GSE 60 SERIES Technical Reference Manual page 34

Programmable process controllers
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2-14 Chapter 2
!
Any operation that involves
opening the controller enclosure
should be performed only by
qualified service personnel and
only after the power is completely
disconnected from the power
source! Hazardous voltage is
accessible within the enclosure.
GSE Scale Systems
To re-install the rear panel:
1. Connect the keypad ribbon cable to J5 on the main board (see Figure
2-9).
2. For the Model 660, connect the display cable to J3 on the main printed
circuit board.
or -
For the Model 661, connect the three wire display cable to J7 on the
main printed circuit board.
or -
For the Model 662, connect the display ribbon cable to J3 on the LCD
driver board #420921-36617. Connect the backlight cable to J4 on the
LCD driver board.
3. Move the rear panel into position.
4. Tighten the strain relief to ensure a firm grip on each cable.
5. Mount the rear panel to the controller with the eight 8-mm hex head
screws.
6. Using a #2 cross tip (Phillips) screwdriver, tighten the screws on the
rear panel. First tighten all the screws hand tight in order to provide
even pressure on the gasket, then tighten each screw until it begins to
visibly compress the gasket. This ensures the best environmental seal
and maximum electromagnetic interference (EMI), radio-frequency
(RFI), and electrostatic discharge (ESD) shielding performance. Over
tightening the screws can deform the rear panel resulting in a poor
seal.
7. Reconnect any cables to the respective source connectors.
8. Plug the controller to the AC power outlet socket.
9. Test the controller for proper operation.
P
M
660, 661
ANEL
OUNT
C
ONTROLLERS
Panel mount versions of the 660, 661, and 662 controllers are designed
for permanent mounting in washdown environments.
P
M
V
ANEL
OUNT
ERSION
Panel mount versions of the 660, 661, and 662 controllers offer a rear
cover to protect the main board against physical and electrical damage.
The rear cover enables easy access to the main board. There is no need
to remove the entire panel mount unit for servicing.
The rear cover snaps onto the board mounting plate. A single M4x0.7 hex
bolt is included for NTEP sealing and for fastening the rear cover.
Two slots are positioned at the bottom of the cover to enable power, load
cell, printer, computer, and other wire routing. All wire strain relieves and
terminals should be positioned below or near this area.
662
AND
R
C
EAR
OVER

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