Wärtsilä JOVYREC D600 G120/10
150254_10_BA
- 9 –
The power-convertor transformer T1 is fed in via the mains. The transformer T1 supplies the adapted voltage for
the switching power supply. Furthermore, insulating the primary and secondary windings results in a galvanic
disconnection between the input and the output.
The rectifiers A1 and A2 transform the AC-voltage to an DC-Voltage and suppling the load and charging the
batteries.
3.3 Specification of the rectifier
The control unit is designed as a switching power supply. Including the voltage adaption, current limiting, Alarm
LED and EMI filters. The manual is attached to this manual.
3.3.1 Monitoring
unit
The printed wiring board monitors the following faults:
-
Rectifier failure,
-
rectifier is overheating,
All of the fault messages are generated as a collective alarm on the control circuit board. These signals are sent
potential-free as a collective signal to the terminal rail X3.
The following fault and operating condition is made available for further processing. The fault signal result as
follows:
-
Rectifier 1 fault : X3.1...X3.2 open
X3.2...X3.3 closed
-
Rectifier 1 fault : X3.4...X3.5 open
X3.5...X3.6 closed
When the facility is functioning properly the contact is according in the opposite state.
3.4 Battery undervoltage monitoring
An undervoltage monitoring facility has been installed for the battery. The PCB A6 monitors the voltage of the
connected battery. The voltage-value is adjusted at approx. 99VDC.
The signal 'Battery undervoltage' is sent potential-free to the terminal rail X3.The following faults and operating
conditions are made available for further processing. The fault signals result as follows:
- Battery undervoltage : X3.13...X3.14 open
X3.14...X3.15 closed
When the facility is functioning properly the contacts are according in the opposite state.
3.5 Supply voltage failure
A phase failure relay is installed for monitoring the mains-supply of the rectifier. The assembly A5 monitors the
input voltage for an phase sequence - and an phase failure. The supply voltage failure signal is sent potential-free
to the terminal rail X3.
The following fault- and operating condition is made available for further processing. The fault signals result as
follows:
- Mains fault
: X3.7...X3.8 open
X3.8...X3.9 closed
When the facility is functioning properly the contacts are according in the opposite state.
