Rice Lake 480 Legend Series Digital Weight Indicator Installation Manual - Manual (Page 18)

14 480 Operator’s Manual
2.4 Option Card Installation
To install or replace the Analog Output Module (PN 131341, connector PN 76513) or Relay Board (PN 131342,
connector PN 157223):
1. Disconnect power to the indicator. Remove backplate as described in Section 2.2 on page 10.
2. If not already in place, install an option card bracket (PN 131340). See Figure 2-3.
3. Mount the analog output module or relay card on the option card bracket in Figure 2-3.
4. Plug the module input into connector J13 on the CPU board.
5. Connect output cable to the analog output for either current or voltage (see Section 9.10 on page 59).
Output relay rating of relay
2 AMPS at 30 VDC
Either slot position can be used for Analog Output Option. If slot one already has an option card in place, use
slot 2.
2.5 Board Removal
If you must remove any 480 board, use the following procedure:
1. Disconnect power to the indicator. Remove backplate as described in Section 2.2 on page 10.
2. Disconnect board from power supply cable.
3. Unplug connectors. Label connections for reinstallation of board.
4. Remove the four screws from the board, then lift the board off the backplate.
To install a board, reverse the above procedure. Be sure to reinstall cable ties to secure all cables inside the
indicator enclosure.
When removing lower boards, the upper boards and option bracket, if installed, will need to be removed first.
2.6 Enclosure Reassembly
Once cabling is complete, position the backplate over the enclosure and reinstall the backplate screws. Use the
torque pattern shown in Figure 2-5 to prevent distorting the backplate gasket. Torque screws to 10 in-lb (1 N-m).
Figure 2-5. 480 Enclosure Backplate
Torqued screws may become less tight as the gasket is compressed during torque pattern; a second torque is
required using the same pattern and torque value.
Note
Note
Note
1
2 4
3
11
5
7
9
6
8
12
10 Step 1.
Torque 1-4 in the order shown
1 3
4 2
Step 2.
Torque 5-8 in the order shown
7 6
5 8
Step 3.
Torque 9-12 in the order shown
11 10
9 12
Torque in-lb Nm
Backplate screws 10 1
Cable Glands 22 2.5
Cable Gland Caps 13.3 1.5
Vent 5-7 0.6-0.8
Table 2-1. Torque Values
Note