Trane TR1 6002 Installation And Operation Manual page 67

410 Function at Input Phase Loss
(MAINS IMBALANCE)
Value:
Trip (TRIP)
Autoderate & Warning (AUTODERATE & WARNING) [1]
Warning (WARNING)
Function:
This determines the action of the drive when one of the incoming power
phases is lost. Some action is required to control the level of ripple
voltage on the DC bus to avoid damage to the DC bus capacitors.
Drive display will show MAINS PHASE LOSS.
Description of choice:
At Trip, the drive stops the motor within a few seconds (depending on
drive size).
If Autoderate & Warning is selected, the drive will export a warning and
reduce the output current to 30% of maximum current to maintain
operation.
CAUTION
Input Phase Loss!
If Warning is selected, life expectancy of the
drive could be reduced if input phase loss
persists. Select Warning only when input phase
loss is known to be temporary.
At Warning, only a warning will be exported when an input phase loss
occurs, but in severe cases, other extreme conditions might result in a
trip.
For drives with software version 2.0 or later, select Autoderate &
Warning. Set parameter 412, Trip Delay Overcurrent, to OFF.
CAUTION
Overheating Hazard!
At phase loss, the cooling fan of NEMA 12 drives
cannot be powered. To avoid overheating, an
external power supply can be connected.
Contact Trane for further information. Failure
to provide fan cooling may result in equipment
damage.
✭ I
ndicates factory default setting. Numbers in brackets [ ] represent selection as displayed on the serial bus.
411
Value:
★ [0] Trip (TRIP)
Autoderate & Warning (AUTODERATE & WARNING)
[2]
Function:
Select the function to be activated when the drive is exposed to an
overtemperature condition.
Description of choice:
At Trip, the drive stops the motor and exports an alarm.
At Autoderate & Warning, the drive first reduces the switching
frequency to minimize internal loss. If the overtemperature condition
persists, the drive reduces the output current until the heat sink
temperature stabilizes. A warning is issued when the function is active.
For drives with software version 2.0 or later, select Autoderate &
Warning. Set parameter 412, Trip Delay Overcurrent, to OFF.
412
Value:
OFF or 0 to 60 sec.
Function:
When the output current has reached the current limit set in parameter
215, Current Limit, and remains there for the time selected in this
parameter, the drive will trip.
Description of choice:
Select how long the drive will run in current limit before it trips.
Function at Drive Overtemperature
(FUNCT. OVERTEMP)
Trip Delay Overcurrent
(OVERLOAD DELAY)
★ [0]
[1]
★ OFF
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