GAC IGC700 Series Manuel - Page 8

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Accessing Parameters
When entering large numbers into parameter settings, it is
much easier to enter the number as a 4-digit number. For
example, to enter 125 teeth into the Flywheel Teeth
parameter, it is easier and faster to press 0-1-2-5 and then
press the ENTER button than it is to press to + button one
hundred twenty five times.
For smaller changes and for fine-tuning certain parameters
such as RPM settings, the +/- buttons are more useful.
To access the following parameters, you must be in SETUP
mode.
Flywheel Teeth
NOTE: This is a critical parameter because the IGC700
uses it to calculate Speed and Overspeed values. Please
take extreme care when modifying this value.
TIP: The value can be directly entered by using the
number buttons on the keypad. All numeric keypad
entries must contain 4 digits. For values of less than 4
digits you must enter zero(s).
Example: pressing 0,1,0,9 and then the ENTER button
will set the FLYWHEEL TEETH parameter to 109.
1.
Press and hold the MENU button until the LED
representing 0 lights up indicating that Menu 0 is
active.
2.
Press the 5 button to access the FLYWHEEL TEETH
parameter. The Bar Graph will flash the current value
for this parameter.
3.
Enter the correct number of teeth and press the ENTER
button.
4.
If you are configuring the IGC700 for the first time or
you have changed the Flywheel Teeth parameter, you
must proceed to the next step, OVERSPEED. If not,
save and exit the setup routine by holding down the
RUN button until the RUN/SETUP LED stops flashing.
Overspeed
1.
Press the MENU button illuminating LED 1. When
LED 1 comes on, you will be in MENU 1.
2.
Press the 5 button to select the OVERSPEED
parameter. The Bar Graph will flash out the current
RPM value of the OVERSPEED parameter. This value
is based on the Flywheel Teeth parameter you
previously entered. Therefore, you must configure the
NOTE: This is also a critical parameter as it is a
necessary safety feature.
OVERSPEED parameter every time you change the
Flywheel Teeth parameter.
3.
Using the numeric keypad, enter the 4-digit RPM value of
the desired OVERSPEED setting. If you make a mistake
just re-enter the complete 4-digit number again.
4.
Press the ENTER button to apply the new RPM value.
Connect the SPEED SELECT terminals R & S according to
one of the four settings shown in Table 1 on page 3. If you
have selected Variable Speed mode, then skip over Fixed
Speed Operation and go directly to Variable Speed Operation
below.
Fixed Speed Operation
1.
Access Menu 0 (LED 0).
2.
Press the 4 button to access the FIXED SPEED
parameter.
The Bar Graph will flash out the current
RPM.
3.
For small RPM changes, use the +/- buttons to adjust the
current RPM setting of the FIXED SPEED. DO NOT
press Enter.
4.
For a large RPM change, use the Numeric keypad Entry
method.
5.
Re-configure the SPEED SELECT connections according
to Table 1 to set up additional fixed speed settings and
repeat steps 1 - 5 until all fixed speeds are configured.
Variable Speed Operation
1.
Make sure the potentiometer is attached as shown in
Diagram 1 on page 2.
2.
Turn the Potentiometer such that maximum voltage is
present on Terminal E. This can be verified by using the
IGC700 Bar Graph Display in the next steps.
3.
Access Menu 0. (LED 0).
4.
Press the 7 button to gain access to the VARIABLE
UPPER LIMIT parameter.
IGC700 to remember the Potentiometer's maximum
position. At this point, the Bar Graph display also shows
a representation of the voltage on Terminal I. If this reads
zero then turn the wiper on the pot all the way in the other
direction and repeat steps 3 and 4. If the Bar Graph now
reads higher, then you must swap the wires at terminal J
and K. Repeat steps 3 and 4.
8
Speed Settings
This step also causes the