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2. Winder/Unwinder Operation
speed equal to 100%. For example, when APP07 (Main Spd AccT) is set to 10
sec, i.e. the factory default setting, it takes 5 sec (=10 sec * 50% / 100%) to
accelerate the main speed from 0% to 50%.
(2) Emergency Stop (Quick Stop)
If an emergency occurs in a closed loop tension control system that uses a
dancer or load cell, you can use the Quick Stop to maintain the tension and
quickly stop system operation.
This function stops inverter operation for the time specified in APP82 (Q Stop
Dec T) when the multi-function input set as “Web Quick Stop” turns ON. The
deceleration time remains constant regardless of the current output frequency of
the inverter.
For example, if inverter 1, 2, and 3 are interlocked and operating within a system
in which their current output frequency is 25 Hz, 40 Hz, and 60 Hz respectively,
these inverters all take the same decel time of 3 sec to decelerate, which is the
factory default for APP82 (Q Stop Dec T), when the multi-function input “Web
Quick Stop” turns ON.
Here, the output of the Web PID controller is effective, so the inverter output
remains uninterrupted and the tension remains constant.
Group Code number
Function
Name
Factory
default
Range
50: Web
Quick Stop
-
3.0 sec
0.1 - 300.0 sec
In
65 - 72
Px Define
Multi-function input
setting
APP
82
Q Stop Dec T
Emergency stop
decel time
APP82 (Quick Stop DecT): Maintains a constant tension during inverter
operation in a closed loop tension control system that uses a dancer or load cell
and specifies the deceleration time for emergency stops.
Caution
Even when the “Web Quick Stop” terminal block input turns ON and emergency stop is
enabled, the inverter output remains uninterrupted. After an emergency stop, make sure
that the inverter operation command turns OFF to ensure that the inverter output is
interrupted.
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