Wiring Terminal Blocks - Omron VARISPEED G7 Instruction Manual

Wiring Terminal Blocks

Use no more than 100 meters of wiring for PG (encoder) signal lines, and keep them separate from power
lines.
Use shielded, twisted-pair wires for pulse inputs and pulse output monitor wires, and connect the shield to the
shield connection terminal.
Wire Sizes (Same for All Models)
Terminal wire sizes are shown in Table 2.19.
Pulse generator power supply
Pulse input terminal
Pulse monitor output terminal
Shield connection terminal
Straight Solderless Terminals for Control Circuit Terminals
We recommend using straight solderless terminal on signal lines to simplify wiring and improve reliability.
Refer to Table 2.10 Straight Solderless Terminal Sizes for specifications.
Closed-loop Connector Sizes and Tightening Torque
The closed-loop connectors and tightening torques for various wire sizes are shown in Table 2.20.
Wire Thickness [mm
Wiring Method and Precautions
The wiring method is the same as the one used for straight solderless terminals. Refer to page 2-2-21. Observe
the following precautions when wiring.
Separate the control signal lines for the PG Speed Control Card from main circuit lines and power lines.
•
Connect the shield when connecting to a PG. The shield must be connected to prevent operational errors
•
caused by noise. Also, do not use any lines that are more than 100 m long. Refer to Fig 2.20 for details on
connecting the shield.
Connect the shield to the shield terminal (E).
•
Do not solder the ends of wires. Doing so may cause contact faults.
•
When not using straight solderless terminals, strip the wires to a length of approximately 5.5 mm.
•
-36
2
Terminal
Terminal
Screws
-
M3.5
Table 2.20 Closed-loop Connectors and Tightening Torques
Terminal
2
]
Screws
0.5
0.75
M3.5
1.25
2
Table 2.19 Wire Sizes
2
Wire Thickness (mm )
• Shielded, twisted-pair wire
Stranded wire: 0.5 to 1.25
• Shielded, polyethylene-covered, vinyl
Single wire: 0.5 to 1.25
sheath cable
(KPEV-S by Hitachi Electric Wire or
0.5 to 2
equivalent)
Crimp Terminal Size
1.25 - 3.5
1.25 - 3.5
1.25 - 3.5
2 - 3.5
Wire Type
Tightening Torque (N • m)
0.8