Frequency Inverter ST600 Series High-Performance Multifunction VFD Basic Operation Instructions
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closed-loop vector control, which aim to fulfill the control requirements of closed-loop vector control.
Step 5: Set P21.00=0021 to enable photoelectric switch positioning, the photoelectric switch signal
can be connected to S8 terminal only, and set P05.08=43, meanwhile, set P21.17, P21.11 and P21.12
(set positioning displacement) based on actual needs; set P21.21 (deceleration time of positioning),
however, when present running speed is too fast or the set positioning displacement is too small, the
deceleration time of positioning will be invalid, and it will enter direct deceleration positioning mode.
Step 6: Cyclic positioning
After positioning is done, the motor will stay in current position. Users can set cyclic positioning through
input terminal function selection (55: enable cyclic digital positioning) in P05 group; when the terminal
receives cyclic positioning enable signal (pulse signal), the motor will continue running in the set speed
as per the speed mode and re-enter positioning state after encountering photoelectric switch.
(7) Hold positioning
The position loop gain during positioning is P21.03; while the position loop gain in positioning-
completion-hold state is P21.02. In order to keep sufficient position-hold force and ensure no system
oscillation occurred, adjust P03.00, P03.01, P20.05 and P21.02.
5.5.19 Fault handling
The following provides fault handling information.
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