Yaskawa GPD503 Drive - Manual (Page 48)

2.13 FREQUENCY (AUTO) COMMAND BIAS/GAIN
bn-05: Frequency Command Gain Factory setting: 100.0 %
Range: 0.0 to 1000.0 %
Sets the auto-speed frequency command gain,
in increments of 0.1%.
bn-06: Frequency Command Bias Factory setting: 0 %
Range: -100 to 100 %
Sets the auto-speed frequency command bias,
in increments of 1%.
ADJUSTMENT PROCEDURE:
A. For 0-10 Vdc input (term. 13)
1. With no input, adjust Bias (bn-06 setting) until an output of
0.00 Hz is obtained.
2. With full scale input, adjust Gain (bn-05 setting) until an output
of 60.00 Hz (or other desired max. output frequency) is obtained.
B. For 4-20mA input (term. 14)
1. With 4mA input, adjust Bias (bn-06 setting) until an output of
0.00 Hz is obtained.
2. With 20mA input, adjust Gain (bn-05 setting) until an output
of 60.00 Hz (or other desired max. output frequency) is obtained.
NOTE
Follow the same adjustment procedure for other
desired frequency setpoints.
2-17
10V 0V
FREQ. REF.
INPUT FREQ. REF.
INPUT
FREQ.
CMD
(%)
0
FREQ.
CMD
(%)
0
100% 100%
(+)
(–)
(+)
(–)
100% 100%
0V 10V
BIAS
GAIN
(+)
(–)
(+)
(–)
110
110
100
100
80
80
BIAS GAIN