Equipment description
P1509 21 x 125 Line Matrix
20
Front Access Full Matrix LED Sign Maintenance Manual (pn 1507610501 rev. A)
Controller plate
Figure 10.
Controller plate components
Item
Name
Part #
Description
A
CONTROLLER #1
15029101
Controls display and communicates status information to central
communications.
B
CONTROLLER #2
12069003
C
RELAY #3
48000005
Only used on 1.07-inch pitch signs to turn the light on when the door switch
is open.
D
120V OUTLET
64000024
Service outlet (GFCI).
E
FAN THERMOSTAT
30670752
Normally open. Closes when temperature >120ºF and fans are activated.
F
FAN MONITORING BOARD
1509110301
Monitors fan speed. Sends alert via NTCIP if fan speed falls below a
specified RPM.
G
RELAY #1
48000004
Fan relay. This relay is used to control AC power being applied to the fans.
H
RELAY #2
48000009
Heat strip relay. The relay is used to control AC power being applied to the
heaters.
I
TERMINAL BLOCK
43201045
Distributes DC power and signal to control sub assembly.
J
HUMIDITY SENSOR
30676015
Measures internal relative humidity within 2% accuracy.
A
B
D
E
F
G
H
J
I
C