Technical information

5 – PARAMETER DESCRIPTIONS
60
P26 Under Current Level PFN 03
LCD Display
PFN:Undr Cur Lvl
03 Off
Range OFF, 5 – 100 % of FLA (Default OFF)
Description If the MX detects a one cycle, average RMS current that is less than the level defined, an under
current alarm condition exists and the alarm relay energizes, if defined. The under current timer
starts a delay time. If the under current still exists when the delay time expires, the starter Under
Current Trips (F34) and the fault relay de-energizes.
The Under Current Trip is only active in the UTS state, Energy Saver state, Current follower or while
in the Phase Control mode.
A relay can be programmed to change state when an under current alarm condition is detected.
See Also Under Current Time parameter on page 60
Relay Output Configuration parameters on page 70
Auto Reset parameter on page 64
Controlled Fault Stop Enable parameter on page 64
Alarm
Condition
Fault
Trip
% Current
Delay
PFN 04/P27
Under Cur Lvl
PFN 03/P26
Time
Motor FLA
QST 01/P1
P27 Under Current Time PFN 04
LCD Display
PFN:Undr Cur Tim
04 0.1 sec
Range Off, 0.1 – 90.0 seconds (Default 0.1 sec)
Description The Under Current Time parameter sets the period of time that the motor current must be less than
the Under Current Level parameter before an under current fault and trip occurs.
If OFF is selected, the under current timer does not operate and the starter does not trip. It energizes
any relay set to Undercurrent until the current rises.
See Also Under Current Level parameter on page 60
Relay Output Configuration parameters on page 70
Auto Reset parameter on page 64
Controlled Fault Stop Enable parameter on page 64