Amtech
6-84
6
1%
t
Zero Speed
C305
C306: 4-20mA Reference Loss
This parameter configures the AC DRIVE’s response to a failure or fault of the 4-20mA frequency
reference input signal. The various options are as under.
1: No action at fault detection
2: Minor fault alarm and run at Minimum Speed
3: Minor fault alarm and run at Maximum Speed
4: Minor fault alarm and run at set speed
5: Minor fault alarm and run at preset speed-1
6: Fault, ramp down to stop
7: Fault, coast to stop
C307: Output Phase Loss Selection
When enabled, AC DRIVE will trip in the following condition. If the output current of any one phase is
<5% and the other two-phase current is >70% (factory set) of motor rated current for five cycles. This
fault will not occur during speed search operation. It can be disabled using C307. Note that this fault
will not occur if the output terminals are open circuit.
C308: Timer Output Control Selection
This parameter decides the status of the Timer Output option of the programmable sequence output.
When set to “0”, the programmable sequence output will be ON only when AC DRIVE is ON. When
set to “1”, it will be ON whenever power is applied.
t
Run
M105
Timer Output
C309
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