5 power control function, 5 power control function [ u u c ] -10, Trcl]. /.) – Toshiba VF-SX User Manual
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11-10
TOSHIBA
Further information about the
[ i ~ t i ~ ]
function:
1. Retry will NOT occur when the LED display show the following trip conditions:
O C R
: Phase overcurrent (IGBT) trip during starting.
O C L
:
Load side overcurrent (output terminal check) at start-up.
E
:
Emergency Stop
E E P
:
EEPROM abnormality
E r r
E :
RAH abnormality
E r r 3
:
ROM abnormality
2. During retry preparation, the trip cause and [/”
E
f ~ 0 ]
will display
alternately on the LED display.
3. The fault detection signal (FL) will turn ON during retry.
4. The intervals shown above may be longer if there is an error remaining after
the initial fault is cleared. The retry will be carried out after the last
error or fault is removed. All errors must be cleared before this function
initiates.
5. Retry will not be carried out when trip retention is selected
([trCL]. /.)
6. Use a latched type emergency stop switch (EX-CC). Emergency stop will not
be executed during retry preparation if a momentary contact control system
is used.
11.5 Power Control Function
This parameter enables the drive to continue operation by using the regenerative
energy from the motor when a momentary power interruption occurs. There are some
cases when continuous operation is not possible due to the driven machines’s
inertia or load status, so use this feature in combination with the retry
function.
TABLE 11-6: POKER CONTROL FUNCTION PARAMETERS
1
l U u C ]
Value
Function
0
Power control function not used.
1
Power control function used.
The power control function will activate in response to power interruptions up
to 100 msec. long.