19 July 2022
ATV61/71 or ATV630/930 command switching. Product Line:
Altivar 61, Altivar 71, Altivar Process Environment:
All serial numbers Cause:
When profile on the ATV61/71 or ATV630/930 VFDs is programmed to Separate or IO profile, the speed reference and the start/stop command can come from different channels.
Command switching allows the VFD to switch between Command Channel 1 and Command Channel 2
The parameter can be accessed if [Profile] (CHCF) = [Separate] (SEP) or [I/O profile] (IO) [Cmd switching]
[ch1 active] (Cd1)
Cd1 [ch1 active]
(Cd1): [Cmd channel 1] (Cd1) active (no switching)
Cd2 ch2 active]
(Cd2): [Cmd channel 2] (Cd2) active (no switching) [LI1]
(...): See the assignment conditions in Programming manual (not CDOO to CD14).
If the assigned input or bit is at 0, channel [Cmd channel 1] (Cd1) is active.
If the assigned input or bit is at 1, channel [Cmd channel 2] (Cd2) is active.