HD2 Series Inverter Basic Operation Guidelines
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enable digital positioning cycle)
6. Commissioning procedure for positioning of photoelectric switch
Photoelectric switch positioning is to realize positioning function based on closed-loop vector control.
Directdeceleration positioning
Frequency
Running command
Photoelectric switch
arrival signal
Cyclic positioning
enable signal
Positioning completion
signal
Constant speed+
deceleration positioning
Directdeceleration positioning
Constant speed+
deceleration positioning
Time
Step 1–4: These four steps are the same with the first four steps of the commissioning procedures for
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. You 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. 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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