AdamG8GXP
Member
Hello,
I would like to know how to properly reset fault in G120 drive over Profinet with "Fault Reset" HMI button. VFD has CU240E-2 PN control module. I am using Siemens CPU 317F-2 PN/DP.
I tried PLC not sending any control words (STW1) to VFD when a fault, bit 3 of VFD Status Word (ZSW1), is on, and turning on bit 7 (Acknowledge faults) of Control Word (STW1) to the VFD when fault is present and HMI "Fault Reset" button is touched but that didn't work.
Right now when VFD fault is present, PLC does not send setpoint and control words (STW1) to the VFD. And if fault bit in VFD is set, pressing HMI "Fault Reset" button sends 0 to setpoint word, and 7E (hex) to control word (STW1) which clears the VFD fault sometimes but not always.
I think I am missing something, like right order of setting right bits in the VFD control word.
What is the right way to clear G120 any faults over ProfiNet?
Do different G120 VFD faults have to be cleared a different way?
I would like to know how to properly reset fault in G120 drive over Profinet with "Fault Reset" HMI button. VFD has CU240E-2 PN control module. I am using Siemens CPU 317F-2 PN/DP.
I tried PLC not sending any control words (STW1) to VFD when a fault, bit 3 of VFD Status Word (ZSW1), is on, and turning on bit 7 (Acknowledge faults) of Control Word (STW1) to the VFD when fault is present and HMI "Fault Reset" button is touched but that didn't work.
Right now when VFD fault is present, PLC does not send setpoint and control words (STW1) to the VFD. And if fault bit in VFD is set, pressing HMI "Fault Reset" button sends 0 to setpoint word, and 7E (hex) to control word (STW1) which clears the VFD fault sometimes but not always.
I think I am missing something, like right order of setting right bits in the VFD control word.
What is the right way to clear G120 any faults over ProfiNet?
Do different G120 VFD faults have to be cleared a different way?