Firmware Manual

9000X AF Drives
8-66 For more information visit: www.eaton.com
MN04004001E
August 2010
Description of Parameters
Figure 8-51: Setting of Minimum Load
712 Stall frequency limit 234567 (P1.7.16)
The frequency can be set between 1 – f
mAx
(ID102).
For a stall state to occur, the output frequency must have remained below this limit.
See Page A-4.
713 Underload protection 234567 (P1.7.17)
0 No response
1 Warning
2 Fault, stop mode after fault according to ID506
3 Fault, stop mode after fault always by coasting
If tripping is set active the drive will stop and activate the fault stage. Deactivating the
protection by setting the parameter to 0 will reset the underload time counter to zero.
See Page A-5.
714 Underload protection, field
weakening area load
234567 (P1.7.18)
The torque limit can be set between 10.0 – 150.0 % x T
nMotor
.
This parameter gives the value for the minimum torque allowed when the output
frequency is above the field weakening point. See Figure 8-51.
If you change ID113, nominal motor current, this parameter is automatically restored
to the default value. See Page A-5.
715 Underload protection, zero
frequency load
234567 (P1.7.19)
The torque limit can be set between 5.0 – 150.0 % x T
nMotor
.
This parameter gives value for the minimum torque allowed with zero frequency. See
Figure 8-51.
If you change the value of ID113, nominal motor current, this parameter is
automatically restored to the default value. See Page A-5.
Torque
ID714
ID715
Underload Area
Field Weakening
Point ID602
5 Hz
f