Installation manual

FuelMaster
®
Installation Manual
88

Smart Relay Assemblies produce a momentary contact closure adjustable for 1 to 16 seconds
through dip switches located on the board. The dip switches are numbered 1-4 and provide the
following momentary settings:
All Off = 1 second
1 On = 4 seconds
1 and 2 On = 8 seconds
1, 2, and 3 On = 12 seconds
All On = 16 seconds
The J3 receptacle is fitted with a 7-pin terminal plug for control wiring inputs. Control wiring to J3
is matched as follows: hose 1 = pins 2 and 3, hose 2 = pins 4 and 5, and hose 3 = pins 6 and 7.
Use one pin of each pair to receive input, and the other to send an output. It doesn’t matter
which is used for the input, or which is used for the output.
NOTE
If the part number 233129 cable is not connected between J1 on the Smart Relay Assembly and
a Pedestal I/O Board pulser connector (J4-J7), the Smart Relay Assembly will not function. It
needs both the 12VDC and 0V from the Pedestal I/O Board for power and ground.
The J1 receptacle is fitted with a 5-pin terminal plug for pulse outputs. Positions in J1 are +12
(pins 1 and 2), 0V (pins 3 and 4), and PLS OUT (pin 5). A cable (part number 233129) is
provided with the Smart Relay Assembly which connects J1 on the Smart Relay Assembly to the
Pedestal I/O Board and any applicable pulser connector (J4, J5, J6, J7). Connectivity is as
follows:
Table 4-3. Wiring Smart Relay Assembly (SRA) to Pedestal I/O Board
SRA Wire Pedestal I/O Board
J1
Color J4
1 (+12) White 1 (+12V)
3 (0V) Black 6 (P1)
5 (PLS OUT) Green 2 (0V)
Each Smart Relay Assembly can control up to a maximum of three devices. If more than one
device is being controlled, a jumper wire must be added for each additional pulser input. If two
devices are installed and connected to hose positions A and B, install a jumper between pins 2
(P1) and 4 (P2) of J4. If three devices are installed and connected to hose positions A, B, and C,
install a jumper between pins 2 (P1) and 4 (P2) of J4, and another jumper between pin 4 (P2) of
J4, and pin 2 (P3) of J6. One pulse output from the Smart Relay Assembly is used as a pulse
input for three positions on the Pedestal I/O Board.
When a Smart Relay Assembly is installed, the Divide Rate for the applicable hose position is set
to 10:1, the Pump Finish Timer is to 10 seconds, and the No Pulse Timeout is set to 10 seconds.
The indicator lights L1, L2, and L3 illuminate when a signal is sent to the Smart Relay Assembly.
The light stays on until the relay turns off and the 10 second Pump Finish Timer expires. The
indicator lights K1, K2, and K3 illuminate when the corresponding relay is activated, and stays on
for the duration set by the dip switches. The indicator light K4 illuminates when the relay is
generating pulses, and flashes until enough pulses are generated to create a transaction.
j. Monitor Mode. There are applications which may require FuelMaster
®
to continuously monitor
the flow of fuel, but not through individual transactions. Such would be the flow of fuel to a
furnace or some other device which is continually operating. One application uses it to monitor
the continuing flow of water and glycol into a deicing fluid blender. This can be accomplished
through the use of the Monitor Mode.
264