Amtech Axpert-Eazy Series Instruction Manual page 100

GROUP – 3: START / STOP SELECTION & DC BRAKING
A301: Start Control
The AC DRIVE can be started from Local (Digital Operation Panel), Terminal or Serial irrespective of
the frequency reference input. However, the direction will be decided as per the start control selection
only. When the start control is Local, the direction can only be changed through Digital Operation
Panel. The same applies to other selections also.
If in running condition, start control is changed from Local to Terminal, the operation will continue as
per the status of the new selection. For example, present selection is Local. Now if in running
condition, the selection is changed to Terminal. If RUN signal is present in terminal mode, the AC
DRIVE will continue running. If RUN signal is absent, the AC DRIVE will stop. When the selection is
changed from Terminal to any other mode (Local or Serial), AC DRIVE will continue its operation as
per the status of Terminal and not as per the new selection (Local or Serial).
The drive will accept the stop from Terminal only, if A301=2 (Terminal) is set. It will not stop from
Local (Digital Operation Panel) or Serial.
The drive will accept the stop from local (Digital Operation Panel) or Serial if A301=1 or 2 is set. In this
case, the drive will not stop from Terminal.
A302: Maintained Start / Stop
When using Terminal as start control (A301=2), this parameter gives the choice of having maintained
6
or momentary contacts for start or stop.
If A302=0: The start / stop control is maintained type as described in below figure.
RUN
COM
If A302=1: The start / stop control is momentary type as described in below figure.
RUN
STOP
COM
A303: Start Delay Time (Sec)
The motor will be delayed start from the run command by the set time. This is used for
synchronization with peripheral machines such as mechanical brakes. The start command can be
from Digital Operation Panel (keypad), Terminal or Serial.
The start delay time is also applicable to Jog Select input.
A304: Stop Mode
This parameter allows the user to select the stop mode. If A304=0 selected, the output will ramp down
to stop with deceleration time after the stop command and then applying the dc brake (if programmed)
to stop. If A304=1 selected, the output will be turned off simultaneously with the stop command. The
dc braking will not be applicable in this mode. The motor will stop depending on its inertia.
When stop key is pressed for 2.5 seconds or longer during operation, the drive will coast to stop
regardless of Local or Terminal start control.
Amtech
6-54
Output frequency
RUN
Output frequency
RUN
STOP