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GENERATOR START CONTROL MODULE - MINI (2 Wire to 3 Wire)

GSCM-mini FAULT SHUTDOWN CONDITIONS

The GSCM-mini detects Four (4) fault shutdown conditions (over/under Hz. detection not enabled until the generator has been running

for 60 seconds) and will shutdown the generator after 10 continuous seconds of Hz. fault condition, locking it out until a power down

reset and power back up. The Fault open collector transistor output (terminal 12) will energize a user supplied remote lamp or DC relay

(not exceeding 300 milliamp coil current) whenever a fault shutdown occurs and will de-energize the relay when the fault is reset. The

shutdown conditions are as follows:

Failure to start with 3 cranking attempts (see Section-1:3, 2:2, & 3:3 ). The Gen. Hz Shutdown LED does a double blink and Fault

LED On continuously.

High frequency (over Hz.) condition. The generator AC frequency is monitored on terminals 9 and 10. If the Gen. Hz. enable

terminal #8 is grounded and the generator output frequency exceeds the 55 Hz fixed threshold for 10 seconds, the generator shuts

down and the Generator Hz shutdown LED blinks rapidly. The "Generator Hz" LED blinks during this 10 second period.

Low frequency (under Hz.) condition. If the Gen. Hz. enable terminal #8 is grounded and the generator output frequency remains

below the 45 Hz fixed threshold for 10 seconds, the generator shuts down and the Generator Hz shutdown fault LED blinks slowly.

The "Generator Hz" LED blinks during this 10 second period.

Auto Start within 30 minutes of Max Run Time shutdown (see Section-4:4 ). The Gen. Hz Shutdown LED does a triple blink and

Fault LED On continuously.

LED DESCRIPTION

Start:

one blink every 5 seconds = Ready mode, looking for a start signal;

one blink every 2.5 seconds = auto start mode operation;

one blink every other second= auto start/stop period,

continuous = manual start signal received;

fast blink = 60 second delay after start signal removed before generator started;

Generator Hz

fast blink = over speed condition;

Shutdown:

slow blink = under speed condition;

double blink = Maximum Crank attempts reached, Failed to Start;

continuous = start function disabled, AC Hz detected before starting;

Run:

continuous = GSCM has a valid run signal from generator;

Fault:

continuous = GSCM is in a fault condition and requires a reset;

K1 & K2:

continuous = Status of K1 and K2 Relays "ON"

SPECIFICATIONS

SIZE & WEIGHT: 5.13" L x 2.853" W x 1.35" H, 20 OZ

MOUNTING:

2 screws through tabs,

Mounting holes 3.5" center to center

POWER:

12VDC only

Quiescent current < 10mA

Relay current < 25mA ea.

TERMINALS:

0.250" spade lugs

MANUAL INPUT: B+ (12VDC) input = on condition

Open input = off condition

BATTERY INPUT:

0-60V DC

AUTO START/

STOP THRESHOLD: 12V System 11.5V,

24V System 23.0V,

48V System 46.0V,

ATKINSON ELECTRONICS, INC.

Web Site: www.atkinsonelectronics.com

Start

Stop

13.8V

27.6V

55.2V

Distributed by:

RELAY CONFIG.: Open input = Momentary Crank

(TERMINAL 6)

Grounded input = Maintained Crank

B+ (12VDC) input = Ignition & Crank

FREQUENCY INPUT: 120-240V AC 0-100 Hz

OUTPUT RATINGS: Qty. (2) 10 Amp 28V DC relay contacts

K1 has 38vdc MOV across contact

Qty. (2) Open collector NPN

transistors, Max. 300mA each

FAULT DETECTION: Start Failure, (3 attempts)

Over Hz condition (10 seconds)

Under Hz condition (10 seconds)

AMBIENT TEMP: -40 to 858C

GSCM-MINI-50HZ

SECTION - 7

SECTION - 8

SECTION - 9

REV 5/08