Yaskawa FSP Amplifier - Manual (Page 72)

FSP Amplifier User’s Manual Chapter 5: Parameter Settings and Functions
5-5
5.1.2. Setting the Overtravel Limit Function
The overtravel limit function forces movable equipment parts to stop if
they exceed the allowable range of motion.
„ Using the Overtravel Function
To use the overtravel function, connect the overtravel limit switch input
signal terminals shown below to the correct pins of the servo amplifier
CN1 connector.
Input Ö P-OT CN1-42
Forward Run Prohibited
(Forward Overtravel) Speed, Torque, and Position
Control
Input Ö N-OT CN1-43
Reverse Run Prohibited
(Reverse Overtravel) Speed, Torque, and Position
Control
Connect limit switches as shown below to prevent damage of equipment
during linear motion.
Reverse rotation end
Servomotor
Forward rotation end
FSP Amplifier
CN1-43
P-OT
N-OT
CN1-42
The drive status with an input signal ON or OFF is shown in the following
table.
Signal State Input Level Description
ON CN1-42: low
Forward rotation allowed, (normal
operation status).
P-OT
OFF CN1-42: high
Forward rotation prohibited
(reverse rotation allowed).
ON CN1-43: low
Reverse rotation allowed, (normal
operation status).
N-OT
OFF CN1-43: high
Reverse rotation prohibited
(forward rotation allowed).
„ Enabling/Disabling Input Signals
Set the following parameters to specify whether input signals are used for
overtravel or not. The default setting is 8, “NOT USED.”
Parameter Signal Setting Control Mode
Pn50A.3
P-OT Signal Mapping
(Forward Run Prohibit Input
Signal)
Default Setting: 8
Speed, Torque, and
Position Control
Pn50B.0
N-OT Signal Mapping
(Reverse Run Prohibit Input
Signal)
Default Setting: 8
Speed, Torque, and
Position Control