ADAPTER-TIP 4T4704 - Caterpillar

The automatic start/stop system is normally used for standby operation. That is, without an operator. The generator set must start, pick up the load, operate the load, and stop after the load is removed. An automatic transfer switch controls the transfer of load to and from the generator set. When normal (commercial) power has a failure, initiating contactor (IC) part of the automatic transfer switch, closes. This will begin the automatic start sequence. When the engine starts, the control panel instruments will show voltage and frequency. The automatic transfer switch will transfer the load to the generator set when voltage and frequency reach approximately rated value. When normal power returns, the automatic transfer switch will transfer the load back to normal power. Initiating contactor (IC) will open. This will begin the automatic stop sequence. The generator set will also stop automatically if the engine has a failure. For specifications on components located on the engine, make reference to the ENGINE SERVICE MANUAL.The automatic start/stop panel will shutdown the generator set when an engine fault occurs. At the same time, it will indicate by a fault lamp whether the fault is due to high water temperature, low oil pressure, overcrank or overspeed.The automatic start/stop panel can be used on engine systems that are either energized to shutoff (ETS) or energized to run (ETR).
D.C. SCHEMATIC - AUTOMATIC CONTROL PANEL ENERGIZE TO SHUTOFF (ETS) ENGINE SYSTEM [Joint Industrial Council (JIC)]
D.C. SCHEMATIC - AUTOMATIC CONTROL PANEL ENERGIZE TO SHUTOFF (ETS) ENGINE SYSTEM [International Electro-Technical Commission (IEC)]Energize To Shutoff Engine System
AUTOMATIC START/STOP MODULE 1. Off/Reset position.2. Stop position.3. Manual position.4. Auto position.ESPB Emergency stop pushbutton.ECS Engine control switch.OCL Overcrank light.OPL Low oil pressure light.OSL Overspeed light.WTL High water temperature light.Engine Start-Up
The engine can be started (and shutdown) with the ECS (line 24) in the following positions:1. In ECS auto position (4) where start-up and shutdown depends on the closing and opening respectively of a remote start initiating contact (IC) (line 25) (except in case of a fault where shutdown is automatic).2. In manual position (3) where the operator has to turn the ECS to manual position (3). Likewise, the operator has to turn the ECS to position (2) to stop the engine (except in the case of a fault). The emergency stop pushbutton (ESPB) (lines 9, 33 and 34) located on the engine junction box must be in the reset (out) position for proper operation of the control panel.Prior to Crank Termination
With ECS in either the auto position (4) (and the IC closed) or in the manual position (3), the run relay (RR) (line 23) energizes. This causes contacts across RR (8 and 5) (line 7), RR (6 and 9) (line 23), RR (7 and 4) (line 34) to close and across RR (3 and 9) (line 20) to open. RR (8 and 5) (line 7) - Normally open (N.O.) contact across RR (8 and 5) closes to energize the starting motor magnetic switch (SMMS) (line 9). Switch (SMMS) closes its contact (line