vacon • 141 Parameters
6
Figure 48. Setting of minimum load
P3.9.4.4 TIME LIMIT
This time can be set between 2.0 and 600.0 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 P3.9.4.1). If the drive is stopped the un-
derload counter is reset to zero. See Figure 49.
Figure 49. Underload time counter function
Par.
ID714
9131.emf
Par.
ID715
f
5 Hz
Underload area
Torque
Fieldweakening
point
Par. ID716
9132.emf
Trip area
Time
Underload time counter
Underload•
No underl.
Trip/warning
par. ID713