Delta VFD-B Series User Manual

Chapter 2 Installation and Wiring|VFD-B-P Series
2-28 Revision April 2009, SW V1.00
Grounding terminals ( )

Make sure that the leads are connected correctly and the AC drive is properly grounded.
(Ground resistance should not exceed 0.1
Ω
.)

Use ground leads that comply with local regulations and keep them as short as possible.

Multiple VFD-B-P 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.
goodexcellent
not allowed
2.4.4 Control Terminals
Circuit diagram for digital inputs (SINK current 16mA.)
+24
SINK Mode
multi-input
terminal
Internal Circuit
DCM
+24V
Multi-Input
Terminal
DCM
Internal Circuit
SOURCE Mode
Terminal symbols and functions
Terminal
Symbol
Terminal Function
Factory Settings (SINK)
ON: Connect to DCM
FWD Forward-Stop command
ON: Run in FWD direction
OFF: Stop acc. to Stop Method
REV Reverse-Stop command
ON: Run in REV direction
OFF: Stop acc. to Stop Method
JOG Jog command
ON: JOG operation
OFF: Stop acc. to Stop Method
EF External fault
ON: External Fault. Display “EF” and stop
acc. To Stop Method.
OFF: No fault

Delta VFD-B Series Specifications

General

Series	VFD-B
Cooling Method	Fan cooling
Overload Capacity	150% for 60 seconds
Braking Unit	Built-in
Control Mode	V/F control, Sensorless Vector Control
Communication	RS-485
Protection Features	Overvoltage, Undervoltage, Overcurrent, Overload, Overtemperature, Short Circuit
Operating Temperature	-10°C to +50°C
Storage Temperature	-20°C to +60°C
Humidity	90% RH (non-condensing)
Altitude	1000m (Derating required above 1000m)