Temperature Controller
Auto Tuning
Automatic Tuning has been performed at factory for all machines. Automatic Tuning must be performed by the customer for the
following reasons; When equipment is other than 240v (e.g. 208v), replacing a controller, replacing a sensor, and/or new heating
elements. Controller set point value must be set to 500°F (260°C) for 120V units, for all other units set to 700°F (372°C). Set point value
must be entered before going to the auto tuning selection screen. Auto tuning should only be performed when the heater temperature is
below 300° F (150° C).
Procedure
1) Press and hold the scroll button until A
-
T is displayed. Release the button.
2) Press and hold the scroll button again until the output indicator displays TUNE and is flashing. Release the button.
3) After releasing the button, the work PASS will be displayed. Press the scroll button one time and the word will disappear.
4) TUNE will continue to flash on the output indicator until the auto tuning process is complete.
5) The process can take as long as 30 minutes.
Manual Mode
In the event of a faulty sensor, the display will read
“
SbEr
”
and the controller will automatically go into manual mode. Directly below the
“
SbEr
”
will be H0.00 and the output indicator will display MAN and be flashing. (Display on controller will show H0.00. Press the up or
down arrow to set percentage of time the heater will cycle on and off. (i.e. a setting of 80.0 will cycle heater on 80% of time and off
20%). Controller can remain in this mode while resuming production.)
If the need arises to put the controller in manual mode for any reason other than a faulty sensor, follow the procedure below.
Procedure
1) Press and hold the scroll button until the work HANd is displayed. Release the button.
2) Press and hold the scroll button again until the output indicator displays MAN and is flashing.
3) After releasing the button, the work FILE will be displayed. Press the scroll button one time and the word will disappear.
Celsius /
The temperature controller on your Vastex Infrared dryer is normally set to Fahrenheit as a default. Follow the procedure below to
Fahrenheit
switch the controller from Fahrenheit to Celsius.
Procedure
1) Press and hold the scroll button until the word SEt is displayed.
Release the button.
2) Press the scroll button 5 times until the word UNIt is displayed.
Below the word UNIt you will see °F in green. This indicates that the
temperature displayed in in Fahrenheit. If °F is displayed, press the
down arrow button to change to °C (Celsius). If °C is displayed, press
the up arrow button one time to change to °F (Fahrenheit). If PU is
displayed in green, don
’
t panic, just press the down arrow button to
either °F or °C.
NOTE:
The temperature controller was updated on or
around mid November 2020. Model number changed
from a TEC
-
9090 to TEC
-
9400.
Symptom
What to check:
No Heat & power
light is off
•
Incoming power.
•
Shop Disconnect, Fuses, or breakers.
•
Power cord and it
’
s connections
No Heat & power
light is on
•
Check for burned out heater
•
System fuses on control panel
•
Note operation of pilot lights, Call Vastex
Heat too high
•
Note operation of pilot lights
(Relay can stick on or off)
Heat too low
•
Note operation of pilot lights
(Relay can stick on or off)
Temperature
fluctuates
•
Check sensor location
•
Clean sensor connections
•
Eliminate Wind or Draft in shop
•
Note operation of pilot lights, Call Vastex
Belt Stopped or
is erratic
•
Check plug at motor power cord
•
Check sprocket and chain
•
Check output voltage at plug (90VDC)
•
Check for obstruction in belt path
•
Check belt tension
•
Check brushes on motor
(Optional HD
motor)
Temperature Controller Error Codes
Troubleshooting
Symptom
Cause (s)
Solution (s)
5 b E r
Sensor break error
Replace RTD or sensor.
Use manual mode operation
L L E r
Process display beyond the low
range set point
Re
-
Adjust
LL
,
t
value
H
L E r
Process display beyond the high
range set point
Re
-
adjust
H
L
,
t
value
A
H
E r
Analog hybrid module damage
Replace module. Check for
outside source of damage such
as transient voltage spikes
A t E r
Incorrect operation of auto tune
procedure Prop. Band set to 0
Repeat procedure. Increase
Prop. Band to a number larger
than 0
o P E r
Manual mode is not allowable for an
ON
-
OFF control system
Increase proportional band
C
5 E r
Check sum error. Values in memory
may have changed accidentally
Check and reconfigure the
control parameters
Process Value Display
Set Point Value Display
Return Button
Down Arrow Button
Up Arrow Button
Scroll Button
Alarm Indicator
Output Indicator
!
Doc. # 01
-
28
-
013
Pg. 19
