5
3270 3403 D
Frame-mounted Tracer™ AH541 Controller
Figure 3.
Installing the main circuit boards
G
BO5
BO4
BO3
BO2
BO1
BO6
24VAC
AO4
AO3
AO6
AO5
AO2
IN3
IN2
IN1
AO1
IN6
IN7
IN5
IN11
IN12
IN10
IN9
IN8
IN4
BO1
BO3
BO5
BO2
BO4
BO6
SER
VICE
COMM
FA
N
EX
FA
N
TEST
ST
AT
US
BO5
BO4
BO3
BO2
BO1
BO6
24VAC
AO4
AO3
AO6
AO5
AO2
IN3
IN2
IN1
AO1
IN6
IN7
IN5
IN11
IN12
IN10
IN9
IN8
IN4
BO1
BO3
BO5
BO2
BO4
BO6
SER
VICE
COMM
FA
N
EX
FA
N
TEST
ST
AT
US
H
I
1.
Hold the top frame
(A)
at a 90° angle to the bottom frame
(B)
.
2. Connect the 60-pin cable
(C)
to the 60-pin cable ejector slot
(D)
by pressing down firmly on the cable until the ejector
tabs collapse and snap over the ends of the cable. Then, connect the 20-pin cable
(E)
to the 20-pin slot
(F)
.
3. Align the snaps on the top frame
(G)
with the mounting locks on the bottom frame and then push the two frames
together in the direction indicated by the arrows.
Note:
You will hear a click when the frames connect. For controllers with an operator display, connect the operator-
display cable to the circuit board.
4. Install the supplied grounding screw (6-32 x 2 inch, thread-rolling screws) into the assembly and turn it into the
sheet metal backing.
Grounding
screw
Important:
The 60-pin cable ejector is designed to eject the 60-pin cable when disconnecting (refer to the lower right inset above).
B
A
C
D
E
F
Ensure that the slot keys are
aligned when connecting the
60-pin cable to the 60-pin
cable ejector.
Grounding screw
5. Locate the 24 Vac power
connector on the termination
board. Remove the mating plug
with screw terminals.
6. Attach the 24 Vac power-supply
cable to the screw terminals on
the mating plug.
7.
Connect the 24 Vac power cable to
the termination board
(H)
. The
green status LED will light
(I)
.
