Eaton Cutler-Hammer SLX9000 Series, Руководство пользователя

Страница: 138 / 172

SLX9000 Adjustable Frequency Drives User Manual
9-28
For more information visit: www.eaton.com MN04003020E
January 2009
Figure 9-20: Stall Characteristics Settings
Figure 9-21: Stall Time Count
2.7.12 Stall current limit ID710
The current can be set to 0.0 – I
nMotor
* 2. For a stall stage to occur, the current must
have exceeded this limit. See Figure 9-20 . The software does not allow entering a
greater value than I
nMotor
* 2. If the parameter 2.1.9 Nominal current of motor is
changed, this parameter is automatically restored to the default value (I
nMotor
* 1.3).
2.7.13 Stall time ID711
This time can be set between 1.0 and 120.0s.
This is the maximum time allowed for a stall event detection. 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
Figure 9-21 ).
S tall Area
Par. ID710
Par. ID712
f
I
S tall Time Cou n ter
Trip Area
Par. ID711
S tall
No S tall
Time
Trip/ War n i n g
Par. ID709