WEG MVW3000 A0040 V023, User Manual

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7-4 | MVW3000
7
7-4 | MVW3000
7
Optional Accessories and Boards
Table 7.2: Configuration of the switches
Signal Factory Default Function Setting Element Selection
AI1 Speed reference S2.A
OFF - (0 to 10) V (1)
ON - (0 to 20) mA / (4 to 20) mA
AI2 No function S2.B
OFF - (0 to 10) V (1)
ON - (0 to 20) mA / (4 to 20) mA
AI5 No function S3.A
OFF - (0 to 10) V (1)
ON - (0 to 20) mA / (4 to 20) mA
AO5 Speed S4.A
OFF - (0 to 20) mA (1)
ON - (4 to 20) mA
AO6 Motor current S5.A
OFF - (0 to 20) mA (1)
ON - (4 to 20) mA
(1) Factory default.
Related parameters: P0221, P0222, P0234 to P0240.
During the signal and control wiring installation, pay attention to:
1. Cable gauge 0.5 mm² to 1.5 mm².
2. Maximum torque: 0.50 N.m (4.50 lbf.in).
3. XC1A, XC1B and XC1C wiring must be made with shielded cables and be separated from other cables (power,
110/220 V command, etc.). If crossing of these cables is unavoidable, install them perpendicularly, keeping a minimum
separation distance of 5 cm (2 in) at the crossing point.
Connect the shield as shown below:
The shield connection screws are located on the MVC4 board and on its mounting plate.
Insulate with tape
Connect to the ground
Do not ground
Inverter side
Figure 7.5: Shield connection
4. It is necessary to use galvanic isolators at the XC1B terminal strip signals for wiring distances longer than 50 m
(150 ft).
5. Relays, contactors, solenoids or electromagnetic braking coils installed near inverters can generate interference
in the control circuit. In order to eliminate this interference, connect RC suppressors in parallel with the coils of AC
relays. Connect a free-wheeling diode in case of DC relays/coils.
6. When an external keypad (HMI) is used (for further information, refer to the programming manual available for
download on:
www.weg.net
), separate the cable that connects the keypad to the inverter from other cables of
the installation, keeping a minimum distance of 10 cm (4 in) between them.