Mitsubishi Electric iQ-F Series User Manual page 58

Synchronous encoder via servo amplifier
There are restrictions in the function and the encoder that can be used by the version of the servo amplifier.
■Setting method
Used to use a synchronous encoder connected to the servo amplifier which supports the scale measurement mode as a
synchronous encoder axis.
The following servo amplifiers can be used. The servo amplifier must support the scale measurement function.
• MR-J4-B-RJ
Only a rotary encoder can be connected. Refer to the following servo amplifier instruction manuals for the version of the servo
amplifier which supports the scale measurement function and the rotary encoder which can be used.
SSCNET/H Interface AC Servo MR-J4-_B_(-RJ) Servo Amplifier Instruction Manual
A synchronous encoder connected to the specified servo amplifier axis can be used by the following settings.
Setting item
Synchronous encoder axis
setting
Encoder type setting (Absolute/
Incremental)
*1 The range from axis 1 to 4 is valid in the 4-axis module and from axis 1 to 8 is valid in the 8-axis module.
When "1_ _ _H" is set in the servo parameter "Scale measurement mode selection (PA22)", the synchronous encoder axis
current value and the synchronous encoder axis current value per cycle are restored after the servo amplifier axis is
connected. Therefore, connection becomes valid, and will be on the counter enabling status. (The current value setting by
current value change is required beforehand.)
When "2_ _ _H" is set in the servo parameter "Scale measurement mode selection (PA22)", "0" is set to the initial value of the
synchronous encoder axis current value and the synchronous encoder axis current value per cycle after the servo amplifier
axis is connected. Therefore, connection becomes valid, and will be on the counter enabling status.
If the corresponding servo amplifier axis is not connected, the connection of the synchronous encoder axis will be invalid.
When "1_ _ _H" is set in the servo parameter "Scale measurement mode selection (PA22)" and the
synchronous encoder movement amount (encoder pulse units) on disconnection or during the power supply
OFF exceeds "2147483647" or "-2147483648", the synchronous encoder axis current value is restored with
its opposite sign.
2 INPUT AXIS MODULE
56
2.3 Synchronous Encoder Axis
Setting method
Set "101 to 108: Synchronous encoder via servo amplifier (Connectable servo amplifier: axis 1 to axis 8
Synchronous encoder axis type".
[Setting method of Simple Motion Module Setting Function]
Set the synchronous encoder axis parameter according to the setting below.
• "[Pr.320] Type"
101: Synchronous encoder via servo amplifier
• "[Pr.320] Axis No. of connected servo amplifier"
Axis No. of servo amplifier to connect
Set the servo parameter "Scale measurement mode selection (PA22)" according to the setting below.
0_ _ _H: Disabled
1_ _ _H: Used in absolute position detection system
2_ _ _H: Used in incremental system
[Setting method of Simple Motion Module Setting Function]
Set "ABS" or "INC" from the "External synchronous encoder input" list of the amplifier setting dialog.
(The amplifier setting dialog can be opened from the "System Configuration" window in the "System Setting".)
*1
)" in "[Pr.320]