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8.1.3 Start-up an additional unit in a redundant parallel system.
Initial situation:
The load is still powered by the other units supplying the parallel bus.
This unit will be powered on and connected to the parallel bus in order to share the
load with each other's.
Warning!
The high speed bus cable connecting J52 (A) and J62 (B) in any case cannot be
connected or disconnected after the system has been powered on.
The bus terminals must be properly connected before powering the additional unit.
Open the front door of this unit only, and make sure that:
a)
The switches Q1, Q2 and Q4 and the external battery circuit breaker or battery fuses are open.
b)
Apart from the hinged lockable door, all the other panels are mounted and correctly grounded.
c)
The protection panels are fastened in their correct position.
1. Switch-ON the mains voltage from the input distribution (both rectifier and bypass if separated).
At this stage the electronic power supply and the buzzer are switched on.
The control panel must be lit, and the LED "service check" is ON.
On the LCD panel you can see that the auto-test procedure is running.
If the test results OK, the main screen will indicate the status "load off".
2. Check for correct phase rotation of input mains on "P1 - Power Interface".
• Lamp B1 ON:
• Lamp B1 OFF:
3.
Close the input switch Q4.
LED 1 must be lighted and LED 3 (inside rectifier symbol) must blink.
The rectifier starts up automatically, supplying the DC circuit, and charging the DC capacitors.
After some seconds, the contactor K3 closes (the green LED1 - K3 ON on "P1 - Power Interface"
lights up, see Fig. 4.8.2-1).
The LED 3 (inside rectifier symbol) stops blinking and stay ON, indicating that the DC link has
reached the floating voltage.
4.
Battery coupling to DC link.
Warning: in case of parallel system with rectifiers on common battery, the operation must be
performed within 15 seconds following the blinking lighting of LED 3.
Close the external battery circuit breaker or battery fuses, after checking the right polarity.
The battery is now connected to the DC link. LED 4b should be lit indicating battery charge.
The buzzer switch OFF and LED "alarm" is OFF.
5.
Press, only on this unit, the push-button "load off".
6.
Close circuit breaker Q1 on this unit.
The LED 6, 8 and "service check" switch OFF.
7.
Press the key "I" on the control panel of this unit. Inverter starts up (LED 5 blinks).
Once inverter output voltage is OK, LED 5 becomes fix and the output will be automatically
connected on the parallel busbar sharing the load with each other's. LED 6 is now lighted.
Verify on display screen that the load should be equally shared between the parallel units.
Modifications reserved
OPM_SPE_XXX_60K_60K_7GB_V010.doc
the phase rotation (clockwise) is correct (see Fig. 4.8.2-1).
the phase rotation (anti-clockwise) is not correct (see Fig. 4.8.2-1).
In this case switch OFF the mains, reverse two phases between them on the line
supplying the UPS and repeat the procedure from point 1.
LED 2 on the control panel must be lit.
Pagina 69/90
Operatine Manual SitePro 60 kVA
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