BENSHAW RediStart MX3 Series, User Manual

Page: 102 / 238

94
6 - PARAMETER DESCRIPTION
Description If the MX
3
detects a one cycle, average current that is less than the level defined, an under current alarm
condition exists and any relays programmed as alarm will energize. 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
any relay programmed as fault relay changes state.
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 (PFN04) on page 94.
Auto Reset parameter (PFN23) on page 102.
Controlled Fault Stop Enable parameter (PFN25) on page 103.
Relay Output Configuration parameters (I/O 10 - 15) on page 112
Under Current Trip Delay Time PFN 04
LCD Display
Range Off, 0.1 – 90.0 seconds (Default 0.1)
Description The Under Current Trip Delay Time parameter sets the period of time that the motor current must be less than
the Under Current Level (PFN03) 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 "Under Current" until the current rises.
See Also Under Current Level parameter (PFN03) on page 93.
Auto Reset parameter (PFN23) on page 102.
Controlled Fault Stop Enable parameter (PFN25) on page 103.
Relay Output Configuration parameters (I/O 10 - 15) on page 112.
Current Imbalance Trip Level PFN 05
LCD Display
Range Off, 5 – 40 % (Default 15%)
PFN: Undr Cur Tim
04
0.1 sec
PFN: Cur Imbl Lvl
05
15%
Alarm
Condition
Fault
Trip
% Current
Under Current Trip
Delay Time
PFN 04
Under Cur Level
PFN 03
Time
Motor FLA
QST 01