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

182 Description of Parameters Honeywell
708 Motor thermal protection: Motor duty cycle 234567 (2.7.12)
Defines how much of the nominal motor load is applied.
The value can be set to 0%…100%. See chapter 9.4.
Motor temperature
105%
Trip area
Motor
current
I/I T
Fault/warning
par. ID704
Motor temperature
Time constant T *)
Θ = (I/I T ) 2 x (1-e -t/T )
*) Changes by motor size and
adjusted with parameter ID707
Time
NX12k82
Figure 8-48. Motor temperature calculation
709 Stall protection 234567 (2.7.13)
0 = No response
1 = Warning
2 = Fault, stop mode after fault according to ID506
3 = Fault, stop mode after fault always by coasting
Setting the parameter to 0 will deactivate the protection and reset the stall time counter.
See chapter 9.5.
710 Stall current limit 234567 (2.7.14)
The current can be set to 0.0…2*I H . For a
stall stage to occur, the current must have
exceeded this limit. See Figure 8-49. The
software does not allow entering a greater
value than 2*I H . If parameter ID107 Nominal
current limit of motor is changed, this
parameter is automatically calculated to 90%
of the current limit. See chapter 9.5.
Par. ID710
I
Stall area
f
Par. ID712
NX12k63
Figure 8-49. Stall characteristics settings
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