Hioki 3390 - 11.3 Error Indication

10.5 Calculation Formula Specifications
169
10
10
Chapter 10 Specifications
2.Motor Evaluation Calculation Formulas
Items Setting Units Calculation Formulas
chA
V (DC Voltage)
N
• m, mN• m, or kN• m common to all mea-
surements (torque)
For Analog DC A [V] × channel A scaling setting
For Frequency
M :Number of synchronous samples, S :Sample (data point) number
chB
V (DC Voltage)
Hz (Frequency)
For Analog DC
|B [V] × channel B scaling setting|
Pulse input
r/min (rotation rate)
For Analog DC
B [V] × channel B scaling setting
Pulse input
Pm
N
• m (Ch A units)
mN
• m (Ch A units)
kN
• m (Ch A units)
Calculation is disabled when Ch A units are not those specified above, and when Ch B units are set to other than r/min.
Slip
Hz (Ch B units)
r/min (Ch B units)
Select an input frequency (f
1
to f
4
)
1
M
-----As
s0=
M1–

(Measurement freq. – fc setting value) × rated torque setting value)
fd setting value
1
M
-----Bs
s0=
M1–

set no. of poles × pulse frequency
2 × set no. of pulses
*1
2 × 60 × freuency[Hz] (calculated from above Pulse Input value *1)
set no. of poles
2 × π ×(Ch B display value)
60
(Ch A display value) ×
2 × π ×(Ch B display value)
60 × 1000
(Ch A display value) ×
2 × π ×(Ch B display value)× 1000
60
(Ch A display value) ×
frequency - Ch B display valueCh B display value× 1000
input frequency
100 ×
2 × 60 × input frequency - Ch B display value× set no. of poles
2 × 60 × Input frequency
100 ×