VICI D-4-I-VA38-R - Manual (Page 15)

11
Installation
Pulser Module Installation
1. Mount the pulser module in the pneumatics area of the GC, using existing
slotted screw holes. (Figure 5)
2. Power to the pulser module is provided through cable assembly I-23628.
Drill a 12.0 mm diameter hole in the front panel of the GC to mount the
on/off switch.
3. Unscrew the switch mounting nut and remove it from the cable assembly
by sliding it over all the wiring.
4. Feed the wiring through the 12 mm hole from the front of the GC until the
threaded portion of the switch follows the wiring through the mounting hole.
5. Slide the switch mounting nut back over all the wiring, and tighten the nut
onto the threads.
6. Install the 4-pin connector by
inserting Pins 1-4 of the cable
assembly into the connector as
shown in Figures 6 and 7. (Once a
pin is snapped into the connector,
it cannot be removed.)
7. Plug the 4-pin connector into the pulser module.
8. Figure 8 is a schematic of a portion of the Varian GC power board.
Connect the red wire (+) of the I-23628 cable to pin 14 of “External
Events” connector J43, and the black wire (-) to pin 13.
1 2 3 4 5 6 7 8
9 10 11 12 13 14
TRANSFORMER
JACK
CHASSIS FAN
JACK
J42
J43
EXTERNAL
EVENTS 9 10 11 12 13 14
BLACK
RED
MAIN POWER
HARNESS JACK
COLUMN OVEN
HEATER JACK
Figure 8: Connections for 24 VDC for the pulser module
BLACK
BLACK
GREEN
RED
BLACK
BLACK
+
-
RED
BLACK
PIN 1
PIN 2
PIN 4
PIN 3
SWITCH MOUNTING NUT
Figure 6: Pulser cable assembly
BLACK 4
BLACK 2 3 GREEN
1 BLACK
Figure 7: 4-pin connector