Omron OMNUC W Series User Manual page 299

Operation
D Limiting Operation with External Signals (All Operating Modes)
Parameter No. Parameter name
Pn50b.2 Input signal selection 2
Pn50b.3
PCL signal selection
NCL signal selection
Pn404 Forward torque limit
Pn405 Reverse torque limit
PCL
NCL
Torque limit value
Speed reference
Note 1. If you change the default settings, set Pn50A.0 (input signal selection mode) to 1.
Note 2. If the connected Servomotor is set to a value greater than the maximum momentary torque,
the maximum momentary torque will become the set limit.
Note 3. If using this function with internally-set speed control, set Pn50A.1 to 1 (user-defined set-
tings), and allocate the required input signals (PCL, NCL, SPD1, SPD2, RDIR, etc.)
D Limiting Normal Operation with Analog Voltage (Position, Speed, Internally-set
Speed Control)
• When Pn002.0 (torque command input switching) is set to 1, TREF (torque command input) becomes
the analog torque limit input terminal, so you can limit the torque on multiple levels.
• Calculate the torque limit (%) as follows: Absolute TREF voltage (V) / Pn400 (torque control scale) x
1000.
• Regardless of whether the voltage is positive or negative, both forward and reverse directions have
the same limits (i.e., absolute value is taken).
Parameter No.
Pn002.0 Torque
command input
switching
Pn400 Torque control
scale
Note The default setting is 30 (x 0.1 V/rated torque).
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You must allocate PCL and NCL. (See note 1.)
Set the output torque limit when PCL is ON as
a percentage of the Servomotor rated torque
(setting range: 0% to 800%).
Set the output torque limit when NCL is ON as
a percentage of the Servomotor rated torque
(setting range: 0% to 800%).
TREF
Pn400
+
VREF
Pn300
--
Parameter
name
Set Pn002.0 to 1. (Use TREF as analog torque
limit.)
Set TREF voltage when using rated torque. (See
note.)
Explanation
Speed loop
+
gain
+
(Pn100)
Integration
(Pn101)
Pn403
Pn405
Torque limit
(NCL : ON)
Speed feedback
Explanation
Chapter 4
Reference
4-4-3 Important
Parameters
4-4-4
Parameter
Details
Pn402
Pn404
(PCL : ON)
Torque
reference
Reference
4-4-4 Parameter
Details
4-83