WEG CFW700, Programming And Troubleshooting Manual

Page: 130 / 223

12
Functions Common to all the Control Modes
12-22 | CFW700
12.8 SEARCH OF ZERO OF THE ENCODER
The zero search function attempts to synchronize the minimum counting or the maximum counting visualized in
the parameter P0039 - Encoder Pulse Counter, with the pulse of zero of the encoder.
The function is activated by setting P0191=1. It will just be executed once, when happening the first zero pulse
after the activation of the function.
Among the actions accomplished are: the parameter P0039 is reduced to zero (or fitting with the value of 4xP0405),
and the parameter P0192 starts to indicate P0192=Completed.
P0191 – Encoder Zero Search
Adjustable
Range:
0 = Inactive
1 = Active
Factory
Setting:
0
Properties:
Access groups
via HMI:
Description:
On the inverter initialization, the parameter P0191 starts on zero. By setting to one, it activates the operation of the zero
search function, while the parameter P0192 stays on zero (Inactive).
P0192 – Encoder Zero Search Status
Adjustable
Range:
0 = Inactive
1 = Finished
Factory
Setting:
0
Properties: ro
Access groups
via HMI:
READ
Description:
On the inverter initialization, this parameter starts on zero.
When the value is changed to 1 (Finished), it indicates that the zero search function was executed, and this
function returns to the state of Inactive, although P0191 continues equal to one (Active).