Position Control By Inverter Pulse Train Input - Mitsubishi Electric 800 Series Instruction Manual

5.5.5

Position control by inverter pulse train input

Vector Vector Vector
The simple position pulse train command can be input by pulse train input and sign signal (NP) to the JOG terminal.
Pr. Name
419 Position command
B000 source selection
428 Command pulse
B009 selection
Operation outline
• If the Pre-excitation/servo ON (LX) signal is turned ON, output shutoff is canceled and the Position control preparation
ready (RDY) signal is turned ON after 0.1 s. When STF (forward stroke end signal) or STR (reverse stroke end signal) is
turned ON, the motor rotates according to the command pulse. When the forward (reverse) stroke end signal is turned OFF,
the motor does not rotate in the corresponding direction.
Forward rotation command (STF)
Reverse rotation command (STR)
Operation ready completion (RDY)
Inverter pulse train command
Selecting the pulse train type (Pr.428 and NP signal)
• Set Pr.419 Position command source selection="2" (simple pulse train position command).
• Set "68" in any of Pr.178 to Pr.189 (Input terminal function selection) to assign Simple position pulse train sign (NP).
• Select the command pulse train with Pr.428 Command pulse selection.
Pr.428 setting Command pulse train type
Negative
0 to 2
logic
Positive
3 to 5
logic
• Select vector control to select the position control method.
NOTE
• If Pr.419= "2" (simple pulse train position command) is set, the terminal JOG is used for the simple position pulse train input
regardless of the Pr.291 Pulse train I/O selection pulse train input/output selection setting.
Initial
Setting range
value
0
0
2
0 to 2
0
3 to 5
Forward rotation
Actual rotation
Reverse rotation
Base signal
Servo on (LX)
0.1s
Sign signal (NP)
In-position (Y36)
During forward rotation
Pulse train + rotation
direction sign
Pulse train + rotation
direction sign
Position control under vector control
Description
Simple position control by point table (position command
given by setting parameters)
Simple pulse train position command given by the pulse train
input to the inverter
Pulse train + rotation
direction sign
During reverse rotation
JOG
L
NP
H
JOG
L
NP H
Negative logic
Positive logic
225
PARAMETERS
5