User Manual for BPS-2000
www.levitronix.com
PL-4021-00, Rev02, DCO# 15-235
17
3.2.2 AC Input Voltage and Grid Currents
The input grid currents depend on the power and the input voltage. As shown in
Table 9
maximum input grid
currents are achieved at highest power and lowest voltage.
Phase Type
AC Voltage
AC Input Current
Performance Mode
Single Phase
200
– 240 VAC ±10%
(180
– 264 VAC)
13.3
– 11.1 Arms ±10%
(14.8
– 10.1 Arms)
Continous speed and pressure with
maximum active power.
3 Phase
Delta voltage
1
:
200
– 240 VAC ±10%
(180
– 264 VAC)
Star voltage
1
:
115
– 139 VAC ±10%
(104
– 153 VAC)
3x 6.7
– 5.6 Arms ±10%
(3x 7.5
– 5.1 Arms)
Continous speed and pressure with
maximum active power.
Table 9: Voltage and grid current specifications
1: See Figure 28 for visualization of delta and star voltages.
3.2.3 Inrush Current
Various situations have to be considered for the inrush current. The controller has integrated inrush current
limiters, which limit the current during switch-on of the AC power. However, these limiters are not active if the
controller is not completely discharged
Table 9
shows the inrush currents during these situations. It has to be
emphasized that these are absolute worst case currents measured with a rigid mains supply at highest input
voltage. In reality these inrush currents might be much smaller.
Situation
I
2
t
Value in [A
2
s]
Peak Value in [A]
Switch-on after complete discharge of controller (> 60 s).
For this case inrush current limiter in the controller are active.
29.3
90
Switch-on after incomplete discharge (< 60 s, worst case)
For this case inrush current limiter in the controller are not active.
350.8
1442
Table 10: Inrush currents for various AC voltage power-off/on situations
(Worst case AC input voltage of 240 V +10%)
3.2.4 Earth Leakage Current
Earth leakage currents have been measured under worst case situation and are
5 mA
.
3.2.5 Recommendations for Circuit Breaker Design
The controller contains fuses in all power input lines, which are configured for
20 A
(time lag
T)
.
For the selection of external breakers above considerations about AC voltage, grid currents, inrush current
and earth leakage current have to be considered. It is recommended to test the reliability and sensitivity of
the selected breakers with the pump system in the context of the tool, where it is operated.
Circuit breaker types fulfilling above considerations have following basic specifications:
-
16 A and D or K tripping characteristics
