User Constant Settings and Functions
5.2.10 Torque Limiting by Analog Voltage Reference, Function 1
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Setting
The speed feed-forward value is set in user constant Pn300.
The factory setting of Pn300 is 600, for which a speed feed-forward value of
±
6 V will produce
the rated speed.
Pn300
Speed
Reference Input
Gain
Unit:
0.01V/Rated
Speed
Setting
Range:
150 to 3000
Factory
Setting:
600
Speed/Torque
Control,
Position Control
5.2.10 Torque Limiting by Analog Voltage Reference, Function 1
Torquelimiting byanalog voltagereference limitstorque byassigning atorque limitin ananalog
voltage to the T-REF terminal (CN1-9 and 10). It cannot be used for torque control because the
torque reference input terminal T-REF is used as an input terminal.
Pn300
Integration
(Pn101)
Speed loop
gain
(Pn100)
+
+
+
--
Speed feedback
Pn400
Torque limit value
Speed reference
T-REF
V-REF
Torque
reference
Pn403
Torque limit
Pn404
(/P-CL:ON)
Pn402
Pn405
(/N-CL:ON)
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Using Torque Limiting by Analog Voltage Reference
To use this function, set the following user constant to 1.
Pn002.0
Speed Control Option
(T-REF Terminal Allocation)
Factory
Setting:
0
Speed Control,
Position Control
This parameter can be used to enable torque limiting by analog voltage reference.
Torque limiting cannot be set separately for forward and reverse rotation.
Pn002.0 Setting
Description
0
None.
1
T-REF terminal used for external torque limit input.
2
T-REF terminal used for torque feed-forward input.
This function cannot be used with the torque feed-forward function described in
5.2.8 Using the
Torque Feed-forward Function.
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