YOKOGAWA WT5000, Features Manual

Page: 13 / 179

1-5
IM WT5000-01EN
Wiring Unit Harmonic Measurement Functions (Σ functions)
Measurement
Function
Characters or Numbers
in Parentheses
Total Value 1
U Σ ( ) Yes Yes
I Σ ( ) Yes Yes
P Σ ( ) Yes Yes
S Σ ( ) Yes Yes
Q Σ ( ) Yes Yes
λΣ ( ) Yes Yes
Functions with parentheses will produce different values depending on which of the following is contained in their
parentheses.
• Total: Total value
• 1: Fundamental harmonic value
Delta Computation Functions
Function Description
Δ
U1
The values returned by the delta computation
functions vary depending on the specified delta
computation type.
Δ
U2
Δ
U3
Δ
U
Σ
Δ
I
Δ
P1
Δ
P2
Δ
P3
Δ
P
Σ
For details about delta computation functions, see “Delta Computation (Δ Measure).”
Click here.
Motor Evaluation Functions (Option)
Function Description Motor Number Input Element
Speed Motor rotating speed Yes No
Torque Motor torque Yes No
SyncSp Synchronous speed Yes No
Slip Slip (%) Yes No
Pm Mechanical output of the motor
(mechanical power)
Yes No
EaM1U,
EaM1I
Electrical angles: Phase angles of the
fundamental waves of U1 to I7 with
the rising edge of the signal received
through the Motor1 (MTR1) Z terminal
of the motor evaluation function as the
reference (specify an input element).
No Yes
EaM3U,
EaM3I
Electrical angles: Phase angles of the
fundamental waves of U1 to I7 with
the rising edge of the signal received
through the Motor3 (MTR2) Z terminal
of the motor evaluation function as the
reference (specify an input element).
No Yes
Auxiliary Input Measurement Functions (Option)
Function Description
Aux1 to 8 Auxiliary inputs 1 to 8
1 Items That This Instrument Can Measure