E6581158
F-38
6
+
Protective operation detection relay signals (FLA, FLB, FLC terminal signals) are not sent during use of
the retry function. (Default setting)
+
To allow a signal to be sent to the protective action detection relay (FLA, B and C terminals) even during
the retry process, assign the function 36 or 37 to
H
.
+
A virtual cooling time is provided for overload tripping (
QN
,
QN
,
QNT
).
In this case, the retry function operates after the virtual cooling time and retry time.
+
In the event of tripping caused by an overvoltage (
QR
-
QR
), the retry function will not be activated
until the voltage in the DC section comes down to a normal level.
+
In the event of tripping caused by overheating (
QJ
), the retry function will not be activated until the tem-
perature in the inverter comes down low enough for it to restart operation.
+
Keep in mind that when
H
is set to
(trip retained), the retry function will not be performed, re-
gardless of the setting of
H
.
+
During retrying, the blinking display will alternate between
TVT[
and the monitor display specified by
status monitor display mode selection parameter
H
.
+
The number of retries will be cleared if the inverter is not tripped for the specified period of time after a
successful retry.
"A successful retry" means that the inverter output frequency reaches the command frequency without
causing the inverter to re-trip.
6.13.4 Dynamic (regenerative) braking - For abrupt motor stop
H
: Dynamic braking selection
H
: Dynamic braking resistance
H
: Dynamic braking resistor capacity
•
Function
The VFS11 does not contain a braking resistor. Connect an external braking resistor in the following
cases to enable dynamic braking function:
1) when decelerating the motor abruptly or if overvoltage tripping (OP) occurs during deceleration
stop
2) when a continuous regenerative status occurs during downward movement of a lift or the
winding-out operation of a tension control machine
3) when the load fluctuates and a continuous regenerative status results even during constant
speed operation of a machine such as a press