www.dadehpardazan.ir 88594014-15
5 Operation
5.2.4 Overtravel
5-8
(2) Overtravel Function Setting
Parameters Pn50A and Pn50B can be set to enable or disable the overtravel function.
If the overtravel function is not used, no wiring for overtravel input signals will be required.
A parameter can be used to re-allocate input connector num
ber for the P-OT and N-OT signals. Refer to 3.3.1
Input Signal Allocations for details.
(3) Servomotor Stopping Method When Overtravel is Used
There are three servomotor stopping methods when an overtravel is used.
• Dynamic brake
By short-circuiting the electric circuits, t
he servomotor comes to a quick stop.
• Decelerate to a stop
Stops by using emergency stop force.
• Coast to a stop
Stops naturally, with no control, by using the fricti
on resistance of the servomotor in operation.
After servomotor stopping, there are two modes.
• Coast mode
Stopped naturally, with no control, by using the friction resistance of the servomotor in operation.
• Zero clamp mode
A mode forms a position loop by using the position reference zero.
The servomotor stopping method when an overtravel (P-OT
, N-OT) signal is input while the servomotor is
operating can be set with parameter Pn001.
• A servomotor under force control cannot be decelerated to
a stop. The servomotor is stopped with the
dynamic braking (DB) or coasts to a stop according to the setting of Pn001.0. After the servomotor stops,
the servomotor will enter a coast state.
• For details on servomotor stopping methods after the
/S-ON (Servo ON) signal turns OFF or an alarm
occurs, refer to 5.2.6 Stopping Servomotors after /S-ON Turned OFF or Alarm Occurrence.
Parameter Meaning
When
Enabled
Classification
Pn50A
n.2
[Factory setting]
Inputs the Forward Run Prohibited (P-OT) signal from
C
N1-42.
After restart Setup
n.8
Disables the Forward Run Prohibited (P-OT) signal.
Allows constant forward movement.
Pn50B
n.
3 [Fac-
tory setting]
Inputs the Reverse Run Prohibited (N-OT) signal from
CN1-43.
n.
8
Disables the Reverse Run Proh
ibited (N-OT) signal.
Allows constant r
everse movement.
Parameter Stop Method
Mode After Stop-
ping
When Enabled Classification
Pn001
n.00
[Factory setting]
DB
Coast
After restart Setup
n.01
n.02 Coast
n.1
Deceleration to a stop
Zero clamp
n.2 Coast
To Next Page
Loading...
Need help?
General
