Appendix C: Display Alerts - Toro TMC-424E User Manual

TMC424_UGE_466A 1/22/08 5:00 PM Page 30

Appendix C: Display Alerts

FUSE – Station and MV/PS output alert
The TMC-424E features built-in circuit protection to help prevent damage to
the controller caused by an over-current condition on any output terminal.
If the controller detects an overload condition, it will bypass the affected output
and display the word FUSE with the affected station number identifier(s). All
remaining stations will operate as programmed for automatic operation.
If the condition occurs on the Pump Start/Master Valve circuit, all stations using
the master valve will prompt the FUSE message.
To clear the warning, press any button. The controller will continue to operate
as scheduled and will attempt to run all stations as programmed.
IMPORTANT: Clearing the display does not correct the problem. The
controller will retry the affected station(s) at each programmed watering
cycle and bypass the affected station(s) until the problem is corrected.
Before continuing to operate the controller, identify and correct the source
of the problem. In most cases, the FUSE alert condition is caused by a
faulty valve solenoid, pump start relay and/or shorted wire splice.
FLOW or NFLOW – Flow sensor alarms
When flow monitoring is used, the FLOW error message will be displayed when
a station experiences an over-, under-, or critical-flow error. In this event, the
station is skipped, and the next programmed station in sequence is operated.
Error message NFLOW is displayed if the Nominal flow threshold (flow
measured while controller is idle) is exceeded. When a Normally Open master
valve is controlled by the flow module, it will be activated (valve closed).
To clear the warning, press any button. The controller will continue to operate
as scheduled and will attempt to run all stations as programmed.
SEN – Rain sensor active
When the rain sensor is active and all controller outputs are off, the SEN prompt
is displayed. Rain sensor input can be bypassed with the controller's Sensor
Bypass switch, the Timed Bypass feature and rain sensor receiver controls.
For complete information regarding rain sensor operation, refer to the user's
guide provided with the TWRS/TWRFS units.
PAUSE – Watering suspended by TMR-1 handheld remote
When irrigation is paused using the TMR-1 handheld remote, PAUSE will be
displayed.
N O T E : If an optional Display Language is in use, – x – will be shown.
30