* Calibration Procedures
(1) Press both scroll and down key, then release. Tool program will
appear on the upper and lower displays. Repeat above operation until
appear on the displays.
(2) Press and release the scroll key. The display will show a
number with a prefix " "
(3) Use the up and down keys to change the value on the display
until this value coincide with the ambient temperature in degree C
which is measured by the standard thermometer.
(4) Press the scroll key for at least 3.2 seconds, then release. The
display will blink a moment and then show the ambient temperature in
degree C.
(5) Press and release the scroll key. The display will show a number with
a prefix " " , and the display will show 0.00.
(6) Press and hold down the push-button switch SW1. Don't release
SW1. Press the scroll key for at least 3.2 seconds, then release. The
display now will show 20.00. Release SW1.
(7) Press and release the scroll key. The display will show a number
with a prefix " ". If the number is not equal to 0.0, use the up and
down keys to set the value to 0.0. Then press the scroll key for at
least 3.2 seconds, then release. The " " code is reset.
* Verify Calibration Accuracy
(1) Operate the key pads until the display reaches the calibration mode
( appear on the displays ).
(2) Press and release the scroll key until a code is shown in the display.
The display will indicate process value with respect to the 0-20mA
input. Feed a standard signal to the correct mA input terminals and
examine the accuracy of the display.
(3) Press and release the scroll key again until a code is shown in the
display. Now the display will indicate process value with respect to
the INPT type selected. Feed a standard signal to the appropriate input
terminals and examine the accuracy of the display.
(4) Press and , then release quickly, the display will indicate
process value with respect to the PT100/DIN input. Feed a standard
signal to the PT100 input terminals and examine the accuracy of the
display.
(5) Press and , then release quickly, the display will indicate
process value with respect to the 0-10V input. Feed a standard signal
to the voltage input terminals and examine the accuracy of the display.
* Warm-up drift correction for thermocouple input after completing the
above calibration procedure, connect a thermocouple to terminal 13 and
14 ( observing polarity ) and select a correct " INPT " for the thermocouple.
Switch the power on and let the controller to be powered for at least 30
minutes. If the controller does not measure a correct temperature for the
thermocouple, the following procedures may be employed to correct the
error.
(1) Perform procedure (1) and (2) stated in calibration procedures.
(2) Press and release the scroll key.
(3) Press and release the scroll key again. Now the " " code with zero
value is obtained on the display.
(4) Use the up and down keys to change the " " code value until the
display shows a correct temperature. The unit of " "code
value is always in degree C independent of the selection of " UNIT ".
(5) Press the scroll key for at least 3.2 seconds, then release. The
display will blink a moment and show an accurate temperature. If the
accuracy of the controller is still unacceptable, replace the controller.
7. ERROR MESSAGE & DIAGNOSIS
This procedure requires access to the circuitry of a live power unit.
Dangerous accidental contact with line voltage is possible. Only qualified
personnel are to perform these procedures. Potentially lethal voltages are
present.
Experience has proven that many control problems are not caused by a
defective instrument. See chart below and Table 7.1 for some of the other
common causes of failures:
* Line wires are improperly connected
* No voltage between line terminals
* Incorrect voltage between line terminals
* Connections to terminals are open, missing or loose
* Thermocouple is open at tip
* Thermocouple lead is broken
* Shorted thermocouple leads
* Short accross terminals
* Open or shorted heater circuit
* Open coil in external contactor
* Burned out line fuses
* Burned out relay inside control
* Defective solid-state rellays
* Defective line switches
* Burned out contactor
* Defective circuit breakers
If the points listed on the chart have been checked and the controller does
not function. it is suggested that the instrument be returned to the factory
for inspection.
Do not attempt to make repairs. It usually creates costly damage. Also, it
is advisable to use adequate packing materials to prevent damage in
shipment.
FDC-9200
A1
SV
OUT
A2
PV
F
C
Press both sides of the latch located on
rear terminal block.Hold tightly and
remove the terminal block from the
housing.
(1)
Expand the rear edge of the housing by
using a tool. Pull out the PCB from the
(2)
Dismantling the controller
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