Stober SD6 Series - Formula Symbols

13 | Appendix STOBER
162
12/2018 | ID 442537.05
13.4 Formula symbols
Symbol Unit Explanation
C
maxPU
F Charging capacity of the power unit
C
PU
F Self-capacitance of the power unit
f
2PU
Hz Output frequency of the power unit
f
PWM,PU
Hz Frequency of the pulse width modulation of the power unit
I
1maxCU
A Maximum input current of the control unit
I
1maxPU
A Maximum input current of the power unit
I
1N,PU
A Nominal input current of the power unit
I
2max
A Maximum output current
I
2maxPU
A Maximum output current of the power unit
I
2N,PU
A Nominal output current of the power unit
P
effRB
W Effective power at the external braking resistor
P
maxRB
W Maximum power at the external braking resistor
P
N,PU
W Nominal power of the power unit
R
2minRB
Ω Minimum resistance of the external braking resistor
R
intRB
Ω Resistance of the internal braking resistor
U
1CU
V Input voltage of the control unit
U
1PU
V Input voltage of the power unit
U
2
V Output voltage
U
2max
V Maximum output voltage
U
2PU
V Output voltage of the power unit
U
offCH
V Switch-off threshold of the brake chopper
U
onCH
V On limit of the brake chopper