Controller - GSE 60 SERIES Technical Reference Manual

2-16 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 open the panel-mount 660, 661, and 662 controllers:
1. Remove AC power by unplugging the controller from the power outlet
socket.
2. Disconnect any additional cables from the respective source
connectors.
3. Remove the M4 hex bolt, if installed. Hook a finger under the edge of
the cover. Pull outward and upward to disengage the cover from the
mounting plate tabs.
4. Install the load cell leads into J2 on the main board (see page 2-19).
To re-install the rear panel:
1. Move the rear cover into position. Ensure that all of the cables are
positioned within the cutouts of the cover. Press the cover straight
towards the panel until the left and right side slots snap over the tabs
on the mounting plate.
2. Mount the rear cover, if used, to the controller with the four 8-mm hex
head screws.
3. Install the M4 hex bolt in the upper left corner using a 7mm socket.
4. Reconnect any cables from the respective source connectors.
5. Plug the controller into the AC power outlet socket.
6. Test the controller for proper operation.
663 C
ONTROLLER
The Model 663 controller is designed for permanent installation as a
control panel. It has four mounting flanges. The holes and slots are 0.44 in
(11.2 mm) diameter to accommodate 7/16-in diameter or M8 metric
fasteners.
Refer to Appendix A for dimensional drawings.
To open the 663 Controller:
1. Turn off the controller by disconnecting it from the AC power supply.
2. Using a large, flat-tip screwdriver, loosen the spring-loaded 1/4-20
slotted pan head screws in the two fastening clamps on the right side
of the controller, and slide the clamps to the right (see Figure 2-11).
3. Open the controller door.
4. Remove the M4 hex bolt, if installed. Hook a finger under the edge of
the cover. Pull outward and upward to disengage the cover from the
mounting plate tabs.
5. Locate the main board near the middle right of the controller door
interior (see Figure 2-12).