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4.4.2. 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 the OUT LED is Off. Then use any small flat-bladed screwdriver to change
the SW1 switch setting.
4.5. Rear Panel J1 Programming and Monitoring Connector
The J1 Remote Analog Programming and Monitoring connector is a DB25 subminiature
connector located on the Power Supply rear panel. Refer to Table 4-4 for a description of
the connector functions. The power supply default configuration is Local operation, which
does not require connections to J1. For Remote Analog operation using J1 signals, use
the plug provided with the Power Supply (or equivalent type). It is essential to use a
plastic body plug to conform to Safety Agency requirements. A shielded cable is required
to maintain EMC Specifications for the J1 wires. Connect the shield to a Power Supply
Chassis ground screw.
4.5.1. Making J1 Connections
•
J1 connector type: AMP, P/N: 747461-3
•
J1 plug description: AMP, P/N: 745211-7 or -8
•
Wire dimension range: AWG26-22
•
Extraction tool: AMP, 91232-1 or equivalent.
•
Manual Pistol grip tool:
−
Handle: AMP, P/N: 58074-1
−
Head: AMP, P/N: 58063-2
Before making any connection, turn the AC On/Off switch to the Off position, wait until
the front panel display has turned Off and wait until the Output voltage has dropped to
zero.
Connector pins J2-12, -22 and -23 are connected internally to the negative
local sense (-LS) potential of the Power Supply. Do not attempt to bias any
Use the Isolated Analog interface to allow control from a programming
source at a different potential than the Power Supply negative output.
To prevent ground loops and to maintain the isolation of the Power Supply
when programming from J1, use an ungrounded programming source.
CAUTION
of these terminals relative to the negative local sense.
There is a potential shock hazard at the Power Supply output. Use
wires with minimum insulation rating equivalent to the maximum
Output voltage of the Power Supply.
48
83532002 Rev H
WARNING
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