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MDS-D-SVJ3/SPJ3 Series Instruction Manual
3-2 Setting the initial parameters for the servo drive unit
For MPI scale, set the following parameters depends on the number of poles.
【#2217(PR)】 SV017 SPEC1 Servo specification 1
bit 8 : mp MPI scale pole number setting
0: 360 poles 1: 720 poles
(3) Setting of the mounting polarity of the machine side detector
Since the mounting polarity may not be judged from the detector appearance, confirm the mounting
polarity of the machine side detector after the mounting.
If "Motor end FB" or "Machine end FB" on the NC drive monitor screen changes to the opposite polarity
when the axis is moved, set"SV017/bit4" to "Reverse polarity".
【#2217(PR)】 SV017 SPEC1 Servo specification 1
bit 4 : sdir Sub side detector feedback
0: Forward polarity 1: Reverse polarity
(4) Setting of the machine side detector alarm detection
When using a rectangular wave linear scale, set the following parameters.
【#2235】 SV035 SSF4 Servo function 4
bit 7 : ckab No signal detection 2
Set this to use rectangular wave output linear scale.
This enables the detection of No signal 2 (alarm 21).
0: Disable 1: Enable
【#2398】 SV198 NSE No signal 2 special detection width
Set the special detection width for the no signal 2 (alarm 21).
When "0" is set, the detection will be performed with a 15μm width.
For MDS-D-SVJ3, this parameter setting is invalid and the detection width is fixed to 15μm.
---Setting range---
0 to 32767 (μm)