Alarm outputs, Wiring, Configuration | Carrier 500 T/R manual

- Display background lighting (preferable for the R-Version)

Usually the display background light switches on after pressing any key and switching off automatically after 30 seconds. When a permanent background light is required while driving connect pin 3 to a vehicle ignition +signal.

WARNING : NEVER CONNECT DIRECT TO THE BATTERY.

- Alarm outputs

Pin 4 and 5 are digital alarm outputs, pin 4 for a temperature alarm and pin 5 for a status alarm. Both outputs switch to ground in case of an alarm situation and are limited to 1A output current.

Connector CON 2 (serial port)

Connector CON 2 is a serial communication port. This port can be used for a permanent connection with the microprocessor of the Carrier Unit.

Connector CON 3 (digital inputs)

DataCold 500 T/R recorders offer the possibility to connect up to 4 digital inputs. Pin 1-8 are accordingly marked with D1–D4 (D1 = Pin 1+2, …). At every opening or closing of the input circuit a status change will be recorded into memory, but only if the input has been activated and configured correctly in the parameter settings. All four inputs as standard are de-activated. The following functional names are pre-programmed: D1 = Refrigeration, D2 = Back door, D3 = Defrost, D4 = Side door. There is also a free text choice to enter a custom name on each digital input. For these digital inputs the polarity must be wired correctly. Pin 2, 4, 6 and 8 are internally connected to ground. Pin 1, 3, 5 and 7 are signal inputs.

Connector CON 4 (temperature inputs)

DataCold 500 T/R recorders offer the possibility to connect up to 4 temperature sensors. Pin 1-8 are accordingly marked with T1–T4 (T1 = Pin 1+2, …). Pin 2, 4, 6 and 8 are signal inputs and pin 1, 3, 5 and 7 are internally connected to ground. The polarity of the sensor cable is not relevant. In the factory setting input 1 and 2 are activated and pre-programmed as follows: T1=Return air, T2=Rear.

2.4Wiring

Refer to the Enclosure E “Wiring diagrams“ to connect:

•Power supply

•Alarm outputs ( if installed )

•Ignition key ( if permanent backlight needed )

•Analog sensors

•Digital sensors

•RS-232 of the refrigeration unit micro ( if installed )

2.5Configuration

After finishing the physical installation of the temperature recorder it should to be configured. All parameters are stored in a parameter file. After every standard installation a number of parameters need to be either checked or changed. Time and date are directly accessible in the user menu, all other settings are accessible via the PIN code protected parameter menu. ( Factory settings, see ENCLOSURE C)

•Time and date, Menus 3.1 and 3.3

•Temperature inputs, Menu 5, On input T1 ‘Return air’ and on input T2 ‘Rear’ is pre-programmed. Both inputs are also activated for both recording and printing.

•Sample rate, Menu 10.2 standard on 10 minutes

•Vehicle ID, Menu 10.3

•Header text, Menu 10.4 normally used for company name

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