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VMX
2
Series Digital Solid State Soft Starter User Manual
61 |
P a g e
5.6.15 Motor Power & Power Factor Protection Settings
F102 = Motor kW Trip Setting
Factory Setting = 0 (Disabled)
Range = 1 - 2, or 0 (Disabled)
When a value other than 0 is entered for F102, the starter will
trip according to the following settings:
1 = Over kW Trip
. If the calculated motor load exceeds the trip
point setting in F103 for the time set in F104, the starter will trip.
2 = Under kW Trip
. If the calculated motor load falls below the
trip point setting in F103 for the time set in F104, the starter will
trip.
F103 = Motor kW Trip Point
Factory Setting = 50 %
Range = 20 - 100 % of calculated motor full load kW rating
Motor rated power (kW) is calculated based upon Voltage times
Current times power factor (all of which are measured) times
1.732 (for 3 phase). Efficiency is assumed to be 100% for these
purposes.
F104 = Motor kW Trip Delay
Factory Setting = 1 second
Range = 1 - 999 seconds
Provides a time delay to prevent nuisance trips from short-
duration transients. Using default setting, if F102 is set to 1 and
the motor kW rises above the value in F103, the starter will trip
after 1 minute. Similarly, if F102 is set to 2 and the motor kW
falls below F103, the starter will trip in one minute.
F105 = Power Factor Trip Range
Factory Setting = 0 (Disabled)
Range = 1 - 3
When a value other than 0 is entered for F105, the starter will
trip according to the following settings:
1 = Trip on Lagging power factor
. If the measured motor
power factor lags behind the trip point setting in F106 for the
time set in F107, the starter will trip.
2 = Trip on Leading power factor.
If the measured motor
power factor leads beyond the trip point setting in F106 for the
time set in F107, the starter will trip.
3 = Trip on Leading or Lagging power factor
. If the
measured motor power factor lags or leads the value in F106
for the time set in F107, the starter will trip.
TRIP
0
0.5
1.0
0
Lead
Lag
0.5
Working
TRIP
0
0.5
1.0
0
Lead
Lag
0.5
Working
TRIP
0
0.5
1.0
0
Lead
Lag
0.5
Working
TRIP
PF