8 Manual Control
8.1 Mechanical Zero Return Control
136
FX
3U
-20SSC-H Positioning Block User's Manual
Note
• The zero return command is not accepted if the zero-point pass signal servo status is OFF.
Before executing zero return, be sure to rotate the servomotor at least once to turn the zero-point pass
signal ON. The zero-point pass signal turns ON when the motor passes the motor reference position signal
(Z-phase).
To execute zero return immediately after power-on, specify "1: Motor Z-phase pass unnecessary after
power-on" (default setting) at servo parameter function selection C-4. With this setting, the zero-point pass
signal turns ON even if the motor does not pass the zero-point (Z-phase).
• With the simultaneous start flag ON, the X-axis mechanical zero return command simultaneously starts the
X and Y-axes mechanical zero return operation.
(The 20SSC-H ignores the Y-axis mechanical zero return command.)
Precautions when setting the DOG input logic
An incorrect DOG input logic state will disable the correct operation. Pay close attention when changing the
initial setting value.
BFM Number
Data type
X-axis
Y-axis
DOG type mechanical zero
return operation
Zero return mode
BFM #14031 = K0
BFM #14231 = K0
Positioning parameters
Use/ not use FLS, RLS signal
servo amplifier
External input selection BFM #14044 b0
BFM #14244 b0
Positioning parameters
Use/ not use DOG signal of
servo amplifier
External input selection BFM #14044 b1
BFM #14244 b1
Positioning parameters
FLS/RLS signal logic of servo
amplifier
External input selection BFM #14044 b8
BFM #14244 b8
Positioning parameters
DOG signal logic of servo
amplifier
External input selection BFM #14044 b9
BFM #14244 b9
Positioning parameters
Acceleration time 2 (Ver. 1.30 or later)
BFM #14108
BFM #14308
Positioning parameters
Deceleration time 2 (Ver. 1.30 or later)
BFM #14110
BFM #14310
Positioning parameters
X-DOG
-
-
Input terminal (20SSC-H)
Y-DOG
-
-
Input terminal (20SSC-H)
X-axis forward rotation limit 1 (LSF)
-
-
Input terminal (PLC)
X-axis reverse rotation limit 1 (LSR)
-
-
Input terminal (PLC)
Y-axis forward rotation limit 1 (LSF)
-
-
Input terminal (PLC)
Y-axis reverse rotation limit 1 (LSR)
-
-
Input terminal (PLC)
X-axis forward rotation limit 2 (FLS)
-
-
External signal
(servo amplifier)
X-axis reverse rotation limit 2 (RLS)
-
-
External signal
(servo amplifier)
Y-axis forward rotation limit 2 (FLS)
-
-
External signal
(servo amplifier)
Y-axis reverse rotation limit 2 (RLS)
-
-
External signal
(servo amplifier)
Forward rotation limit (LSF)
[Forward rotation limit 1]
Operation command 1
BFM #518 b2
BFM #618 b2
Control data
Reverse rotation limit (LSR)
[Reverse rotation limit 1]
Operation command 1
BFM #518 b3
BFM #618 b3
Control data
Mechanical zero return
command
Operation command 1
BFM #518 b6
BFM #618 b6
Control data
Simultaneous START flag
Operation command 1
BFM #518 b10
Control data
Acceleration/deceleration time
change command
(Ver. 1.30 or later)
Operation command 2
BFM #519 b5
BFM #619 b5
Control data
Current address (user)
BFM #1,#0
BFM #101,#100
Monitor data
Current address (pulse)
BFM #3,#2
BFM #103,#102
Monitor data
Zero return complete
Status information
BFM #28 b3
BFM #128 b3
Monitor data
Positioning completion
Status information
BFM #28 b6
BFM #128 b6
Monitor data
Zero phase passed
Servo status
BFM #63 b0
BFM #163 b0
Monitor data
Function selection C-4
Servo parameters
(Advanced setting)
BFM #15080
BFM #15280
Servo parameters