Greetings Fellow Controls Professionals,
I have a weird issue with starting a 2HP PowerFlex 525 VFD. The drive is commanded through Ethernet IP from a Micro800 PLC. I'm controlling three VFD's from this controller. When I set the PFx_2_Cmd_Start but to start the second VFD, it will not start until I alter the speed reference. VFD's 1 and 3 are fine but wired programmed the same. For example, if the speed reference is set to 21Hz and the start command bit is set to start, the VFD will not start until I enter a speed reference to anything other than 21Hz. It happens 100% of the time. Any ideas out there on what to check next? Thanks, M
I have a weird issue with starting a 2HP PowerFlex 525 VFD. The drive is commanded through Ethernet IP from a Micro800 PLC. I'm controlling three VFD's from this controller. When I set the PFx_2_Cmd_Start but to start the second VFD, it will not start until I alter the speed reference. VFD's 1 and 3 are fine but wired programmed the same. For example, if the speed reference is set to 21Hz and the start command bit is set to start, the VFD will not start until I enter a speed reference to anything other than 21Hz. It happens 100% of the time. Any ideas out there on what to check next? Thanks, M