Simple Position Control; Feedback Settings For Simple Position Control - Omron MX2 Series User Manual

6 Vector Control and Applied Functions
6-7

Simple Position Control

The 3G3MX2-V1 Series Inverter can perform simple position control with the pulse train input function
included as standard.
This control mode enables positioning to a maximum of eight target positions based on the feedback of
the Phase A and B 90°phase difference pulse train from the encoder etc.
Using the communications functions to specify the target position realizes more extensive control.
The 3G3MX2-V1 Series Inverter provides additional functions such as current position preset, position
store selection at power off, restarting positioning, and interlock function with simple position control
and brake control.
This section describes the wiring, settings, and functions of the simple position control.
6-7-1

Feedback Settings for Simple Position Control

Set the position feedback data necessary for simple position control.
• The simple position control function is available only for the 1st control. It will not work if you switch to
the 2nd control.
• Set the Pulse Train Input RP Selection (P003) to 01 (Feedback pulse).
• Set the type of the input pulse train signal in the Pulse Train Input Type Selection (P004) and the
number of pulses per motor rotation (×1 multiplication) in the Number of Encoder Pulses (P011),
respectively.
• If you set the Pulse Train Input Type Selection (P004) to 01 or 03, also set the Multi-function Input S7
Selection (C007) to 85 (EB: Rotation direction detection). The setting "85 (EB: Rotation direction
detection)" is available only in the Multi-function Input S7 Selection (C007).
When C007 is set to 85 (EB: Rotation direction detection), the Multi-function Input S7 Operation
Selection (C017) is disabled.
The terminal EB, once set, serves as the phase-B input for Phase A and B 90°phase difference pulse
train (P004 = 01), or the direction signal for Single-phase pulse train + direction (P004 = 03).
If C007 is not set to 85 (EB: Rotation direction detection) when P004 is 01 or 03, the inverter cannot
recognize the feedback information correctly, which causes the simple position control to malfunc-
tion.
Parameter
No.
Pulse Train Input RP Selec-
P003
tion
Pulse Train Input Type Selec-
P004
tion
P011 Number of Encoder Pulses
Multi-function Input S7 Selec-
C007
tion
6 - 28
Function name
01:
00:
01:
02:
03:
32. to 1024. (×1 multiplication)
85:
Multi-function Compact Inverter 3G3MX2-V1 User's Manual (I585-E1)
Data
Feedback pulse (enabled only
when 1st control is selected)
Single-phase pulse train
Phase A and B 90°phase differ-
ence pulse train
Do not set.
Single-phase pulse train + direc-
tion
EB (Rotation direction detection)
Default
Unit
data
−
00
−
00
512. pulse
−
06