NXS Form 63-2600, Users Manual, Technical Data - CONTROL ...

184 Description of Parameters Honeywell
715 Underload protection, zero frequency load 234567 (2.7.19)
The torque limit can be set between 5.0—150.0 % x TnMotor.
This parameter gives value for the minimum torque allowed with zero frequency. See
Figure 8-51.
If you change the value of parameter ID113 (Motor nominal current) this parameter is
automatically restored to the default value. See chapter 9.6.
716 Underload time 234567 (2.7.20)
This time can be set between 2.0 and 600.0 s.
This is the maximum time allowed for an underload state to exist. An internal up/down
counter counts the accumulated underload time. If the underload counter value goes
above this limit the protection will cause a trip according to parameter ID713). If the drive
is stopped the underload counter is reset to zero. See Figure 8-52 and chapter 9.6.
Underload time counter
Par. ID716
Trip area
Trip/warning
par. ID713
Time
Underload
No underl.
NX12k66
Figure 8-52. Underload time counter function
717 Automatic restart: Wait time 234567 (2.8.1)
Defines the time before the frequency drive tries to automatically restart the motor after
the fault has disappeared.
718 Automatic restart: Trial time 234567 (2.8.2)
The Automatic restart function restarts the frequency drive when the faults selected with
parameters ID720 to ID725 have disappeared and the waiting time has elapsed.
Automation and Control Solutions
Honeywell
Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MIN 55422 Scarborough, Ontario 63-2600-1
MIV 4Z9
www.honeywell.com