Two wire operation in ACS 850 Drive
The application requires start, stop of acs 850 VFD using selecter switch in two wire
operation during power cycle the VFD starts the motor inspite of the start command.
is there any possibilities such that motor does not run after power cycle even in presence of start command unles user swiches off and on the selecter switch.
now the problem it's clear.
IMHO, if you need to have the sure that after power ON the drive is stopped, you can choose one different mode of operation in parameter group 10, for example 10.01 select mode of operation 3 wire.
With DI 1 ( normal open button) you assign the start of the drive, with DI2 (normal closed button you assign the stop of the drive).
After power on, the drive start only if you made one new action with the DI1 signal.
Hope this help you
I have one quick suggestion:
try to enable the parameter 10.19.
By default, this parameter is set to zero.
If you change this bit from 0 to 1, after the power ON the drive need one new rising edge at the DI1 to start again the drive.
Hope this help you, let us now about the result