Accuthermo ATEC302 User manual

ATEC302
TE Temperature Controller
Reference Manual
Rev 1.10
Mar, 2018
Accuthermo Technology Corp.

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Table of Content
1. Introduction..................................................................................................................3
1.1 Using Manuals ...................................................................................................... 4
2. System Overview .........................................................................................................5
2.1 System Configuration Overview........................................................................... 5
2.2 Panel Dimension & Cutout ................................................................................... 6
2.3 Front Panel Description ........................................................................................ 6
2.4 Back Panel Wiring Diagram ................................................................................. 7
2.5 USB Wiring & Color Code................................................................................... 7
2.6.1 Sensor Type & Measurement Range.................................................................. 7
2.6.2 Sensor Type & Dip-switch setting ..................................................................... 9
2.7 Menu (Parameters) Overview ............................................................................... 9
2.8 Error Message & Troubleshooting........................................................................ 9
2.9 Power Input......................................................................................................... 10
3. Front Panel Operation ................................................................................................11
3.1 Push Buttons ...................................................................11
i. Return to Top Level Display......................................................................11
ii. Go to Menu Mode......................................................................................11
iii. Select Parameters in Menu.........................................................................11
iv. Changing Parameter value .........................................................................11
3.2 Power UP Display Sequence............................................................................... 12
3.3 Change the SV (Set Value) Number ................................................................... 12
4. Parameters Description ..............................................................................................12
4.1 Communication Protocol .................................................................................... 12
4.1.1 Communication Method .......................................................................... 12
4.1.2 Communication Protocol Format............................................................. 13
4.1.3 Communication Read/Write Format........................................................ 13
4.1.4 Prior to Writing Your Own Software ....................................................... 15
4.2 Read Only Parameters [x03] Table ..................................................................... 15
4.3 Read[x03]/Write[x06] Parameter Table .............................................................. 18
4.4 Error Read Back Parameter Table....................................................................... 23
5. Control Method..............................................................................................................24
5.1 PID Control:........................................................................................................ 24
5.2 Auto-tune Function: ............................................................................................ 24
5.3 Programmable Step Control Profile:................................................................. 256
5.4 Alarm Function: ................................................................................................ 267
6. SPECIFICATIONS ........................................................................................................28

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1. Introduction
This manual contains information for the installation, operation and tuning of your Accuthermo ATEC302
TE Panel Temperature Controller, ATEC402 Din-Rail TE Temperature Controller and FTX700 High
Power TE Amplifier/Driver. ATEC302 can also be connected to FTX300 or FTX100 H-bridge amplifiers.
ATEC302
TE Panel Controller
ATEC402 (alpha ver.)
TE Din-rail Controller
FTX700D
TE Amplifier/Driver
FTX100/FTX300
TE H-bridge Amp
Pic Pic Pic
FTX100(6Amp)
FTX300 (12Amp)
RS232/RS485/USB USB/RS485 5~36Vdc (30Amp)
X100:0~7V, X300:7~15V
The Accuthermo microprocessor controllers are FUZZY ENHANCED “proportional + integral +
derivative” (PID) controllers that come in with industry standard DIN72x72mm and Din-Rail size. The
input is configurable and allows selection of input between thermocouples, RTD and Thermistor*.
The TE Amplifier is capable of running up to 700Watt of power. It is a very efficient TE power amplifier.
The amplifier can run without force air (fan) under 350Watt in ambient condition. Over 350Watt, it is
recommended to add in fan for proper ventilation.
The controller can talk to PC through a dedicated USB cable or a RS232 communication daughter card
(option on ATEC302) that Accuthermo provides. And it comes with very sophisticated PC software for
FREE.
The controllers can also be serial linked together and talk to one PC by using RS-485 communication
method (option on ATEC302, default on ATEC402).
Caution: When USB cable is connected to the controller, the RS232 or RS485 communication daughter
card should not be plugged inside the controller. Otherwise, it will have conflict.

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1.1 Using Manuals
There are three manuals for this system:
Reference Manual (this one): The manual is designed for user who wants to use the front panel buttons to
controller the system. The users who want to write their own program to control the system. It provides the
instructions of how to use the front panel buttons, the parameter table. Users are encouraged to read the
following two manuals first.
TE Temperature Controller System Installation Guild: This is the must read document for user to putting the
system together. It is a step-by-step guide, with lots of pictures for easy reading.
Software Installation Guild & User Manual: The software contains a very completed function sets for user to
change parameters; control and run the system; monitor and logging data. It took us more than a year to design
and develop the software. More than 95% of the users find the software can satisfied their task without
re-writing their own software.

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2. System Overview
2.1 System Configuration Overview

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2.2 Panel Dimension & Cutout
2.3 Front Panel Description
LED Indication:
KLK keypad Lock: when keyboard is locked, the push bottom is not accessible, only working through the software
communication. LED lights on when keypad is enable.
PGR Program Ramp: LED lights on when temperature is ramping up/down.
PGS Program Soak: LED lights on when temperature is at soaking stage.
ENB Controller Enable: LED lights on when controller sent the Enable signal to the amplifier.
DIR Controller Hot/Cold Direction: LED indicator for the hot/cold direction command signal.
PWM Pulse Width Modulation Signal: LED signal lighted when PWM signal is send from controller to amplifier. During the
low duty cycle, the LED might not be bright enough for visual.
AL1 Alarm #1 indicator: LED on when Alarm #1 is triggered.
AL2 Alarm #2 indicator: LED on when Alarm #2 is triggered.
AT: Auto Tune LED
light indicator
MAL: Manuel Control
LED Light Indicator
PV: Process Value
The measured temperature
SV: Set Value
The expecting temperature
SET / LEFT / UP / DOWN
4 Control Buttons

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2.4 Back Panel Wiring Diagram
2.5 USB Wiring & Color Code
Caution: If the USB cable has extra wire with RED (+5V) and Black (GND), user should either cut them off
(recommended) or isolate those leads. Otherwise, possible electric short could happen.
2.6.1 Sensor Type & Measurement Range
There are three types of sensors supported by the TE Panel controllers
Thermocouple (TC): Thermocouple is a 2-wire temperature sensor and has polarity for each wire. Please follow
the installation guild for proper connections. Accuracy: ±1°C
TYPE Range
J -120.0°C ~ 200.0°C
K -120.0°C ~ 200.0°C
T -120.0°C ~ 200.0°C

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Thermistor (TR):
Thermistor is a resistance based temperature sensor and does not have polarity.
TYPE
TR1 (2.252K ohm)
TR2 (10K ohm)
RTD PT-100 (PT): These can be 2-
wire or 3
(PTB) together. Accuracy: ±0.2°C
TYPE
DPT(PT100)
2.6.2
Sensor Type & Dip
SW1.1
SW1.2
TC ON
PT ON
TR OFF
There is a Dip-
Switch at the inside of the controller. The user needs to pull out the controller from back case.
There are two blue-color Dip-
Switch. Adjust the on/off setting according to the sensor type you
Example: TR: Thermistor 2252 or 10k ohm
1. Pull out the Panel Cover
Note:
The yellow circles are the Dip
communi
cation daughter card (either for RS232 or RS485) position.
Caution:
if USB cable is used, the communication card (red circle area) should have no card plug in.
Remove the plug-
in card if user wants to use USB communication cable.
Thermistor is a resistance based temperature sensor and does not have polarity.
Range
-50.0°C ~ 150.0°C
-20.0°C ~ 150.0°C
wire or 3
-wire RTD sensors. If 2-
wire is used, just short the pin7 & pin8
Range
-120.0°C ~ 200.0°C
Sensor Type & Dip
-Switch Setting
SW1.2 SW1.3 SW2.1 SW2.2
OFF OFF ON ON
OFF OFF OFF ON
ON ON OFF OFF
Switch at the inside of the controller. The user needs to pull out the controller from back case.
Switch. Adjust the on/off setting according to the sensor type you
Example: TR: Thermistor 2252 or 10k ohm
– SW1: OFF-ON-ON , SW2: OFF-OFF
2. Sensor Setting Switch
The yellow circles are the Dip
-
Switches and Switch setting table, the red circle showing the
cation daughter card (either for RS232 or RS485) position.
if USB cable is used, the communication card (red circle area) should have no card plug in.
in card if user wants to use USB communication cable.
8
Thermistor is a resistance based temperature sensor and does not have polarity.
wire is used, just short the pin7 & pin8
Switch at the inside of the controller. The user needs to pull out the controller from back case.
Switch. Adjust the on/off setting according to the sensor type you
want to use.
Switches and Switch setting table, the red circle showing the
if USB cable is used, the communication card (red circle area) should have no card plug in.

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2.7 Menu (Parameters) Overview
Refer to Sec. 4.3 Parameter Table (Page 18) for Front Panel operation instruction
2.8 Error Message & Troubleshooting
Symptom Probable Solution
PV value flashing -Input signal below the low limit
-Incorrect input sensor selection
-Set a higher value to high limit.
-Check connect input sensor selection.
PV value flashing -Input signal below the low limit
-Incorrect input sensor selection
-Set al lower value to low limit.
-Check correct input sensor selection
-Sensor break error
-Sensor not connected
-Replace sensor
-Check the sensor is connected correctly
-A/D converter damage
-Unit must be repaired or replaced.
-
Check for outside source of damage such as
transient voltage spikes.

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Keypad no function -Keypads are locked,
-When key locked, LED is off.
-Set” ”to a proper value
-
If you lock the keypads, you can only use our
PC software to unlock it (page. 16)
Process value
unstable
-
Improper setting of Pb, Ti, Td
and CT
-Start AT process to set Pb, Ti, Td
automatically
-Set Pb, Ti, Td manually
No heat/cold or output
-No heater/cold power
-
Output device defective or
incorrect output used
-Check output wiring and fuse
-Replace output device
All LED’s and display
not light
-No power to controller -Check power lines connection
Process Value
changed abnormally
-Electromagnetic Interference
(EMI) or Radio Frequency
Interference (RFI)
-Suppress arcing contacts in system to
eliminate high voltage spike sources.
Separate sensor and controller wiring from
“dirty” power lines. Ground heaters
Entered data lost -Fail to enter data to EEPROM -Update EEPROM again
2.9 Power Input
The default setting is 9V-36V DC. There is a jumper inside the controller that you can set it for a fixed 5VDC.
When using 5VDC as supply, the USB cable CANNOT work.
When using 5V setup. Not only change the 5V jumper position; there are two components next to jumper R111
and D101 needed to be shorted. Otherwise, they would affect the voltage drop of 5V.
If the R111 and D101 are shorted, the ’Input power reverse protection’ is no longer working. Please be very
caution on it. If that was damaged, it won’t be covered by our standard warranty.
If the jumper has converted for 5VDC, connecting to supply power other than 5V will damage the
system; and the warranty is void.