YASKAWA Sigma II Series User Manual page 72

Sigma II User's Manual
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.
n
Using the Overtravel Function
To use the overtravel function, connect the overtravel limit switch input signal termi-
nals shown below to the correct pins of the servo amplifier CN1 connector.
Input ð P-OT CN1-42
Input ð N-OT CN1-43
Connect limit switches as shown below to prevent damage to the devices during lin-
ear motion.
Drive status with an input signal ON or OFF is shown in the following table.
Signal
P-OT
N-OT
Forward Run Prohibited
(Forward Overtravel)
Reverse Run Prohibited
(Reverse Overtravel)
Reverse rotation end
Servomotor
Limit
switch
State Input Level
ON CN1-42: low
OFF CN1-42: high
ON CN1-43: low
OFF CN1-43: high
Chapter 5: Parameter Settings and Functions
Speed/Torque Control,
Position Control
Speed/Torque Control,
Position Control
Forward rotation end
Limit
switch
Servo Amplifier
P-OT
CN1-42
N-OT
CN1-43
Forward rotation allowed, (normal
operation status).
Forward run prohibited (reverse rota-
tion allowed).
Reverse rotation allowed, (normal
operation status).
Reverse run prohibited (forward rota-
tion allowed).
5-5
Description