Fastrax Hellfire 900, Инструкция по установке, эксплуатации и обслуживанию

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E.20 Terminal Blocks
1. The controller interconnects with the control panel by
means of 2 board level headers, TB-1 and TB-2, which
accept wire harness plug connectors.
2. The controller and EMS module connect via a ribbon cable
that plugs into the 10-pin header found on each. The
ambient temperature sensor connects via the RJ11 header.
Table 12 – Terminal Blocks
Name Description
TB-1 Precipitation detector 24
V AC power supply
TB-2 Precipitation detector
JP1 Ambient air temperature sensor RJ11 header
10-Pin header* EMS power and signal connection
* Located in the upper left corner.
E.21 Inputs and Outputs
1. PRECIPITATION DETECTOR: As its name implies, it
senses precipitation that can be in the form of rain or
snow.
Snow landing on the detectors heated cone and heated
sensing grid, melts to form water drops that can be sensed.
The head design draws blowing snow into the detector
where it can be sensed.
See the installation section for mounting instructions.
There are no adjustments on the detector itself. Sensitivity
adjustments are made on the controller.
2. AMBIENT TEMPERATURE SENSOR: The ambient
temperature sensor is mounted beneath the air intake
hood. The controller compares the measured temperature
to the SNOW-RAIN and the LOW TEMP set point.
3. RAIL THERMOSTAT: The rail thermostat optimizes
fuel consumption and performance while the heater is
requested. It functions independently of the EMS module,
cycling the heater off when the rail temperatures rises
above 9°C (49°F) then back on again once the temperature
drops below 3°C (37°F).