Frequently asked questions

FA277045

28 September 2021

Issue: 
ATV61/71 command switching.
 
Product Line:
Altivar 61, Altivar 71
 
Environment:
All serial numbers
 
Cause:
N/A
 
Resolution:
When profile on the ATV61/71 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] (LI1)
   to
: [LI6] (LI6)

 [...] (...): See the assignment conditions on page 118 (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.