Pulse Train Position Control Mode - Hitachi SJ700B Series Instruction Manual

(Control block diagram)
Speed limit

4.3.6 Pulse train position control mode

- To use this function, specify "05" (V2) for V/F characteristic curve selection, 1st motor (A044) and "01"
(pulse train position control mode) for the control pulse setting (P012).
- You can choose the input source of pulse train command pulse train mode setting (P013).
Item
Control pulse setting
Pulse train mode setting (*2)
Home search completion
range setting
Home search completion
delay time setting
Electronic gear set position
selection
Electronic gear ratio
numerator setting
Electronic gear ratio
denominator setting
Feed-forward gain setting
Position loop gain setting
Position bias setting
Terminal function
*1 In pulse train position control mode, the frequency value of a frequency command is calculated as
follows:
Frequency command (Hz) =
In position control mode, the setting for the acceleration and deceleration time is invalid. (The LAD
cancellation function operates automatically to ignore acceleration and deceleration patterns.) When the
position loop gain is larger, the acceleration/deceleration time is shorter.
Torque bias
ATR terminal
Torque
command input
Speed
control
(P control)
Speed
monitoring
Detected
speed
Function code Data or range of data
P012
P013
P017
P018
P019
P020
P021
0.00 to 99.99 / 100.0
P022
0.00 to 99.99 / 100.0
P023
-204 (-2048) / -999. to
P024
C001 to C008
6.4×P×Kv
×
ENC
Chapter 4 Explanation of Functions
Torque limit
If the detected speed exceeds the speed
limit, the motor speed is controlled in
proportional (P) control mode.
01 Pulse train position control mode
00 MD0: 90°-phase-shift pulse train
MD1: Forward/reverse operation
01
command with pulse train
MD2: Forward-operation pulse train with
02
reverse-operation pulse train
0. to 9999. / 1000
Equivalent to encoder quadruplex
(100000)
0.00 to 9.99 (s)
00 FB : Feed back side
01 REF : Controller side
1. to 9999.
1. – 9999.
to 655.3
(rad/s)
2048.
PCLR: Clearance of position deviation
47
data
STAT: Pulse train position command
48
input enable
P: Number of poles of the motor
⊿P
Kv: Position loop gain
ENC: Encoder pulse count
255
⊿P: Position deviation
4 - 99
Torque command
(Current control command)
Description