21
Cooling Top Fan
Power Cell
Output copper bar
Back
Input copper bar
Position switch
Figure 3-16 Controller outside view
Figure 3-17 With manual bypass cabinet outside view
Figure 3-15 Typical power cell cabinet layout diagram
3.2.2 Control/ Power Cell Cabinet
The control system, power cells and their auxiliary components are installed in the control/cell cabinet (called cell
cabinet for short). The control/cell cabinet is composed by the following parts:
● controller (Figure 3-16) ● I/O interface board ● HMI
● power cells ● power cell resistance board ● measuring accessories
● power cell voltage measuring board ● control transformer assembly ● output current hall sensor
● output voltage measuring board ● primary wiring room ● secondary wiring room
● centrifugal cooling fan ● heater (optional) ● UPS (optional)
Output voltage
detection board
Power cell
voltage detection board
Power cell resistor board
Back
Fiber board
Main
control board
Singal board
Cooling Top Fan
Knife switches
Switches
Power Cell
Wire casing
Power
supply board
Cooling Top Fan
Travel switch
Controller
I/O board
Control transformer
Hall sensor
Secondary cable
connection board
Power cell
Front
Operating handle