TDK 750W HALF RACK Rear Panel J1 Programming and Monitoring Connector, Resetting the SW1 switch

Table 4-3: SW1 Positions Functions

Position	Function	DOWN (Factory default)	UP
	Output Voltage	Output Voltage	Output Voltage
SW1-1		programmed by	programmed by remote
	remote analog programming
		Front Panel	analog voltage
	Output Current	Output Current	Output Current
SW1-2		programmed by Front	programmed by remote
	remote analog programming
		Panel	analog voltage
SW1-3	Programming Range Select	0-5V/(0-5Kohm)	0-10V/(0-10Kohm)
	(Remote voltage/resistive)
SW1-4	Output Voltage and	0-5V	0-10V
	Current Monitoring Range
SW1-5	Shut-Off Logic select	Off: Low (0-0.6V) or Short	Off: Low (2-15V) or Open
		On: High (2-15V) or Open	On: High (0-0.6V) or Short
SW1-6	RS232/485 select	RS232 interface	RS485 interface
	Output Voltage	Output Voltage	Output Voltage
SW1-7		programmed by Front	programmed by
	Resistive Programming
		Panel	external resistor
	Output Current	Output Current	Output Current
SW1-8		programmed by Front	programmed by external
	Resistive Programming
		Panel	resistor
		Rear panel	Rear panel
SW1-9	Enable/Disable control	Enable/Disable control is	Enable/Disable control
		not Active	is Active

4.4.2 Resetting the SW1 switch

Before making any changes to the SW1 switch setting, disable the power supply output by press- ing 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 Programming and Monitoring connector is a DB25 subminiature connector located on the power supply rear panel. Refer to Table 4-4 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 a plastic body plug to conform to Safety Agency requirements. If a shield is required 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:745211-2

-Wire dimension range: AWG26-22 -Manual Pistol grip tool:

Handle:AMP, P/N:58074-1

Head:AMP, P/N:58063-2

-Insertion/Extraction tool: AMP, 91232-1

Before making any connection, turn the AC On/Off switch to the Off position and wait until the front panel display has turned Off.

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83-507-5002 Rev. B