6. MODBUS REGISTERS
6 - 28
(2) Bit definition of Status DO 2
Bit Symbol
Description
0 S_ZPASS
Z-phase already passed
0: Z-phase unpassed after start-up
1: Z-phase passed once or more after start-up
1
The value at reading is undefined.
2
3 S_ZSP
Zero speed state
S_ZSP turns on when the servo motor speed is zero speed or less. Zero speed can be changed with [Pr.
PC17].
4 S_VLC
Limiting speed
S_VLC turns on when speed reaches a value limited with any of [Pr. PC05 Internal speed limit 1] to [Pr.
PC11 Internal speed limit 7].
This turns off when SON (Servo-on) turns off.
5
The value at reading is undefined.
6
7
8 S_PC
Under proportional control
S_PC turns on under proportional control.
9
The value at reading is undefined.
10
11
12
13
14
15 S_ZP2
Home position return completion 2
When a home position return completes normally, S_ZP2 turns on. S_ZP2 is always on unless the home
position is erased.
In the incremental system, it turns off with one of the following conditions.
1) [AL. 69 Command error] occurs.
2) Home position return is not being executed.
3) Home position return is in progress.
If a home position return completes once in the absolute position detection system, S_ZP2 is always on.
However, it will be off with one of the conditions 1) to 3) or the following.
4) The home position return is not performed after [AL. 25 Absolute position erased] or [AL. E3 Absolute
position counter warning] occurred.
5) The home position return is not performed after the electronic gear ([Pr. PA06] or [Pr. PA07]) was
changed.
6) The home position return is not performed after the setting of [Pr. PA03 Absolute position detection
system selection] was changed from "Disabled" to "Enabled".
7) [Pr. PA14 Rotation direction selection/travel direction selection] was changed.
8) [Pr. PA01 Operation mode] was changed.
This bit will be enabled in the profile mode.
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