.6.1 Making J1 connections
- J1 connector type: Coxoc, P/N: 205AE25FGTBBB3
- J1 plug description: AMP, P/N: 745211-7
- Wire dimension range: AWG26-22
Before making any connection, turn the AC On/Off switch to the Off position and wait until
the front panel display has turned Off.
Terminals 12, 22 and 23 of J1 are connected internally to of the power supply. Do
not attempt to bias any of these terminals relative to the negative sense. Use the
Programming interface option to allow control from a programming source at a different
To prevent ground loops and to maintain the isolation of the power supply when
There is a potential shock hazard at the output when using a power supply with rated
output greater than 40V. Use wires with minimum insulation rating equivalent to the
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potential relative to the power supply negative
programming from J1, use an ungrounded programming source.
maximum output voltage of the power supply.
CAUTION
CAUTION
WARNING
!
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