GAC IGC700 Series Manual - Page 15

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Bar Graph flashing when power is applied to IGC700

This indicates the IGC700 configuration is corrupt.

recommended to reconfigure the unit before attempting to

start the engine.

Discrete Output Not Working

This terminal sinks current.

current is 20mA. This means the device being controlled with

this terminal must be tied to a positive voltage and must not

require more than 20mA to operate. This terminal turns on

when the IGC700 is running under normal conditions. If the

IGC700 overspeeds then this terminal switches to an open

circuit.

Engine Not Running at correct Fixed Speed.

Are Terminals R and S properly configured? If nothing

is connected to these terminals the IGC700 is configured

for Variable Speed. Please refer to TABLE 1 on page 3.

Make sure the correct number of flywheel teeth has been

configured.

This function is accessed in the SETUP

mode under MENU 0, button 5. The IGC700 will flash

out the current number of teeth as a 4-digit code. If this

number is not correct then enter the correct number of

teeth as a 4-digit number followed by the ENTER button.

Make sure the Fixed Speed is correctly set.

SETUP mode and select MENU 0, Button 4.

IGC700 will flash out the present RPM speed. If this is

not correct, enter the 4-digit speed in RPM and press

ENTER. The IGC700 will then flash the updated RPM

Speed.

Engine Not Running at Correct Variable Speed.

Note: The maximum RPM speed is based on the number of

teeth selected. Typically, the maximum RPM speed is 5000

to 6000 RPM.

 Make sure potentiometer is connected properly to

terminals I, J and K. Refer to the configuration section in

this manual to setup the potentiometer.

configuring the potentiometer verify the RPM value

entered for MAXIMUM RPM SPEED (MENU 0, Button

7) is greater than the RPM entered for MINIMUM RPM

SPEED (MENU 1, Button 7). When doing this you

should also verify the Bar Graph displays a higher

reading for MAX. RPM SPD than for MIN. RPM SPD.

 Make sure the FLYWHEEL TEETH parameter is correct.

This function is accessed in the SETUP mode (MENU 0,

Button 5). The IGC700 will flash out the current number

of teeth as a 4-digit code. If this number is not correct

It is

The typical amount of sink

Access

The

When

then enter the correct number of teeth as a 4-digit number

followed by the ENTER button.

Overspeed During Starting (Tripping Fault LED)

Note: Each time one of these parameters is selected, you

must enter a 4-digit value.

This condition is caused by the OVERSPEED parameter

being too low, the IGC700 not properly tuned for the

application or the CRANK TERMINATION parameter being

set too high. Recheck these parameters.

Overspeeding During Load Transient (Tripping Fault

LED)

OVERSPEED parameter is set too low or IGC700 not

properly

tuned

for

OVERSPEED setting and try retuning the engine.

Overspeeding During Speed Changes (Tripping Fault

LED)

OVERSPEED parameter is set too low or the SPEED RAMP

ACCELERATION parameter is set too low.

increase the Speed Ramp Value in SETUP mode (MENU 0,

Button 9). The Bar Graph will display the current Speed

Ramp setting. Press the + button to increase this value. This

causes the engine to accelerate more slowly reducing the

overshoot.

SETUP mode is not accessible

Press and hold the SETUP button until the RUN/LED lamp

starts to flash. Now you must enter the valid 4-digit Security

Code [1] [2] [3] [4] followed by the ENTER button. Each

unit has a specific Security Code. If you forgot the code you

must contact your GAC distributor from where the IGC700

was purchased.

Note: Once you've entered the proper code the IGC700 will

flash of the Software Version Number.

the

application.

Recheck

the

You can