TECHNICAL DATASHEET #TDAXTC4CO
Thermocouple Module, 4 Channel P/N: AXTC4CO Monitors 4 Type J, K or T Thermocouples CANopen®, RS-232
Description: The Thermocouple Module monitors up to 4 channels of Type J, K or T thermocouples. The temperature information is provided to the engine control system over CANopen®. Temperature is measured in ºC, with a 0.001ºC resolution. The scanner will send temperatures with +/- 1ºC accuracy. The operator has the option of disabling the automatic cold-junction compensation. Average temperature of all the active channels, or all channels from a block of 2, can be broadcasted to the CAN network. The scanner can flag low temperature warnings, high temperature warnings, or high temperature shutdowns to the engine control system. It will also detect and indicate open circuits on the sensor wires. All channels are fully isolated and measure temperatures at the same time. CAN communications are via an isolated CAN interface with CANopen® protocol. A SAEJ1939 model is available. A RS-232 interface allows for quick user adjustments using Tera Term. The power supply was designed for a wide range of nominal inputs of 12V or 24Vdc. Using commercially available CANopen® service tools, the operator can configure the controller to suit a wide variety of applications using SDO object access, per CiA DS-301. An EDS file is provided.
Applications:
Power generator sets and control systems for industrial engine applications.
Ordering Part Numbers: Thermocouple Module, 4 Channels, CANopen®: AXTC4CO EDS file and User Manual #UMAXTC4CO: CD-AXTC4CO Accessories: Mating Plug Kit:
PL-DTM06-12SA-12SB
or AX070000 Mating plug kit with RS-232 connector
Features:
Reads up to 4 Type J, K or T thermocouple inputs (other thermocouple types on request) Full channel to channel isolation and isolation from CAN line, other inputs and power supply Cold junction compensation is provided as an enable/disable function Thermocouple input resolution is 0.001 C. Accuracy is +/-1 C throughout the entire range of the thermocouple input. Average temperature of all the active channels, or all channels from a block of 2, can be broadcasted to the CAN network. Detects and indicates open circuits on the sensor wires 12V or 24Vdc nominal with reverse polarity protection Compact size for mounting directly on the power generator set or remotely Rugged IP67 rated packaging with plug-in connections Operational from -40 to 85C (-40 to 185F) RS-232 port for configuration and diagnostics Using commercially available CANopen® service tools, the operator can configure the An EDS file is provided.
BATT+
BATT-
- INPUT TC_4
SHIELD TC_4
+ INPUT TC_4
- INPUT TC_3
SHIELD TC_3
+ INPUT TC_3
- INPUT TC_2
SHIELD TC_2
+ INPUT TC_2
- INPUT TC_1
SHIELD TC_1
+ INPUT TC_1
SUPPLY VOLTAGE 9V to 36VDC
THERMOCOUPLE INPUT #1
THERMOCOUPLE INPUT #2
THERMOCOUPLE INPUT #3
THERMOCOUPLE INPUT #4
EARTH GND
EMI, SURGE AND REVERSE POLARITY PROTECTION
TC INPUT 16-BIT ADC WITH mV INPUT AND TEMP SENSOR
TC INPUT 16-BIT ADC WITH mV INPUT AND TEMP SENSOR
TC INPUT 16-BIT ADC WITH mV INPUT AND TEMP SENSOR
TC INPUT 16-BIT ADC WITH mV INPUT AND TEMP SENSOR
C EMI
C EMI
ISOLATED DC/DC CONVERTER
INDUCTIVE POWER, CLOCK AND DATA ISOLATION
C EMI
INDUCTIVE POWER, CLOCK AND DATA ISOLATION
C EMI
INDUCTIVE POWER, CLOCK AND DATA ISOLATION
C EMI
INDUCTIVE POWER, CLOCK AND DATA ISOLATION
C EMI
C EMI
+3.3V +5V GND
CAN
RS-232
DSP56F8346 32-bit DSP MICROCONTROLLER
DATA CLOCK DI1 DO1
DI2 DO2
DI1 DO1
DI1 DO1 POWER CLOCK
JTAG
CAN-RX CAN-TX
RXD
TXD
ANA0 ANA1
ANA2
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JTAG DEBUG CONNECTOR
CAN BUS DRIVER
+Vps
RS - 232 TRANCEIVER
+5V
POWER SUPPLIES DIAGNOSTICS
COLD JUNCTION TEMPERATURE SENSOR
CAN_H
CAN_L
CAN_SHLD
RxD
TxD
GND
CAN BUS
RS-232
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Technical Specifications: Input Specifications Power Supply Input
12V or 24Vdc nominal (9…36Vdc power supply range) NB. The maximum total power consumption is <1.5 Watts.
Protection
Surge and reverse polarity protection are provided. Power supply input section protects against short circuits.
Isolation
Full isolation of each channel from the CAN line, other inputs and power supply. Isolation voltage is 1500 Vac (rms) or 2550V for 1 sec. for all channels to power and 50V (rms) for all channels to CAN interface.
All Inputs
4 Type J or K or T Thermocouple Modules (other types on request) All input channels are completely independent of each other and can read the thermocouple temperatures at the same time. Temperature is measured in C with a 0.001C resolution. All inputs send a message to the J1939 bus. Refer to the user manual for details.
Measurement Rate
The measurement rate is 5 scans/Sec. All channels are measured simultaneously. The update rate is 200 mSec.
Common Mode
Common mode rejection is >110
[email protected] 5V p-p (programmable for either 50 or 60 Hz). Common mode input range is +/- 4 V minimum.
Resolution
Temperature data is measured with a resolution of 0.001 C.
Drift
Overall drift with temperature is 50ppm/C of span (maximum).
Accuracy
+/-1 C throughout the entire range of the thermocouple input
Input Protection
Open circuit protection is provided. Over and under temperature detection is provided. High temperature shutdown detection is provided.
Input Configuration
Refer to the user manual for details on configuration.
Shield
Four shield connections are provided.
Ground
Four analog ground connections are provided.
General Specifications Operating Conditions
-40 to 85C (-40 to 185F)
Weight
0.55 lb. (0.25 kg)
Protection
IP67; Unit is conformal coated within the housing. Plugs carry an IP69 rating.
Vibration
MIL-STD-202G, Test 204D and 214A (Sine and Random) 10 g peak (Sine) 7.68 Grms peak (Random)
Shock
MIL-STD-202G, Test 213B: 50 g
Supply Current
150 mA @ 12V, typical 90 mA @ 24V, typical
Microprocessor
Motorola DSP56F8346
Control Logic
User programmable functionality uses SDO object access per CiA DS-301 with commercially available CANopen® tools. Settings are saved to non-volatile memory upon command. Application-specific software versions are available on request. Refer to the user manual for details.
RS-232 Port
The controller’s RS232 port interfaces to a serial port (i.e. COM1) on a PC (115200 Baud Rate, N81, Xon/Xoff Flow Control). If the Axiomatic plug kit with a built-in RS-232 connector is not used, then the end user can make a RS-232 cable with the following pinout. Controller Grey Connector, Pin 2 -> TXD -> female DB-9 Pin 2 Controller Grey Connector, Pin 3 -> RXD -> female DB-9 Pin 3 Controller Grey Connector Pin 1 -> GND -> female DB-9 Pin 5
User Interface
EDS file is provided to interface to standard CANopen® tools.
CAN Interface
1 CAN 2.0B port, protocol CiA CANopen® By default, the Thermocouple Scanner transmits the process value (object $7130) according to device profile in the CiA Standard DS-404. (SAE J1939 model is available)
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Bit-rate
Default bit-rate is 125 kbit/s. Other bit-rates can be selected using Layer Setting Services. Refer to the User Manual for details.
Termination
It is necessary to terminate the network with external termination resistors. The resistors are 120 Ohm, 0.25W minimum, metal film or similar type. They could be placed between CAN_H and CAN_L terminals at both ends of the network.
Diagnostics
Available on mandatory object $1003, Pre-Defined Error Field Additional information for diagnostic and testing purposes can be obtained using the RS-232 port and Tera Term.
Electrical Connections
Refer to Table 2.0.
Deutsch DTM series 24 pin receptacle (DTM13-12PA-12PB-R008) Mating plugs kits are available on request and include Deutsch DTM06-12SA and DTM06-12SB with 2 wedgelocks (WM12S) and 24 contacts (0462-201-20141). 20 AWG wire is recommended for use with contacts 0462-201-20141.
Table2.0 - Typical Connections, AXTC4 Grey Connector Pin # 1 2 3 4 5 6 7 8 9 10 11 12
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Function RS-232_GND RS-232_TXD RS-232_RXD Not Used Frame GND Battery Battery + Not Used Not Used CAN_L CAN_H CAN_Shield
Black Connector Pin # 1 2 3 4 5 6 7 8 9 10 11 12
Function TC IN1+ TC IN1TC1_Shield TC IN2+ TC IN2TC2_Shield TC3_Shield TC IN3TC IN3+ TC4_Shield TC IN4TC IN4+
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Enclosure and Dimensions
High Temperature Nylon housing, Deutsch IPD PCB Enclosure (EEC-325X4B) 4.62 x 5.24 x 1.43 inches 117.42 x 133.09 x 36.36 mm (W x L x H excluding mating plug)
The CANopen® 4 Channel Thermocouple Scanner is compliant with the following CiA profiles. CiA DS-301 V4.1 – CANopen® Application Layer and Communication Profile (CAN in Automation 2005) CiA DS-305 V2.0 – Layer Setting Service (LSS) and Protocols (CAN in Automation 2006) CiA DS-404 V1.2 – CANopen® profile for Measurement Devices and Closed Loop Controllers (CAN in Automation 2002) The documents are available from the CAN in Automation e.V. website http://www.can-cia.org. Note: CANopen® is a registered community trade mark of CAN in Automation e.V. Specifications are indicative and subject to change. Actual performance will vary depending on the application and operating conditions. Users should satisfy themselves that the product is suitable for use in the intended application. All our products carry a limited warranty against defects in material and workmanship. Please refer to our Warranty, Application Approvals/Limitations and Return Materials Process as described on www.axiomatic.com/service.html. Form: TDAXTC4CO-03/03/16
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