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

Honeywell Description of Parameters 183
711 Stall time 234567 (2.7.15)
This time can be set between 1.0 and
120.0s.
This is the maximum time allowed for a
stall stage. The stall time is counted by an
internal up/down counter.
If the stall time counter value goes above
this limit the protection will cause a trip
(see ID709). See chapter 9.5.
Par. ID711
Stall time counter
Trip area
Trip/warning
par. ID709
Time
Stall
No stall
NX12k64
712 Stall frequency limit 234567 (2.7.16)
Par. ID714
Figure 8-50. Stall time count
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
chapter 9.5.
713 Underload protection 234567 (2.7.17)
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 chapter 9.6.
714 Underload protection, field weakening area load 234567 (2.7.18)
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.
Torque
If you change parameter ID113
(Motor nominal current) this parameter
is automatically restored to
the default value. See chapter 9.6.
Par. ID715
Underload area
f
5 Hz
Fieldweakening
point par. ID602
NX12k65
Figure 8-51. Setting of minimum load
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