Delta VFD-B Series User Manual

Chapter 5 Parameters_VFD-B Series
Revision 10/2005, BE13, SW V4.08 5-109

AC motor drive action when the feedback signals (analog PID feedback or PG (encoder) feedback) are
abnormal acc. to Pr.10-16.
10 - 16
Deviation Range of PID Feedback Signal Error Unit: 0.01
Settings 0.00~100.00% Factory Setting: 100.00
The base is Pr.01-00. When in PID feedback control, if | Source of PID reference target – feedback | > Pr.10-
16 and exceeds Pr.10-08 detection time, the AC drive will operate according to Pr.10-09.
10 - 10
PG Pulse Range Unit: 1
Settings 1 ~ 40000 (Max=20000 for 2-pole motor) Factory Setting: 600

A Pulse Generator (PG) or encoder is used as a sensor that provides a feedback signal of the motor speed.
This parameter defines the number of pulses for each cycle of the PG control.

For PG or encoder feedback an option PG-card is needed.
10 - 11
PG Input
Factory Setting: 00
Settings 00 Disable PG
01 Single phase
02 Forward / Counterclockwise rotation
03 Reverse / Clockwise rotation

The relationship between the motor rotation and PG input is illustrated below:
FWD
CCW
REV
CW
PULSE
GENERATOR
PG
10-11=02
10-11=03
A
phase leads B phase
A phase
A phase
A phase
B phase
B phase
B phase
CW
B phase leads A phase

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)