Check Remote Switch 2 (REMS2)
system
Description
Remote Switch 2 stayed activated for more than five seconds, and the unit can alarm only, force low engine speed, or shut down.
Activation Conditions
Remote Switch 2 is set to activate an alarm if the switch is activated (opened or closed, depending on switch type) for more than five seconds.
Unit Behavior
Engine and Electric Operation: May be configured as alarm only, alarm and force low engine speed, or alarm and shutdown.
Reset Conditions
Alarm Only: Auto Reset after the switch has deactivated for more than five seconds. Shutdown: Auto Reset after three minutes (minimum off time for door open condition) and the switch has deactivated for more than five seconds.
Corrective Actions
If a switch is installed: 1. Determine what REMS2 is controlled By - REMS2 may be connected to a compartment door or some other device and used to remotely control the compartment. Locate the device used as REMS2. 2. Check To See If REMS2 Has Activated - Inspect device used to activate REMS2. for example, compartment door must be closed, and switch must be deactivated. 3. Check “REMS2 (Remote Switch 2) Configuration - Verify that Configuration is set for the type of switch being used (i.e. when switch is activated, switch contacts are closed; etc.) Configuration must agree with switch type. Refer to Section 5.2.3. 4. Check Wiring a. Visually inspect wiring to Remote Switch #2. Wiring must be connected. b. Visually inspect condition of switch Must not be damaged, wet, corroded, etc. c. Check circuit. (See wiring schematic Section 10.2.) With the switch contacts closed, ccheck for continuity from 1-2MSM-15 through the wiring and switch back to 1-2MSM-25. 5. Temporary Solution Tip - In the event of a defective switch that can not be repaired or replaced, and the switch is forcing the unit into a shutdown, this alarm may be temporarily overridden by setting the correct Functional Parameter. In the Functional Parameter list set OVERRIDE REMS2 SHUTDOWN to YES. If a switch is not installed: Locate and inspect 10-position connector for optional sensors and switches (REMSN, see wiring schematic Section 10.2). Connector must have cap on. No corrosion or moisture inside connector. If there is a problem with the connector and there are no remote sensors or switches in the unit, the connector may be removed and each individual wire separated from the others, terminated and insulated with heat shrink.