Overtravel Signals; Setting To Enable/Disable Overtravel - YASKAWA SGD7S Product Manual

5.12.1

Overtravel Signals

The overtravel signals include the P-OT (Forward Drive Prohibit) and the N-OT (Reverse Drive
Prohibit) signals.
Type Signal
P-OT
Input
N-OT
You can operate the Servomotor in the opposite direction during overtravel by inputting a refer-
ence.
When the Servomotor stops due to overtravel during position control, the position deviation is
held.
You must input the CLR (Clear) signal to clear the position deviation.
Important
Refer to the following section for information on the CLR signal.
5.12.2

Setting to Enable/Disable Overtravel

You can use Pn50A = n.X (P-OT (Forward Drive Prohibit) Signal Allocation) and Pn50B =
n.X (N-OT (Reverse Drive Prohibit) Signal Allocation) to enable and disable the overtravel
function.
You do not need to wire the overtravel input signals if you are not going to use the overtravel
function.
Parameter

n.2
(default setting)
Pn50A

n.8

n.
(default setting)
Pn50B

n.
You can allocate the P-OT and N-OT signals to other connector pins. Refer to the following
section for details.
6.1.1 Input Signal Allocations on page 6-4
Connector Pin No.
CN1-42
CN1-43
6.6.2 CLR (Position Deviation Clear) Signal Function and Settings on page 6-32
The forward overtravel function is enabled
and the P-OT (Forward Drive Prohibit) signal
is input from CN1-42.
The forward overtravel function is disabled.
Forward drive is always enabled.
The reverse overtravel function is enabled
3
and the N-OT (Reverse Drive Prohibit) signal
is input from CN1-43.
The reverse overtravel function is disabled.
8
Reverse drive is always enabled.
5.12 Overtravel and Related Settings
Signal Status
ON Forward drive is enabled (actual operation).
Forward drive is prohibited
OFF
(forward overtravel).
ON Reverse drive is enabled (actual operation).
Reverse drive is prohibited
OFF
(reverse overtravel).
Meaning

5.12.1 Overtravel Signals

Meaning
When Enabled Classification
After restart Setup
5
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