6-7 Simple Position Control
The 3G3MX2-EV2 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.
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 EA 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 7
Selection (C007) to 85 (EB: Rotation direction detection). The setting “85 (EB: Rotation direction
detection)” is available only in the Multi-function Input 7 Selection (C007).
When C007 is set to 85 (EB: Rotation direction detection), the Multi-function Input 7 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.
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