Speed/Position Switching - Omron MX2 Series User Manual

6 Vector Control and Applied Functions
6-7-8

Speed/Position Switching

Use this function to switch between simple position control and speed control (frequency operation).
Set the Multi-function Input S1 to S7 Selection (C001 to C007) to 73 (SPD: Speed/Position switching).
• Turn ON the SPD (Speed/Position switching) terminal to switch from simple position control to speed
control (frequency operation).
• Turn OFF the SPD (Speed/Position switching) terminal to switch from speed control (frequency oper-
ation) to simple position control.
• In the speed control (frequency operation) mode, the rotation direction depends on the RUN command.
Under simple position control/speed control, be sure to execute the RUN command according to the
direction of movement.
• The Current Position Monitor (d030) always counts feedback signals regardless of the selected con-
trol.
The inverter performs control switching based on the origin determined by the origin search function.
• To clear the current position data when the mode is switched from simple position control to speed
control, set the Multi-function Input S1 to S7 Selection (C001 to C007) to 47 (PCLR: Current position
clear) and turn ON that input terminal.
Note that the delay occurs for the response time (approximately 4 to 6 ms) of the inverter input termi-
nal.
• Switching from speed control to simple position control immediately before the target position may
cause hunting during DC injection braking. Allow a sufficient interval when switching the control.
• The speed/position switching function does not work when the Position Control Mode Selection
(P075) is set to 01 (No limit). Be sure to set this parameter to 00 (Limit).
Parameter
No.
C001 to C007
P075
Output
frequency
FW input
SPD input
*1
PCLR input
*1. To clear the current position value to zero, set the Multi-function Input S1 to S7 Selection to 47 (PCLR).
6 - 48
Function name
47:
Multi-function Input
S1 to S7 Selection
73:
Position Control
00:
Mode Selection
Current position is always counted.
Position control Speed control
Data
PCLR (Current position clear)
SPD (Speed/Position switching)
Limit
Position control
Multi-function Compact Inverter 3G3MX2-V1 User's Manual (I585-E1)
Default
Unit
data
− −
−
00
DB
Time