Opt Lasers TEC-8A-24V-PID-HC, Operating Manual

Page 1: ... Manual Contact and Shipping Company Information Tomorrow s System Sp Z o o Tomorrow s System Sp Z o o Okulickiego 7 9 hala G39 Pułaskiego 125 35 05 500 Piaseczno 15 337 Białystok Poland Poland tel 48 515 180 752 NIP PL5423238556 ...

Page 2: ...ned Not connected SJ1 jumper mode 9 Closed Connected SJ1 jumper mode 10 Connectivity 11 Serial Protocol 12 Configuration command 12 Single byte commands 12 How to connect PC to TEC 8A 24V PID 13 Communication via PuTTY 15 Basic Program 18 Recommendations and Requirements 21 Protection 21 Related products 22 ...

Page 3: ...Its small size simplicity of regulation and versatility make it widely used in many areas It is dedicated to work with 12 V thermocouples Peltier modules yet it does well with all modules whose supply voltage falls in the range of 5 to 24 V With the use of four trimmers the temperature setpoint as well as values of the PID controller parameters can be set The controller operates in PWM mode Pulse ...

Page 4: ... bits no parity 1 stop bit 1 Serial Transmission Yes Serial Reception Yes No Temperature Stabilization Accuracy 2 C 2 C 2 C Temperature Tracing Accuracy 0 05 C Cooling or heating work Yes Temperature sensor P0K1 202 3FW B 007 10k NTC B 3950 Temperature range T min and T max 100 to 100 C 0 to 50 C 0 to 50 C Heat sink required No Dimensions 45 x 60 mm Mounting holes 37 x 52 mm Mounting holes diamete...

Page 5: ...Pinout ...

Page 6: ...Electrical Wiring The TEC 8A 24V PID HC driver can be power supplied in three different ways 1 Using two PSUs 2 Using one PSU ...

Page 7: ...3 Using one PSU with closed SJ2 ...

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Page 9: ...sions 120 C in the Advanced 100 100 version the Peltier module is switched off 4 If the measured temperature is out of Tmin Tmax range the WARNING LED is ON and the open collector output OC is connected to ground The PID regulator works normally unless the overriding limit mentioned before is exceeded In the Advanced versions when the SJ1 jumper is open Tmin and Tmax have fixed values 0 C and 70 C...

Page 10: ...SJ1 jumper mode 1 Adjustment with use of UART port Using PC and USB to TTL converter it is possible to send valid only for advanced version and read parameters to from the regulator While using this mode trimmers are not working and user gets control via USB to TTL communications which allows of automatization of cooling and heating process Additionally it is possible to set Tmax and Tmin values w...

Page 11: ...Connectivity Figure 1 TEC 8A 24V PID Connection scheme UART parameters 38400 bits second 8 data bits even parity No parity stop bits 1 flow control No ...

Page 12: ... setpoint P I D T min T max T setpoint C target temperature value The device checks output temperature via thermistor and manages output current to reach temperature setpoint P PID proportional coefficient in range from 0 0 to 20 0 I PID integral coefficient in range from 0 0 to 20 0 D PID derivative coefficient in range from 0 0 to 20 0 T min C lower threshold which is checked by the driver OC T ...

Page 13: ...ed temperature OC status of the open collector 0 disconnected from GND or 1 connected to GND PWM Negative values indicate cooling phase and positive ones indicate heating phase The absolute value of the parameter inform about intensity How to connect PC to TEC 8A 24V PID After setting up connections Figure 1 and powering up the TEC 8A 24V PID we should check if the converter has been recognized an...

Page 14: ...Figure 2 Device Manager USB to UART converter driver is installed COM12 ...

Page 15: ...Open category Connection Serial Make sure transmission parameters are set properly look for chapter TEC 8A 24V PID Connectivity and check parameter values In field Serial line to connect to write the name COM of the USB to UART converter shown in the device manager operating system Figure 2 ...

Page 16: ...field Serial line and Speed should update There is an option to save configuration You can name configuration in field under Saved sessions then press the Save button The list will update To use one of saved configurations simply check one from the list then press Load button ...

Page 17: ...om the power supply and after couple seconds connect again You will receive initialization info from the device shown below 5 Now we are able to send commands to the device Single byte commands can be send by hand Type R and after couple of seconds type r 6 To send a configuration command you should write it first in any text editor copy it and press the right mouse button on the terminal window T...

Page 18: ...on is lost the driver will not take any action and the open collector output is grounded 3 If the measured temperature exceeds an overriding limit of 70 C in the NTC 10k versions 120 C in the Advanced 100 100 version the Peltier module is switched off 4 If the measured temperature is out of Tmin Tmax range the WARNING LED is ON and the open collector output OC is connected to ground The PID regula...

Page 19: ...ly unless the overriding limit mentioned before is exceeded 6 In the Basic version SJ1 is not working 7 Open collector OC is grounded Warning LED is ON and Peltier current is OFF at more than 70 degrees Celsius 8 When temperature drops below 70 degrees the driver goes back to normal work 9 The parameters exchanged with UART Tz Temperature setpoint Tr Temperature measured P proportional parameter 0...

Page 20: ...d If the measured temperature exceeds an overriding limit of 70 C in the NTC 10k versions 120 C in the Advanced 100 100 version the Peltier module is switched off If the measured temperature is out of Tmin Tmax range the WARNING LED is ON and the open collector output OC is connected to ground The PID regulator works normally unless the overriding limit mentioned before is exceeded In the Basic ve...

Page 21: ...troller has no reverse polarity protection Reverse polarity at power supply will permanently damage the temperature controller Related products TEC 8A 24V PID HC RS232 Programmable Temperature Controller 100 100 C TEC 8A 24V PID HC RS232 Programmable Temperature Controller TEC 8A 24V PID HC Temperature Controller ...