Goodrive270 series VFD for fan and pump Basic operation guidelines
-120-
Output terminal status at
present fault
Digital output terminal
status
5.5.13 Simple PLC
Simple PLC is a multi-step speed generator, and the VFD can change the running frequency and
direction automatically based on the running time to fulfill process requirements. Previously, such
function was realized with external PLC, while now, the VFD itself can achieve this function.
The VFD can realize 16-step speed control, and provide four groups of acceleration/deceleration time
for choose.
After the set PLC completes one cycle (or one step), one ON signal can be output by the multifunction
relay.
Setup of running
parameters of each
PLC stage
Restart running
after the first
section
Continue running at
the frequency when
interruption occurred
Stop after running
once
Keep running with
the final value after
running once
Cyclic running
0
1
2
P10.00 (Simple PLC mode)
PLC mode
0
1
0
1
0
1
Normal running
P10.01 (Simple PLC memory selection)
Without power-
failure memory
With power-
failure
memory
P10.36
(PLC restart mode)
P17.00
Power failure during
running
Terminal function 23
Simple PLC stop reset
Set frequency
Digital output 16
Simple PLC state completed
Digital output 17
Simple PLC cycle completed