Fuji Electric FRENIC MEGA G2 Series - Page 443

5.3 Description of Function Codes 5.3.5 H codes (High performance functions)
5-259
FUNCTION CODES
Chap 5
FUNCTION
CODES
F Codes
E Codes
C Codes
P Codes
H Codes
A Codes
b Codes
r Codes
J Codes
d Codes
U Codes
y Codes
K Codes
 Mechanical loss compensation (H158)
Use this function to compensate the amount of the mechanical loss of a load.
• Data setting range: 0 to 300.00 (%) of a motor rated torque
 Torque bias hold command “H-TB” (E01 to E09, data = 62)
Turning this terminal command ON enables a torque-bias hold command. Hold is canceled by turning this terminal
OFF.
 Startup timer (H159)
By simply adding the torque bias, the shock may be large. By setting the timer with this function code, the motor
can be started with minimal shock. H159 is the time to increase the bias torque from 0 to 100 % of the motor rated
torque. If this function code is set to “0.00”, the torque bias is activated immediately.
• Data setting range: 0.00 (factory default) to 1.00 (s)
 Shutdown timer (H161)
By setting the shutdown timer, torque bias can be eliminated gradually in the same way as the startup timer. H161
is the time to decrease 100% of the torque. If this function code is set to “0.00”, the torque bias is activated
immediately.
• Data setting range: 0.00 (factory default) to 1.00 (s)
 Torque bias (Limiter) (H162)
Analog torque bias normally uses a load, but if the sensor is faulty, there is a risk of an excessive torque bias being
set. By setting the torque bias limiter, the torque bias value maximum value can be limited.
Data setting range: 0 to 300(%) (factory default: 200%)
H173
Magnetic flux level at light load
This function decreases the motor magnetic flux at light load and can reduce the motor noise. This can only be used
under vector control with sensor. The motor magnetic flux command is controlled in proportion to torque current
command that is less than 50%. H173 specifies the minimum value of the flux command. Refer to the figure below.
Data setting range: 10 to 100(%) (factory default)
|Torque current command|
Flux command
100%
[H173] %
50%
0%
0%
H180
Brake control signal (Check-timer for brake operation) Related function code: J68 to J72
Refer to the description of J68.