2 - Fagor Automation

Power supplies
2.
POWER SUPPLIES
94
92
Regenerative regulated power supplies
DDS
HARDWARE
Ref.1307
Operating modes
See the next running status diagram:
F. H2/53
Running state diagram of the RPS power supply.
Running states
Description of the possible running states:
Status Meaning
0 Without power line connection. Stand by.
1 Loading the DC BUS. Temporary state.
2 Running in BOOST mode.
The system works like a BOOST power supply.
3 Running in REGENERATOR mode. The system works as a generator
discharging the excess energy of the DC BUS into mains.
4 Emergency state.
Transitions between running states
The transitions between states are done automatically and the system
adapts itself to the relevant operating mode depending on the mains voltage
and on the DC BUS voltage. These transitions are:
Transition Meaning
A The power line connection is made.
B
C
D
STATE 0
WITHOUT POWER
A B
STATE 1
LOADING DC BUS
C
STATE 2
BOOST MODE
D E
STATE 3
GENERATOR MODE
STATE 4
EMERGENCY STOP
F
The time set as the minimum time limit (3.2 s) to charge
the DC BUS has been exceeded. The charge process has
failed and error E315 of the DC BUS comes up. Temporary
state.
The charge process has finished correctly.
The line voltage is within the levels set to consider it
working in boost mode (323424 V AC). The DC BUS
voltage is lower than 625 V DC.
The BUS voltage is higher than the nominal voltage set
for the DC BUS and the value of the mains voltage is
within the limits set to work in generator mode.
The BUS voltage is lower than the nominal voltage set for
E
the DC BUS and the value of the mains voltage is within
the limits set to work in boost mode.
F The emergency stop has ended.