vacon • 65
Parameter description
4
Figure 15. Underload (Dry run) characteristic settings.
P9.9 U
NDERLOAD
LOAD
CURVE
AT
MIN
FREQ
P9.10 U
NDERLOAD
TIME
Definition of minimum load at nominal and zero speed zero. Fault condition delay. This time
can be set between 1.0 and 300.0 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 P9.7). If the drive is stopped the under-
load counter is reset to zero.
Figure 16. Underload time counter.
Par.
P9.8
Par.
P9.9
f
5 Hz
Underload area
Torque
Fieldweakening
point
Par. P9.10
Trip area
Time
Underload time counter
Underload•
No underl.
Trip/warning
par. P9.7
Содержание 20 CP/X
Страница 1: ...vacon 20 cp x ac drives Solar pump application manual ...
Страница 2: ......
Страница 4: ...vacon 1 5 Fault tracing 82 ...
Страница 6: ...1 vacon 3 Safety ...
Страница 16: ...vacon 13 Solar pump Application 2 ...
Страница 90: ......
Страница 91: ......