8-2
IM WT5000-01EN
Expression (Expression)
Operation Type
You can use combinations of measurement functions and element numbers (e.g., Urms1) as operands to
configure up to 20 equations (F1 to F20). There can be up to 16 operands in 1 equation.
The different types of operands are listed below (measurement function: operand).
• Normal Measurement
Voltage, current, and power
Urms: URMS( )
Irms: IRMS( )
P: P( )
Pfnd: PFND( )
Umn: UMN( )
Imn: IMN( )
S: S( )
Sfnd: SFND( )
Udc: UDC( )
Idc: IDC( )
Q: Q( )
Qfnd: QFND( )
Urmn: URMN( )
Irmn: IRMN( )
λ: LAMBDA( )
λfnd: LAMBDAFND( )
Uac: UAC( )
Iac: IAC( )
Φ: PHI( )
Φfnd: PHIFND( )
Ufnd: UFND( )
Ifnd: IFND( )
Pc: PC( )
−−−
U+pk: UPPK( )
I+pk: IPPK( )
P+pk: PPPK( )
−−−
U−pk: UMPK( )
I−pk: IMPK( )
P−pk: PMPK( )
−−−
CfU: CFU( )
CfI: CFI( )
−−−
−−−
fU: FU( )
fI: FI( )
−−−
−−−
f2U: F2U( )
f2I: F2I( )
−−−
−−−
Integrated power
Wp: WH( )
q: AH( )
ITime: ITIME( )
Wp+: WHP( )
q+: AHP( )
WS: SH( )
Wp−: WHM( )
q−: AHM( )
WQ: QH( )
Efficiency
η1: ETA1( ) to η4: ETA4( )
User-defined functions
F1: F1( ) to F20: F20( )
• Harmonic measurement
U(k):UK( , )
I(k):IK( , )
P(k):PK( , )
S(k):SK( , )
Q(k):QK( , )
λ
(k):LAMBDAK( , )
Φ
U(k):UPHI( , )
Φ
I(k):IPHI( , )
Φ
(k):PHIK( , )
Z(k):ZK( , )
Rs(k):RSK( , )
Xs(k):XSK( , )
−−−
Rp(k):RPK( , )
Xp(k):XPK( , )
Uhdf(k):UHDF( , )
Ihdf(k):IHDF( , )
Phdf(k):PHDF( , )
Uthd: UTHD( )
Ithd: ITHD( )
Pthd: PTHD( )
Uthf: UTHF( )
Ithf: ITHF( )
−−−
Utif: UTIF( )
Itif: ITIF( )
−−−
hvf: HVF( )
hcf: HCF( )
−−−
fPLL1:PLLFRQ1( )
fPLL2:PLLFRQ2( )
Kfactor:KFACT( )
Φ
U1−U2: PHIU1U2( )
Φ
U1−U3: PHIU1U3( )
Φ
U1−I1: PHIU1I1( )
Φ
U2−I2: PHIU2I2( )
Φ
U3−I3: PHIU3I3( )
−−−
8 Computation Function
