H73: Monitoring Item Select
Range: 0 - 2 (Default: 0)
Description: The selected item in H73 [Monitoring item select] can be monitored via
vOL - [User display select]. If output power or torque is selected, Por or tOr
will be displayed. Enter motor efficiency indicated on motor nameplate in
H36 to display correct torque.
Display:
Function:
0 Output voltage [V]
1 Output power [kW]
2 Torque [kgf m]
H74: Gain for Motor RPM Display
Range: 1-1000% (Default: 100)
Description: This parameter is used to change the motor speed display to rotating speed
(r/min) or mechanical speed (rpm).
Motor RPM can be monitored in rPM:
•
When H40 is set to 0 {V/F control} or 1 {PID control}, the drive output
frequency (f) is displayed in RPM using the formula below. Motor slip is
not considered.
RPM
f
H
H
=
´
æ
è
ç
ç
ö
ø
÷
÷
´
120
31
74
100
•
H31: Enter the number of rated motor poles on the nameplate.
•
H74: This parameter is used to change the motor speed display to rotating
speed (r/min) or mechanical speed (m/min).
H75: DB Resistor Operating Rate Limit Select
Range: 0 - 1 (Default: 1)
Description: This must be set when using an external DB resistor. The duty is calculated
by ‘%ED=Decel time * 100 / (Accel time + Steady speed time + Decel time
+ Stop status time)’.
Display:
Function:
0 No Limit
1 ED is limited as the setting in H76
103
6 - Parameter Descriptions
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