Danfoss 101N0630 Electronic Control Unit for BD35F Compressors Automotive and Boat Use

Danfoss 101N0630 Electronic Control Unit for BD35F Compressors Automotive Use

Item location: China. Pick-up is welcome.

The electronic unit is a dual voltage device. This means that the same unit can be used in both 12V and 24V power supply systems. Maximum voltage is 17V for a 12V system and 31.5V for a 24V power supply system. Max. ambient temperature is 55°C. The electronic unit has a built-in thermal protection which is actuated and stops compressor operation if the electronic unit temperature gets too high. Installation (Fig. 1) Connect the terminal plug from the electronic unit to the compressor terminal. Mount the elec tro nic unit on the compressor by snapping the cover over the screw head (1). Power supply (Fig. 1) The electronic unit must always be con nec ted directly to the battery poles (2). Con nect the plus to + and the minus to -, otherwise the elec tronic unit will not work. The electronic unit is pro tec ted against reverse battery connection. For protection of the installation, a fuse (3) must be mounted in the + cable as close to the battery as possible. 15A fuse for 12V and 7.5A fuse for 24V circuits are recommended. If a main switch (4) is used, it should be rated to a current of min. 20A. The wire dimensions in Fig. 2 must be observed. Avoid extra junctions in the power supply system to prevent voltage drop from affecting the battery protection setting. Battery protection (Fig. 1) The compressor stops and restarts again according to the decided voltage limits measured on the + and - terminals of the electronic unit.

The standard settings for 12V and 24V power supply systems appear from Fig. 3. Other settings (Fig. 4) are optional if a connection which includes a resistor (9) is established between terminals C and P. Thermostat (Fig. 1) The thermostat (7) is connected between the terminals C and T. Without any resistor in the control circuit, the compressor will run with a fi xed speed of 2,000 rpm when the thermostat is switched on. Other fi xed compressor speeds in the range between 2,000 and 3,500 rpm can be obtained when a resistor (8) is installed to adjust the current (mA) of the control circuit. Resistor values for various motor speeds appear from Fig. 5. Fan, optional (Fig. 1) A fan (5) can be connected between the terminals C and F. Since the output voltage between the terminals C and F is always regulated to 12V, a 12V fan must be used for both 12V and 24V power supply systems. The fan output can supply a continous current of 0.5Aavg . A higher current draw is allowed for 2 seconds during start. Lamp, optional (Fig.1) The 10W power should be split on fan and lamp (10) output (5W each) or 10W only on fan or lamp output.

Fan Lamp 5 watt 5 watt 10 watt 0 watt 0 watt 10 watt both outputs: 12V DC, 0-5W

LED (optional, Fig. 1) A 10mA light emitting diode (LED) (6) can be connected between the terminals + and D. In case the electronic unit records an operational error, the diode will fl ash a number of times. The number of fl ashes depends on what kind of operational error was recorded. Each fl ash will last ¼ second. After the actual number of fl ashes there will be a delay with no fl ashes, so that the sequence for each error recording is repeated every 4 seconds. Number of fl ashes Error type Thermal cut-out of electronic unit (If the refrigeration system has been too hea vi ly loaded, or if the ambient temperature is high, the electronic unit will run too hot). 5 Minimum motor speed error (If the refrigeration system is too heavily loaded, the motor cannot maintain minimum speed 1,850 rpm). 4 3 Motor start error (The rotor is blocked or the differential pressure in the refrigeration system is too high (>5 bar)). 2 Fan over-current cut-out (The fan loads the electronic unit with more than 1Apeak). 1 Battery protection cut-out (The voltage is outside the cut-out setting). Constant LED light Safe mode (The unit is out of specifi cation, but will still be running as long as possible).