9-10
IM WT5000-02EN
Setting the Electrical Angle Correction Value (Electric Angle Correction)
7.
Tap
Correction
. An Electric Angle Correction screen appears.
Can be set on models with the /MTR2 option.
Set the correction value (−180.00 to 180.00).
Automatically computes the correction value
Correction Value is set to the computed value.
Set the voltage or current to automatically compute the correction value of
(U1 to U7, I1 to I7).
Setting the Motor Efficiency Computation
This instrument can compute the motor efficiency (the ratio of power consumption to motor output) and
total efficiency from the active power and motor output that it measures.* For information on how to set
expressions, see section 2.11.
• Example in which motor efficiency is set to η1 and total efficiency to η2
×100
Motor output Pm (W)
P
Σ
A(W)
Motor efficiency
η
1(%) =
×100
Motor output Pm (W)
P
Σ
B(W)
Total efficiency
η
2(%) =
Converter
(inverter, etc.)
Motor
Motor output Pm1
P
Σ
A
Motor power
consumption
P
Σ
B
Motor and converter
power consumption
Computation/Output tab
Efficiency button
Motor efficiency setup example
Total efficiency setup example
9.1 Configuring Motor Evaluation and Auxiliary Input Settings