User Manual – Rev B
FCS Series II
7.5 Advanced Troubleshooting.
WARNING:
Do not connect 400-480V into the 208-240V unit, the result could
be a severely damaged unit.
CAUTION:
VOLTAGES UP TO 504 VAC AND 710 VDC ARE PRESENT IN
CERTAIN SECTIONS OF THIS POWER SOURCE.
WARNING:
THIS EQUIPMENT GENERATES POTENTIALLY LETHAL
VOLTAGES. DEATH ON CONTACT MAY RESULT IF PERSONNEL FAIL TO
OBSERVE SAFETY PRECAUTIONS. DO NOT TOUCH ELECTRONIC CIRCUITS
WHEN POWER IS APPLIED
Switch Off Units
Switch off each unit at the circuit breaker on the front panel as well as removing the input power
from the unit.
WARNING:
Wait 10 minutes for all internal capacitors to discharge.
7.5.1 Accessing Amplifiers
To access any of the three power amplifiers, the front panel door needs to be opened. To open
the front panel door, pull open the chrome latch on the right hand side and twist counter
clockwise. The door can now swing open on its hinges. To close, reverse this sequence.
Initial Inspection
Make a visual inspection of the unit and ensure all the connectors are properly mated and there
are no loose wires.
7.5.2 Module Fault
The MODULE FAILURE lamp turns on if any of the power amplifier modules cannot maintain a
regulated output proportional to the oscillator reference input. If the MODULE FAILURE lamp
turns on, the following items may be at fault:
1.
The output is overloaded.
SOLUTION: Remove the overload. Observe the output capability of the power source.
2.
The three phase input voltage is too low or one of the input phases is not functioning.
SOLUTION: Verify that the voltage to the power source is within the specified input range and
that all three phases are active.
3.
An overtemperature condition exists.
SOLUTION: If an overtemperature condition has caused the MODULE FAILURE lamp to turn
on, the OVERTEMP lamp will also be lit. Refer to paragraph 6.5.
4.
An amplifier has failed or its 300 volt bus fuse has blown.
California Instruments
107
Summary of Contents for FCS Series II
Page 4: ...User Manual Rev B FCS Series II California Instruments 4...
Page 27: ...User Manual Rev B FCS Series II California Instruments 27...
Page 89: ...FCS Series II 89 Figure 5 1 FCS System Block Diagram User Manual Rev B California Instruments...
Page 95: ...User Manual Rev B FCS Series II Figure 6 1 Calibration Setup California Instruments 95...
