Rockwell Automation Publication 20Y-TG002C-EN-P - April 2017
85
LCL Filter Component Section
Chapter 7
Remove the LCL Filter Fan DC
Power Supply
The following figures show the LCL filter fan DC Power Supply wiring
diagram with the connections to the AFE power structure and DC bus.
For complete details on LCL fan system information, see the PowerFlex 700H,
700S, and 700AFE Drive Fan Systems Installation Instructions, publication
Figure 10 - LCL Filter Fan DC Power Supply Wiring Diagram (older version)
Figure 11 - LCL Filter Fan DC Power Supply Wiring Diagram (newer version)
X3
X3
LCL Filter
X8
X53 (3-pin)
+ Pin = DC+ (supply)
- Pin = DC- (supply)
X4
X51 (4-pin)
Pin 1 = +16.5V
Pin 3 = (fan control)
Pin 5 = (fan alarm)
Fuse
X52 (4-pin)
Pin 1 = KLIXON
Pin 4 = KLIXON
X1
Fan
KLIXON
X1
Fan DC Power
Supply PCB
AFE Power Structure
X3 on AFE Power Structure
DC Bus
X3
LCL Filter
X8
X53 (3-pin)
+ Pin = DC+ (supply)
– Pin = DC– (supply)
X2
X51 (4-pin)
Pin 4 = +16.5V
Pin 3 = (fan control)
Pin 2 = –DC
Pin 1 = (fan alarm)
Fuse
X52 (4-pin)
Pin 1 = KLIXON
Pin 4 = KLIXON
X1
Fan
KLIXON
X81
Fan DC Power
Supply PCB
AFE Power Structure
DC Bus
X3 on AFE Power Structure
Pin 1
Pin 2
Pin 3
Flying Lead to –DC Bus
IMPORTANT
Before doing any work, disconnect the AFE power structure from the AC
supply, and wait until the fan stops and the indicators on the keypad turn
off. (If a keypad is not attached, see the indicator through the keypad base.)
Wait 5 more minutes before doing any work on the DC-to-DC power supply
to let it completely discharge. Do not open the cover until after this time has
expired.