Fagor DDS Series Hardware Manual page 67

Module power-up
1. For
the XPS-25 and XPS-65 power supplies
Apply power to the Auxiliary Power Supply from mains through pins 2
and 3 of connector X3; These will power the control circuits of the power
supply and provide 24 V DC at connectors X4, X5 and X6.
2. The power supply checks the system status
If the status is correct
The System OK contact closes (pins 6 and 7) and it stays closed while
the control circuits are powered and no error comes up in any of the
modules of the system.
The red FAULT indicator light blinks (it is not indicating an error because
there are no phases yet).
If the status is not correct
The red FAULT indicator light is permanently on (not blinking).
3. Apply power to the power supply
Power is applied from mains through the power connectors on top of the
power supply.
The soft start begins.
The red FAULT indicator light turns off.
4. Green DC BUS ON light on
After 4 seconds, the green DC BUS ON indicator light turns on meaning
that the power bus has the proper DC voltage.
If for any reason an error is activated at the power supply or at any drive it
supplies to, the system will act as follows:
1. The green indicator light DC BUS ON will turn off indicating that the power
supply will stop supplying voltage to the power bus.
DANGER. When the DC BUS ON led turns off it may take about 4 minutes
for the DC BUS to discharge to a safe value (< 60 V DC) depending on the
number of drives that are connected.
2. The red FAULT light will be on permanently.
With the Error RESET input (pin 1), it is possible to eliminate the errors at the
drives that are part of the system - see chapter 14, resettable errors, of the
"man_dds_soft.pdf" manual - and it acts as follows:
 Its state will be 0 V DC. Activating it with 24 V DC erases all the errors
stored in the memory of each drive of the system.
 Should the cause of the error persist, the corresponding module will
show the same error again and it will be necessary to turn the unit back
on to eliminate the error if it is a serious error.
The System Speed Enable input (pin 5) is related to the Speed Enable inputs
of the drives so the System Speed Enable activates/cancels internally all the
Speed Enable of the drives connected to the power supply through the
internal bus.
 The state of the System Speed Enable is usually 24 V DC.
 When removing the 24 V DC from the System Speed Enable pin is set to
0 V DC, all the drives joined together by the same internal bus will brake
the motors that they control with the torque corresponding to the active
acceleration ramp and when stopped or when reaching the time limit to
stop, programmable according to parameter GP3 (see chapter 13 of the
"man_dds_soft.pdf" manual), it cancels the motor torque.
The consumption of each input is between 4.5 and 7 mA.
  Power supplies
2.
DDS
HARDWARE
Ref.1912
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