Manual
27
LED Indicators
10 - Pump Relay LED Indicator - When illuminated, the pump relay is activated.
11 - Common Relay LED Indicator - When illuminated, the common relay number 1 is activated.
12 - Common Relay LED Indicator - When illuminated, the common relay number 2 is activated.
13 - 24 VAC Output LED Indicator - When illuminated, it indicates the presence of 24 VAC across the 24
VAC Bus Bar supplied by the Green/Black power wire assembly.
14 - 8-Station Output Module Logic LED Indicator - When illuminated, communication between the
Distribution board and the output module is present. If any one of the output module’s indicator is not illuminated,
check the ribbon cable for proper connection.
If all of the module’s indicator are not illuminated, check the following for possible causes:
• Tripped 4.0A Circuit Breaker • Loss of Power Supply • Transformer Malfunction
If the circuit breaker is tripped, the Distribution board or Timing Mechanism most likely experienced a short circuit.
Check the fuses and replace as necessary.
15 - 24 VAC Output LED Indicator (One per Station) - The green station LED indicator will illuminate
when the 8-station output module receives a command to activate a station, either by manual irrigation, irrigation
program or by a hand-held command. It indicates that the output module received a signal and in response
activated the corresponding relay. It does not indicate the presence of 24 VAC in the station terminal. The LED will
not illuminate when using the manual switch to activate a station.
16 - 24 VAC Output LED Indicator - When illuminated, it indicates the presence of 24 VAC across the 24
VAC Buss Bar supplied by the Green/Black power wire assembly. If the red LED is not illuminated, check the fuse
for that module. If the fuse is blown, a short circuit on the 24 VAC field wires or shorted solenoid could be the cause.
If all of the red LED’s are not illuminated, check for blown 3.2A fuse, loose power cable connection to the 24 VAC
Buss Bar or damaged solder joints between the fuse holder and the 24 VAC Bus Bar.
17 - Pump Output LED Indicator - When illuminated, it indicates voltage is present at the pump output
terminal.
18 - 5 Volt LED Indicator - When illuminated, it indicates the presence of 5 VDC to the logic circuits. 5 VDC is
used by the Modem Module, Output Modules, Pump Module and the Timing Mechanism.
19 - 9 Volt LED Indicator - When illuminated, it indicates the presence of 9 VDC to the logic circuits. 9 VDC is
used by the Output Modules, Pump Module and the Timing Mechanism.
20 - 12 Volt LED Indicator - When illuminated, it indicates the presence of 12 VDC to the logic circuits.
The 12 VDC is used by the Modem Module and Timing Mechanism.
21 - DS2 LED Indicator - This red LED will blink as an indication that the Timing Mechanism is receiving proper
voltages and signals.
22 - DS3 LED Indicator - This green TX LED will flash during communication transmission much like the
modem TX LED.
23 - DS4 LED Indicator - Not utilized.
24 - DS5 LED Indicator - This red RX LED will flash while receiving communication data much like the
modem RX LED.
25 - 5, 9 & 12 Volts LED Indicator - When illuminated, each LED indicates the presence of their
corresponding voltages in the Timing Mechanism. The ribbon cable assembly connected to the J10 socket provides
the voltage supply.
1
PUMP COMMON
PUMP COMMON
ON
AUTO
OFF
1
PUMP COMMON
PUMP COMMON
ON
AUTO
OFF
10
11
12
13
14
15
16
17
5V 9V 12V
DS3
DS2
DS4 DS5
18
19
20
21
23
22
25
Station
Output
Board
Power Distribution Board
VP Timing Mechanism
24