6
Switch Definitions
SW1
SW2
Pole Description
Function
Pole Description
Function
1
Address 0
1
Fault Shut down
For M/S and AC only. When
ON
an
Abnormal condition on any controller
it will shut down all STPs
2 Address
1
2 Unused
Unused
Switch
3 Address
2
3 Master/Slave
**
ON
for Master controller
OFF
for Slave(s) and Stand Alone
4 Address
3
4 Alternating
Circuit
**
ON
for Master Controller
OFF
for Slave(s) and Stand Alone
5 Address
4
Controller Addressing switches for
use with Master/Slave and
Alternating Circuit configurations
See Table 1
5 Extended
Run
Disable*
ON
disables Extended Run Fault
OFF
Extended Run detection active
6
Fault Read out
*
ON
Displays the last 5 abnormal
conditions the controller encountered
6 Unused
7
Bypass
*
ON
Bypasses diagnostics for 10
minutes. Use as Troubleshooting aid
7 Unused
8
Auto Restart
*
When
ON,
controller will attempt to
restart STP with Empty Tank error
when hook signal is applied.
8 Unused
Unused switches
*
See trouble shooting guide for detailed description
**
See Figure 1 for configuration switch settings
Selectable features to aid Troubleshooting
See Figure 1 for location and See Switch Definitions table for brief description of the following features:
Fault Read Out Mode
(SW1, Pole 6)
With this mode selected, switch in the ON position, the controller will display the last 5 abnormal conditions it
encountered. The controller will beep once and then the red LED will flash the most recent abnormal condition. It will
then beep twice and the red LED will flash the second to last abnormal condition. The controller will follow this sequence
through 5 beeps and then repeat the sequence. It will continue to repeat the sequence while in this mode. If there is less
then 5 abnormal conditions the controller will continue the beep sequence but the red LED will not flash after the beep.
With the appropriate equipment the last 5 abnormal conditions can be read through the RS485 port.
Bypass Mode
(SW1, Pole 7)
With this mode selected, switch in the ON position, the controller will operate as a standard control box. It will not indicate
or shut down any abnormal condition with the exception of an over current condition (short or locked rotor). The controller
will stay in this mode for 10 minutes. After the 10 minutes the controller will revert to its normal operation. Pushing the
reset button will allow it to run another 10 minutes in the Bypass mode.
Auto Restart Mode
(SW1, Pole 8)
With this mode selected, switch in the ON position, If the controller detects an empty tank/under load condition, it will shut
down the pump and it will attempt to start the pump when a hook signal is removed and reintroduced to the controller. If
the empty tank condition is still present the controller will shut down the pump. If the empty tank condition is corrected
(tank is refilled) the controller will run the STP and clear the abnormal condition. In M/S configuration, if the Master is in
the under load condition, it will wait until the Slave controller calls for help before attempting to restart.
Fault Shutdown Mode
(SW2, Pole 1)
For Master-Slave and Alternating Circuit configurations only, this mode only needs to be selected on the Master
controller. When this mode is selected, switch in the on position, the entire system will shutdown if any of the controllers,
Master or Slaves, detect an abnormal condition. The system will not run until the abnormal condition is corrected and the
reset button is pushed or the Fault Shutdown mode switch is turned off and the reset button is pushed.
Extended Run Disable
(SW2, Pole 5)
This switch, when in the ON position, will disable the Extended Run Fault detection of the STP-SCI. The Extended Run
Fault will shut off the STP if it has been running for 60 minutes without a change in product flow. A possible application of
this switch is in an emergency generator where the STP is running at all times.
Do not disable the Extended Run if the system requires the pump to be off for line leak detection
i.e. Mechanical Leak Detectors, Electronic Line Leak detection. Disabling the Extended Run Fault
and running the STP continuously could mask a leak in the system.
Table 2
Caution
Summary of Contents for STP-SCI
Page 10: ...10 Figure 2 STP SCI Stand Alone Wiring Diagram...
Page 11: ...11 Figure 3 STP SCI Master Slave Wiring Diagram...
Page 12: ...12 Figure 4 STP SCI Alternating Circuit Wiring Diagram...
Page 13: ...13 Figure 5 STP SCI Master Slave Alternating Circuit Wiring Diagram...
