4-116
4-2 Function Mode
4
Functions
Torque Monitor Function
• This function allows you to monitor an estimated motor output torque, when "sensorless vector
control", "0-Hz sensorless vector control", or "sensor vector control" is selected as the control
method.
• To use the monitor via the Digital Operator, select display code d012.
• To use the monitor with a signal from the control terminal block, refer to "Digital MP Terminal"
(page 4-106) or "Analog Output AM/AMI Terminals" (page 4-107).
• If "VC", "special VP", or "free V/f setting" is selected in V/f characteristics selection A044/A244, this
function is disabled, and the display or the output signal from the control terminal block is not
defined.
• For a torque monitor value of this function, the output torque at the rated frequency equivalent to
the motor's output rating during synchronous rotation is indicated as 100%.
• Since this function estimates output torque based on the motor current, the accuracy is approx.
20% when a motor with the same output capacity as the Inverter is used.
Preliminary Excitation Function (FOC)
• This function supplies excitation current from an input terminal to establish magnetic flux
preliminarily, when "03" (sensorless vector control), "04" (0-Hz sensorless vector control), or "05"
(sensor vector control) is selected in V/f characteristics selection A004/A244.
• Allocate 55 (FOC) to the desired multi-function input.
• The Inverter does not accept the RUN command unless the FOC terminal is turned on when FOC
is allocated.
• If the FOC terminal is turned off during operation, the Inverter goes into free-run status. If the FOC
terminal is turned on again, the Inverter restarts according to the setting of free-run stop selection
b088.
Parameter No.
Function name
Data
Default setting
Unit
A044/A244
V/f characteristics
selection
03: Sensorless vector
04: 0-Hz sensorless vector
05: Sensor vector (A244 is blank.)
00
⎯
C027
C028
C029
MP selection
AM selection
AMI selection
02: Output torque
11: Output torque (signed) (C028 only)
00
⎯
H003/H203
Motor capacity selection
0.20 to 160.0
Factory default
kW
H004/H204
Motor pole number
selection
2/4/6/8/10
4
Pole
FOC
FW (RV)
Output frequency
Excitation current flows.
Free running
Restarts according to b088.
Does not operate because
the FOC terminal is OFF.
Related functions
A044/A244, C001 to C008
Summary of Contents for 3G3RX Series
Page 1: ...Cat No I560 E1 03 USER S MANUAL SYSDRIVE RXSERIES High function General purpose Inverter ...
Page 2: ......
Page 17: ...Chapter 1 Overview 1 1 Functions 1 1 1 2 Appearance and Names of Parts 1 4 ...
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Page 23: ...Chapter 2 Design 2 1 Installation 2 1 2 2 Wiring 2 6 ...
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Page 337: ...Chapter 6 Inspection and Maintenance 6 1 Inspection and Maintenance 6 1 ...
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Page 437: ...Index ...
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