EM TEST
PFS 200 Series
Manual for Operation
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5.
Test Equipment
5.1.
Construction
The Power fail generator type PFS 200 is divided into two main parts. The control unit is shielded and decoupled
against the other unit.
1
2
3
7
1
6
II
I
4
5
8
9
10
I
Control unit
II
Power switches
1
Power supply
2
Interface board
3
Processor board
4
Transformer
5
Filter board
6
Keyboard / LCD display
7
Power supply
8
Current sensor
9
Front-panel board
10
Switch PF1 and PF2 diode
5.2.
Control unit
The control unit is built up by 3 boards, the power supply, the micro-controller board and the interface board.
Power supply unit
The power supply unit supplies voltages of +/- 15V, + 5V, + 24V for all other modules of the simulator. The unit is
fused on the back of the device in the power supply socket.
Micro-controller unit
This unit controls the entire functions of the power supply simulator and simultaneously organizes the data
transfer via the USB or parallel IEEE interface.
The desired test parameters are preselected via the function keys or the knob (incr./decr).
I / O Controller
All control parameters entered via the keyboard or the interfaces are interpreted by the I/O controller. In addition
this print contains the control of the power electronics as well as the optical separation between control circuits
and power electronic.
LED
Two LED’s mounted on the front panel show if a channel is active or not. The LED of an active channel is lighted.
During mode
V the LED display switches from one channel to the other.
Trigger mode
In order to
accelerate the test procedure the events may be generated repetitively. In the operating mode „AUTO“
events are released at a preselected interval time.