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Diesel Generator Operation Manual SYSTEM OPERATION Operation Starting Part3-2 Statring

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Diesel Generator Operation Manual SYSTEM OPERATION Operation Starting Part3-2 Statring

Starting at Remote Operator Panel (Auto Mode)&Starting from Remote Location (Switch or Device) (Auto Mode)

&Exercise Start&Cold Starting with Loads


5.6.3  Starting at Remote Operator Panel (Auto Mode)

WARNING: ENSURE THAT ALL PRE-START CHECKS ARE CARRIED OUT BEFORE STARTING THE GENERATOR SET. DO NOT ATTEMPT TO START THE SET UNTIL IT IS SAFE TO DO SO. WARN ALL OTHERS IN THE VICINITY THAT THE SET IS ABOUT TO START.

When the operator panel is mounted remotely of the control panel assembly, the Start button of the Control submenu can also be used to start the generator set. The function of this Start button is identical to the following section, Starting from Remote Location. Refer to Control Submenu (Section 4.7) for additional information.

Note:   The Off/Manual/Auto switch must be in the Auto position to activate the Remote Menu Buttons of the Control submenu.


5.6.4   Starting from Remote Location (Switch or Device) (Auto Mode)

WARNING: ENSURE THAT ALL PRE-START CHECKS ARE CARRIED OUT BEFORE STARTING THE GENERATOR SET. DO NOT ATTEMPT TO START THE SET UNTIL IT IS SAFE TO DO SO. WARN ALL OTHERS IN THE VICINITY THAT THE SET IS ABOUT TO START.

Place the Off/Manual/Auto switch in the Auto position. This allows the generator set to be started from a remote switch or device (e.g., transfer switch or the optional Power Transfer Control feature).

Note:   With the PTC feature activated, the Remote Start input (TB8-4/5) will function as a Test mode switch for the PTC. Refer to Section 5.9.

There are two Start modes that are selectable for the Remote Start input, one for non-emergency start and the other for emergency start. In the non-emergency mode, the control will complete the warm-up at Idle. In the Emergency mode, the generator set will omit the Warm-up stage and will proceed directly to rated speed and voltage.

The Emergency start feature is controlled by connecting a remote contact between TB8-3 and TB8-5. Open the contact for emergency start and close the contact for non-emergency start.

In response to the Remote Run signal, or the control detects the loss of the utility voltage detected through the PTC, the control lights the Remote Start indicator and initiates the starting sequence described in the previous heading (Starting at Switch Panel), except for the following:

In the Auto position, the control will complete the Time Delay to Start (0 to 300 seconds) and the Time Delay to Stop (0 to 600 seconds).

Note: Refer to Adjust submenu (Section 4.9) to change the Time Delay settings.


5.6.5   Exercise Start

WARNING: ENSURE THAT ALL PRE-START CHECKS ARE CARRIED OUT BEFORE STARTING THE GENERATOR SET. DO NOT ATTEMPT TO START THE SET UNTIL IT IS SAFE TO DO SO. WARN ALL OTHERS IN THE VICINITY THAT THE SET IS ABOUT TO START.

Turn the Off/Manual/Auto switch to the Auto position and press and hold down the Exercise  button. Turn the Off/Manual/Auto switch from Auto to Manual and back to Auto.

This will activate the engine control system to complete a pre–programmed exercise sequence. The sequence (Figure 5-1) will vary according to the settings/selections of the system control parameters. The default setting is for Exercise Without Load.

Note:   The InPower service tool is required to modify these parameters. Contact an  authorised distributor for assistance.

Note:   PTC – for PTC Exercise sequence refer to Section 5.9.

The exercise sequence may include running at idle speed, ramping to rated speed, running for a predetermined period of time and timed shutdown. During the exercise operation, the LED lamp adjacent to the Exercise button will light. To manually stop the exercise operation before completion, press the Exercise button. The set will complete its normal cool–down sequence. The control will indicate that the set is in a cool–down mode by flashing the exercise LED.

Note:   PTC – If exercising with load, cool-down mode is activated after retransfer of load to utility. (See Table 5-3 for PTC Exercise sequence).

Note:   All exercise functions are disabled when a remote start signal is received by the control.


5.6.6   Cold Starting with Loads

WARNING: ENSURE THAT ALL PRE-START CHECKS ARE CARRIED OUT BEFORE STARTING THE GENERATOR SET. DO NOT ATTEMPT TO START THE SET UNTIL IT IS SAFE TO DO SO. WARN ALL OTHERS IN THE VICINITY THAT THE SET IS ABOUT TO START.

Use a coolant heater if a separate source of power is available. The optional heater available from Cummins Power Generation Limited will help provide reliable starting under adverse weather conditions. Be sure the voltage of the separate power source is correct for the heater element rating.

Cummins Power Generation Limited recommends equipping diesel standby generator sets (life safety systems) with engine water jacket coolant heaters to maintain the coolant at a minimum of 32°C (90°F) and, for most applications, accept the emergency load in ten seconds or less. Although most Cummins Power Generation Limited generator sets will start in temperatures down to -32°C (-25°F) when equipped with engine water jacket coolant heaters, it might take more than ten seconds to warm the engine up before a load can be applied when ambient temperatures are below 4°C (40°F).

To advise the user of a possible delay in accepting the load, the Engine Cold (Code 1435) message, in conjunction with illumination of the Warning LED, is provided. The engine cold sensing logic initiates a warning when the engine water jacket coolant temperature falls below 21°C (70°F). In applications where the ambient temperature falls below 4°C (40°F), a cold engine may be indicated even though the coolant heaters are connected and functioning correctly. Under these conditions, although the generator set may start, it may not be able to accept load within ten seconds. When this condition occurs, check the coolant heaters for correct operation. If the  coolant heaters are operating correctly, other precautions may be necessary to warm the engine before applying a load.


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