Forward Rotation Limit 2 (Fls) And Reverse Rotation Limit 2 (Rls) [Servo Amplifier Side]; Forward Rotation Limit 1 (Lsf) And Reverse Rotation Limit 1 (Lsr) [Plc Side] - 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 side]
Connect forward rotation limit 2 (FLS) and reverse rotation limit 2 (RLS) to the upper limit (FLS) and lower
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. Connect for safety.
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 limit (FLS) and lower
limit (RLS) external signal terminals of the servo amplifier, respectively.
2. Servo amplifier external signal setting
Specify the following for the external signal of the servo amplifier.
External signal
selection
3. Restarting method
Refer to the following.
7.3.2

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

For retraction with the PLC during use of the DOG search function in zero return or upon activation of a
forward or reverse rotation limit switch in modes other than the zero return operation, these limit switches are
necessary.
Provide at a position so that activation is caused before forward rotation limit 2 or reverse rotation limit 2
connected to the servo amplifier.
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 of 20SSC-H, respectively.
3. Restarting method
Refer to the following.
44
→ For the related parameters, control data and monitor data, refer to Section 7.11
Selection of FLS/RLS signal
Logic of FLS/RLS signal
→ For the related parameters, control data and monitor data, refer to Section 7.11
7.3 Handling the Forward Rotation Limit and Reverse Rotation Limit
→ For the wiring method, refer to the servo amplifier manual
Description of setting
Use the forward/reverse rotation limit of the servo amplifier and PLC.
NC contact (servo amplifier)
→ Refer to Section 7.3 (on the previous page)
→ Refer to the FX
→ Refer to Section 7.3 (on the previous page)
7 Before Starting Positioning Operation
→ Refer to the FX
Hardware Manual.
3U
Hardware Manual.
3UC
→ Refer to Chapter 13