Lambda ESKI Instruction Manual - page 9
3.1 TURN-ON CHECK OUT PROCEDURE
The front panel surface contains all the controls and indicators necessary to operate the
supply in its normal mode. The following checkout procedure describes the use of the
front panel control and indicators (Fig. 2) and insures that the supply is operational. This
preliminary check of the power supply is done without a load connected.
DANGER:
Before conducting this test, the output terminal guard must be removed and at
least 6" of space around the output terminal must be maintained.
3.1.1 Check the jumpers in the connector P101 on the back of the set.Pin 1 should be
jumpered to Pin 9. Pin 3 to 10, Pin 7 to 8, and Pin 6 to Pin 12. This jumper
configuration will allow the supply to be operated via the front panel controls.
3.1.2 Set CURRENT CONTROL (5) to maximum CCW.
3.1.3 Connect the AC power to the terminal strip TB1 on the back of the power supply.
3.1.4 Turn the CIRCUIT BREAKER (1) on/off switch to "ON". the fans will start
immediately, but there is a 10 to 15 second delay before voltage or current output
will occur. This is caused by the soft start circuit.
3.1.5 The UNIT ON INDICATOR (2) should be on. Turn LAMP ON/OFF SWITCH (3)
on.
3.1.6 Advance CURRENT CONTROL (5) slowly. The DC VOLTMETER (7) will deflect
from zero to maximum rating of the supply as this control is advanced clockwise.
3.1.7 Push the IGNITION BUTTON (4) and hold for 10 seconds. The ignition spark gap
should be heard snapping approximately once per second. (If automatic ignition is
present the spark gap should be heard just after the output voltage is present in
Step 3.1.6).
3.1.8 Turn the current control maximum CCW and turn off the CIRCUIT BREAKER (1).
These tests indicate the power supply is operating and is ready to be connected to
a lamp.
3.2 MODES OF OPERATION
This supply is designed so that its mode of control is selected by the jumpers on P1. The
following chart details the function of each pin.
PIN #
FUNCTION
1 & 9
External ON/OFF switch connection, ON when shorted.
3 & 10
External interlock connection shorted is normal.
4 & 2
Current monitor output (pin 4) & common (pin 2).
5
External modulation input.
6 or 7 & 11 External control (0-5 V) input (pin 6 or 7) com (pin 11).
8
One milliAmp current source output.
12
Front panel potentiometer connection.
Page 7 of 18
83-475-001 Rev. D