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GENERATOR START
CONTROL MODULE
Operating and Installation Instructions
Many automatic control features:
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Automatic starting, load transfer & shutdown of gas/diesel generators, especially for off-grid uses
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Automatic adjustable voltage set-points for generator battery charging applications, 0-60V DC
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Works with 12, 24 or 48V battery systems
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Provides fault shutdown for low oil pressure/high temperature/under-speed/over-speed conditions
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All sequences have adjustable time periods
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30 day exercise with or without load, battery equalize function available
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Relay driver for emergency shutdown and 30 day exercise remote indication
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12 hour maximum runtime (with override) for automatic starting applications
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Totally sealed for harsh environment operation
ATKINSON ELECTRONICS, INC.
REV 10/05
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Summary of Contents for Atkinson Electronics GSCM
- Page 1 30 day exercise with or without load, battery equalize function available Relay driver for emergency shutdown and 30 day exercise remote indication 12 hour maximum runtime (with override) for automatic starting applications Totally sealed for harsh environment operation ATKINSON ELECTRONICS, INC. REV 10/05...
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Page 2: Features And Applications
GSCM removes the lockout and allows the generator to ON-OFF INPUTS: Grounded input = on condition restart if called. The GSCM is powered by 12 to 24V DC Open input = off condition from a battery bank and will start generators for 12 to 48V systems. - Page 3 GENERATOR START CONTROL MODULE GSCM GSCM WIRING DIAGRAM AND CONTROLLER CONFIGURATION TERMINALS 1-3 POWER INPUT TERMINALS 4-16 INPUTS TERMINALS 17-29 OUTPUTS USE INSULATED TERMINALS TO PREVENT SHORTS! ATKINSON ELECTRONICS, INC. REV 8/06 Web Site: www.atkinsonelectronics.com Distributed by:...
- Page 4 SECTION - 1 The GSCM indicates that it is ready to receive a start signal by blinking the start LED once every 5 seconds. The GSCM is started by shorting terminal 5 to ground (terminal 6) for manual start mode. The module may also start in automatic mode based on a battery voltage (see Section-3) or a 30 day exercise cycle.
- Page 5 SECTION - 3 The GSCM monitors a battery voltage of 0 to 60V DC on battery voltage sense terminal 4. This mode is disabled if the voltage on terminal 4 is less than 6V, (no connection) or either the cut-in or cut-out voltage adjustment has been set to 0V.
- Page 6 SECTION - 4 Powering up the GSCM with a jumper placed on reset terminals 7 and 8 will cause it to enter the adjustment mode. When the crank delay LED is lit the GSCM will accept timing modifications to any of the factory settings. (See diagram in Section-8, which describes each adjustment LED and the setting that it refers to.) Connect your digital volt meter between the test point...
- Page 7 The GSCM Generator Start Controller is NOT AN EMERGENCY SHUTDOWN DEVICE!! Shorting the reset terminals 7 and 8 terminates the current GSCM cycle (see Section 5). If the manual start signal is removed the generator will go through a normal shutdown which may include running for up to two minutes in a “load removed”...
- Page 8 @ 30Hz - TPV = 1.25V 30 Day Exercise Runtime @ deactivated - TPV = 0 Setting the following adjustments to 0 Volts or 5 Volts on the test point causes the GSCM to operate as follows: Adjustment 0 Volts...
- Page 9 This application matches most high speed or portable generator sets that have an electric starter and some type of starter control. These generators should have the ignition switch left in the ‘on’ position. The start commands usually come through the GSCM connected to the remote start terminals.
- Page 10 The low speed gas/propane generators also wire the same as in Application 2. However, the installer should determine ignition type and oil and high temperature safety shutdown wiring. The GSCM is looking for oil and high temperature safety switches that short to ground on a low oil pressure or high temperature condition.
- Page 11 APPLICATION 4 - DIESEL GENERATORS The diesel generator is started by the GSCM in either automatic or manual mode. A field installed relay that will handle the glow plug current is needed if not already installed on the engine. A fuel control solenoid is connected to the K3 (ignition) relay terminals.
- Page 12 The unloader valve bleeds off the pump pressure when de-energized. The standard GSCM “out of the box” looks for a minimum 100V AC frequency input signal. Order a special low voltage generator frequency input version for 12V alternator applications.
- Page 13 1. Run the engine and measure the AC/DC voltage and Hz signal from the alternator’s test point. This will determine how the GSCM is set up. If the voltage is greater than 32VAC, DO NOT connect to the GSCM as it will cause irreversible damage, an in-line dropping resistor is required for voltages up to 80V.
- Page 14 AC output causing the GSCM to see an Over Hz condition. If this occurs, it is recommended that an EMI filter be placed in the AC feedback line (GSCM terminals 13 &14) from the generator (Qualtek Electronics #851-02/001).
- Page 15 GSCM should be wired in parallel with the Combination Switch (Off/On/ Start). The combination switch should be left in the ON position for the generator to be started by the GSCM and the Outback Inverter. The above diagram shows the combination switch, it’s connects made in the three positions, it’s connector and wire colors.
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Page 16: Limited Warranty
4. Atkinson Electronics, Inc. will not accept responsibility for any invoiced goods or services that are not covered by an Atkinson Electronics, Inc. written purchase order. Under no circumstances does Atkinson Electronics, Inc.
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