Procedure - Saftronics VG520P4 Technical Manual

Chapter 3: Wiring
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Closed-Loop Connector Sizes and Tightening Torque
The closed-loop connectors and tightening torques for various wire sizes are shown in Table 3.16.
Wire Thickness
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Wiring Method
Use the following procedure to connect wires to the terminal block:
1. Loosen the terminal screws with a thin-slot screwdriver.
2. Insert the wires from underneath the terminal block.
3. Tighten the terminal screws firmly.
NOTE:
Wiring Precautions
1. Separate PG Speed Option Card control circuit wiring (Terminals TA1 and TA2) from main circuit wiring and other high-
power lines.
2. Use twisted-pair or shielded twisted-pair cables to connect the PG to prevent operating faults. Process cable ends as
shown in Figure 3.32. The maximum cable length is 100 meters (328 feet).
Connect to terminal
TA3 on the VG5.
3. Connect the shield to the ground terminal.
4. Do not solder the wires to the control circuit terminals. The wires may not contact well with the control circuit terminals
if the wires are soldered.
5. The end of each wire connected to the control circuit terminals must be stripped for approximately 5.5 mm (0.22
inches).
Firmware – S1043
Revision: 2 (9/98)
Table 3.16 Closed-Loop Connectors and Tightening Torques
AWG Sizes
2
(mm )
0.5 20
0.75 18
1.25 16
2 14
Figure 3.31 Connecting Wires to Terminal Block
Figure 3.3 Processing the Ends of Twisted-pair Cables
Crimp Terminal
Terminal Screws
M3.5
50
Tightening Torque
2
Size (mm ) (N · m)
1.25 to 3.5
1.25 to 3.5
0.8
1.25 to 3.5
2 to 3.5
© Saftronics, Inc.