Chapter 2 Installation and Wiring|VFD-B Series

WARNING!

1. Short-circuiting [B2] or [-] to [+2/B1] can damage the AC motor drive.

Grounding terminals ( )

„ Make sure that the leads are connected correctly and the AC drive is properly grounded.

(Ground resistance should not exceed 0.1Ω.)

„ Use ground leads that comply with local regulations and keep them as short as possible.

„ Multiple VFD-B units can be installed in one location. All the units should be grounded

directly to a common ground terminal, as shown in the figure below. Ensure there are no

ground loops.

excellent

good

2.4.4 Control Terminals

Circuit diagram for digital inputs (SINK current 16mA.)

not allowed

SINK Mode

+24

multi-input

te rm in al

SOURCE Mode

Multi-Input

Terminal

DCM

Internal Circuit

DCM

Terminal symbols and functions

Terminal

Symbol

Terminal Function

FWD Forward-Stop command

REV Reverse-Stop command

+24V

Internal Circuit

ON:

OFF:

ON:

OFF:

Factory Settings (SINK)

ON: Connect to DCM

Run in FWD direction

Stop acc. to Stop Method

Run in REV direction

Stop acc. to Stop Method

Revision July 2008, BE16, SW V4.08 & V5.00

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