Hitachi Vector Control with the SJ300 Inverter

(5-1) Example of parameter settings for Master-Slave control
<How to achieve speed 5 : 1 between master and slave>
Set value
Code Function
Master Slave
Remarks
[A044] Main Control mode 05 (V2) 05 (V2)
[P011] Encoder pulse (ppr) 1,024 1,024
[P012] Vector control mode 00 (ASR) 01 (APR)
[P013]
Mode of the pulse train
input
* *
Depends on the
encoder
[P014]
Stop position while
orientation
60 - 15 pulses * 4 = 60
[P015] Speed while orientation 3.00 Hz -
[P016] Direction of orientation 00 (FW) -
[P017]
Orientation completion
range
20 - 5 pulses * 4 = 20
[P019]
Position of an electronic
gear
- 01 (REF side) (Note 1)
[P020]
Numerator of an
electronic gear
- 1,024 (Note 1)
[P021]
Denominator of an
electronic gear
- 5,120 1,024 * 5 (Note 1)
[P022]
Feed forward gain
(FFWG)
- Depends
[P023] Position loop gain (G) - Depends
(Note 1)
Common condition :
s Encoder = 1,024 ppr for both master and
slave motor
s Master is driven by ASR
s Master is stopped by positioning (3Hz of
orientation speed)
s Master stops 15 pulses after a Z pulse is
given during orientation (3 pulses for the
slave)
s Both master and slave motors stop at the
same time.
s Orientation completion range is 5 pulses
STAT
ORT
ON
ON
Motor
speed
Master
slave
Orientation
mode
Based on the
set ramp time
N/D
REF
FB
G (P023)
Gf (P022)
+
-
+
+
APR
[P019]=01
(REF side)
5
1
N [P020] = 1024
D [P021] = 1024 x 5 = 5120
Fig 11. Electronic gear of APR control
Motor
P24
Master SJ300
ORT
SAP
SAN
SBP
SBN
AP
AN
BP
BN
EAP
EAN
EBP
EBN
EZP
EZN
EP5
EG5
Motor
P24
STAT
SAP
SAN
SBP
SBN
AP
AN
BP
BN
EAP
EAN
EBP
EBN
EZP
EZN
EP5
EG5
SJ-FB SJ-FB
Slave SJ300
Fig 12. Wiring and timing chart example of Master-Slave control