Forward Rotation Limit 2 (Fls) And Reverse Rotation Limit 2 (Rls) [Servo Amplifier Limit]; Forward Rotation Limit 1 (Lsf) And Reverse Rotation Limit 1 (Lsr) [Plc Side Limit] - Mitsubishi FX3U-20SSC-H User Manual

FX -20SSC-H Positioning Block User's Manual
3U
7.3.1 Forward rotation limit 2 (FLS) and reverse rotation limit 2 (RLS)
[Servo amplifier limit]
Connect forward rotation limit 2 (FLS) and reverse rotation limit 2 (RLS) to the upper stroke limit (FLS) and
lower stroke limit (RLS) external signal terminals of the servo amplifier, respectively. This limit switch should
be provided in a position to avoid causing damage to the machine after activation.
→ For sudden stop performed when the stroke limit switch turns ON in the servo amplifier,
1. Wiring the forward rotation limit 2 (FLS) and reverse rotation limit 2 (RLS)
Connect forward rotation limit 2 (FLS) and reverse rotation limit 2 (RLS) to the upper stroke limit (FLS) and
lower stroke limit (RLS) external signal terminals of the servo amplifier, respectively.
→ For terminal names and wiring in the servo amplifier, refer to the servo amplifier manual
2. Servo amplifier external signal setting
Set the external input selection (positioning parameter) as follows.
Selection of FLS/
RLS signal
External input
selection
Logic of FLS/
RLS signal
3. Restarting method
Refer to the following.
7.3.2

Forward rotation limit 1 (LSF) and reverse rotation limit 1 (LSR) [PLC side limit]

Control the operation command 1 of the 20SSC-H using a sequence program.
Provide at a position so that activation is caused before forward rotation limit 2 or reverse rotation limit 2
connected to the servo amplifier.
→ For sudden stop operation performed when the rotation limit switch turns ON, refer to Section 7.5
1. Wiring the forward rotation limit 1 (LSF) and reverse rotation limit 1 (LSR)
Connect forward rotation limit 1 (LSF) and reverse rotation limit 1 (LSR) at the input terminals of the PLC.
For details on the PLC wiring method, refer to the following respective PLC manual.
2. Specifying forward rotation limit 1 (LSF) and reverse rotation limit 1 (LSR)
Operate the forward rotation limit 1 (LSF) and reverse rotation limit 1 (LSR) connected with the PLC with the
forward rotation limit flag and reverse rotation limit flag in Operation command 1, respectively.
Forward rotation
limit (LSF)
Operation
command 1
Reverse rotation
limit (LSR)
3. Restarting method
Refer to the following.
7.3 Handling the Forward Rotation Limit and Reverse Rotation Limit
→ For parameters, control data and monitor data, refer to Chapter 11
BFM Number
X-axis Y-axis
Select "Use the forward rotation limit and reverse rotation limit in the
BFM #14044 BFM #14244
servo amplifier and PLC."
b0 b0
(Set b0 to ON.)
BFM #14044 BFM #14244 Select "N/C contact (servo amplifier)."
b8 b8 (Set b8 to ON.)
→ For parameters, control data and monitor data, refer to Chapter 11
→ For the operation command 1, refer to Subsection 11.4.10
BFM Number
X-axis Y-axis
Set this to perform a deceleration stop while outputting pulses for
BFM #518 b2 BFM #618 b2
forward rotation.
Set this to perform a deceleration stop while outputting pulses for
BFM #518 b3 BFM #618 b3
reverse rotation.
7 Before Starting Positioning Operation
→ For details, refer to Subsection 11.1.20
Description
→ Refer to Section 7.3 (on the previous page)
→ Refer to the FX
→ Refer to the FX
3UC
→ For program examples, refer to Chapter 12
Description
→ Refer to Section 7.3 (on the previous page)
refer to Section 7.5
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