137
SPX advanced – description of parameters
SPX ADVANCED APPLICATION MANUAL
SVCH0203—October 2017 www.eaton.com
Code
ID
Description
Notes
P1.12.5.5
708
Motor thermal protection: Motor duty cycle “Motor Duty Cycle”
The value can be set to 0%…150%.
Setting value to 130 % motor calculated temperature will reach nominal temperature
with 130 % of motor nominal current.
105%
par. ID704
= (I/I
T
)
2
x (1-e
-t/T
)
I/I
T
NX12k82
Trip area
Motor temperature
Time
Motor temperature
Time constant T*)
*)
Changes by motor size and
adjusted with parameter ID707
Fault/warning
Motor
current
P1.12.5.6
732
Response to thermistor fault “ThermistF.Resp”
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.
Figure 5-16 . Motor temperature calculation
