YASKAWA Sigma-V Series User Manual page 144

(1) Signals Output during Servomotor Speed Limit
The following signal is output when the motor speed reaches the limit speed.
Signal
Type
Name
Output /VLT
Note: Use parameter Pn50F.1 to allocate the /VLT signal for use. For details, refer to 3.4.2 Output Signal Allocations.
(2) Speed Limit Setting
Select the speed limit mode with Pn002.1.
Parameter
n.0
[Factory setting]
Pn002
n.1
 Internal Speed Limit Function
If the internal speed limit function is selected in Pn002.1, set the limit of the maximum speed of the servomo-
tor in Pn407. The limit of the speed in Pn408.1 can be either the maximum speed of the servomotor or the
overspeed alarm detection speed. Select the overspeed alarm detection speed to limit the speed to the maxi-
mum speed of the servomotor or the equivalent.
Speed Limit During Torque Control
Pn407
Setting Range
0 to 10000
Note: The servomotor's maximum speed or the overspeed alarm detection speed will be used when the setting in this
parameter exceeds the maximum speed of the servomotor used.
Parameter
 
n. 0
[Factory setting]
Pn408
 
n. 1
 External Speed Limit Function
If the external speed limit function is selected in Pn002.1, the motor speed is controlled by the speed limit
value (VLIM). For details, refer to the
Models User's Manual MECHATROLINK-II Commands (Manual No.: SIEP S800000 54).
Connector
Pin Number
ON (closed)
Must be allocated
OFF (open)
Meaning
VLIM (the speed limit value during torque control) is
not available. Uses the value set in Pn407 as the speed
limit (internal speed limit function).
VLIM operates as the speed limit value (external speed
limit function).
Setting Unit
-1
1 min
Meaning
 Uses the smaller value of the maximum motor speed
and the value of Pn407 as the speed limit value.
Uses the smaller value of the overspeed alarm detec-
tion speed and the value of Pn407 as speed limit value.
Σ
-V Series/DC Power Input
Setting
Servomotor speed limit being applied.
Servomotor speed limit not being applied.
Enabled
After restart
Factory Setting When Enabled
10000 Immediately
Enabled
After restart
Σ Σ
-V Series/ -V Series for Large-Capacity
4.7 Other Output Signals
Meaning
When
Classification
Setup
Torque
Classification
Setup
When
Classification
Setup
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