(3-2) Example of positioning under speed control mode (ASR) on SJ300 with SJ-FB
(3-2-1) Example of wiring
(3-2-2) Example of parameter settings
No. Code Contents Set value Remarks
1 A044 Control method 05 V2 (closed loop control)
2 P011 ppr of the encoder 1024 Depends on the encoder
3 P012 Control mode 00 ASR (Speed command base on speed)
4 P013 Mode of the pulse train input - No need to care because this is ASR mode
5 P014 Stop position while orientation * When you want to stop at n pulses after
catching zero-pulse (after AZP/N is given);
[P014] = 4096 * n / [P011]
<Regardless the ppr of an encoder>
Stop at 300 pulses after Z pulse is given
for example;
[P014] = 4096 * 300 / 1024 = 1200
6 P015 Speed while orientation 2.0 In case of 2.0Hz for orientation speed.
7 P016 Direction of orientation 00 In case of FW rotation
8 P017 Orientation completion range * Allowable deviation of positioning.
[P017] = n
o
* 4
9 A001 Frequency command from; 01 Terminal (O-L input)
10 A002 RUN command from; 02 “RUN” key of the operator
11 F002 Acceleration time 3.0
F003 Deceleration time 3.0
As short as the system allows.
Above are the main parameters to get position control. You have to adjust other parameters ([H***] parameters)
to get good performance.
Œ Material M passes “SWO” point.
(“SWO” turns ON which means an inverter is going into an
orientation mode.)
•
Belt speed will be an orientation speed (set in
[P015]), which means it is ready for positioning
and wait for a Z pulse.
Ž After passing SWZ point, inverter starts counting the pulses
and stops at a certain position (set in [P017]).
• Inverter gives out a “positioning completion signal ; POK” from
an intelligent output terminal.
EAP
EAN
EBP
EBN
EZP
EZN
Encoder
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