Danfoss 101N0290 High Speed Electronic Unit
Specifications
- Product Name: High Speed Electronic Unit for BD Compressors
- Model Number: 101N0290
- Power Supply: 12- 24V DC
Product Usage Instructions
Installation
Connect the terminal plug from the electronic unit to the compressor terminal. Mount the electronic unit on the compressor by snapping the cover over the screw head (1).
Thermostat
The thermostat (7) is connected between the terminals C and T. With the thermostat directly connected to terminal C, the electronic unit will adjust its speed to the actual cooling demand. Different fixed compressor speeds in the range between 2,500 and 4,400 rpm can be achieved by installing a resistor (8) to adjust the control circuit’s current. Refer to Fig. 5 for resistor values for various motor speeds.
Fan (optional)
A fan (5) can be connected between the terminals + and F. Connect the plus to + and the minus to F. Use a 12V fan for both 12V and 24V power supply systems since the output voltage is
regulated to 12V. The fan output can provide a continuous current of 0.5Aavg with allowance for higher current draw during start.
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 volt-age 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 compres-sor 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 during installation, a fuse (3) must be mounted in the + cable as close to the battery as possible. 30A fuse for 12V and 15A fuse for 24V circuits are recommended.
If a main switch (4) is used, it should be rated for a minimum current of min. 30A. 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.
Wire dimensions
| Size | Max length* 12V DC
operation |
Max length* 24V DC
operation |
||||
| AWG
Gauge |
Cross
section mm2 |
|||||
| Ft. | m | ft. | m | |||
|
10 |
6 |
8 |
2.5 |
16 |
5 |
|
Fig. 2 Length between the battery and the electronic unit
Battery protection (Fig. 1)
The compressor stops and starts again according to the designated voltage limits measured on the + and – terminals of the electronic unit.
The standard settings for 12V and 24V power supply systems appear in Fig. 3. Other settings (Fig. 4) are optional if a connection that includes a resistor (9) is established between terminals C and P. In AEO (Adaptive Energy Optimizing) speed mode, the BD compressor will always adapt its speed to the actual cooling demand within a random operation voltage of 9.6 to 31.5V.
Standard battery protection settings
| 12V cut-out V | 12V cut-in V | 24V cut-out V | 24V cut-in V |
| 10.4 | 11.7 | 22.8 | 24.2 |
Fig. 3
Optional battery protection settings, Fig. 4
| Resistor
(9) kO |
12V cut-out V | 12V cut-in V | 12V max. Voltage | 24V cut-out V | 24V cut-in V | 24V max. Voltage |
| 0 | 9.6 | 10.9 | 17.0 | 21.3 | 22.7 | 31.5 |
| 1.6 | 9.7 | 11.0 | 17.0 | 21.5 | 22.9 | 31.5 |
| 2.4 | 9.9 | 11.1 | 17.0 | 21.8 | 23.2 | 31.5 |
| 3.6 | 10.0 | 11.3 | 17.0 | 22.0 | 23.4 | 31.5 |
| 4.7 | 10.1 | 11.4 | 17.0 | 22.3 | 23.7 | 31.5 |
| 6.2 | 10.2 | 11.5 | 17.0 | 22.5 | 23.9 | 31.5 |
| 8.2 | 10.4 | 11.7 | 17.0 | 22.8 | 24.2 | 31.5 |
| 11 | 10.5 | 11.8 | 17.0 | 23.0 | 24.5 | 31.5 |
| 14 | 10.6 | 11.9 | 17.0 | 23.3 | 24.7 | 31.5 |
| 18 | 10.8 | 12.0 | 17.0 | 23.6 | 25.0 | 31.5 |
| 24 | 10.9 | 12.2 | 17.0 | 23.8 | 25.2 | 31.5 |
| 33 | 11.0 | 12.3 | 17.0 | 24.1 | 25.5 | 31.5 |
| 47 | 11.1 | 12.4 | 17.0 | 24.3 | 25.7 | 31.5 |
| 82 | 11.3 | 12.5 | 17.0 | 24.6 | 26.0 | 31.5 |
| 220 | 9.6 | 10.9 | 31.5 | |||
Thermostat (Fig. 1)
The thermostat (7) is connected between the terminals C and T. With the thermostat directly connected to terminal C, the electronic unit will adjust its speed to the actual cooling demand. Other fi xed compressor speeds in the range between 2,500 and 4,400 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 in Fig. 5.
Compressor speed
| Electronic unit | Resistor
(8) O (calculated) |
Motor speed rpm | Contr. Circ. current mA |
| 0
203 451 867 1700 |
AEO 2,500
3,100 3,800 4,400 |
6
5 4 3 2 |
Fig. 5
Fan (optional, Fig. 1)
A fan (5) can be connected between the terminals + and F. Connect the plus to + and the minus to F. Since the output voltage between the terminals + 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.+ and F. Connect the plus to + and the minus to F. Since the output voltage between the terminals + 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.
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 several times. The number of fl ashes depends on what kind of op-erational 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 lashes |
Error type |
| 5 | Thermal cut-out of electronic unit (If the refrigeration system has been too heavily loaded, or if the ambient temperature is high, the electronic unit will run too hot). |
| 4 | Minimum motor speed error
(If the refrigeration system is too heavily loaded, the motor cannot maintain a minimum speed of 2,450 rpm.) |
| 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 1A peak). |
| 1 | Battery protection cut-out
(The voltage is outside the cut-out setting.) |
VDE/UL Approvals for BD Compressors
Approved Compressor – Electronic Unit Combinations
| Compressors | Electronic nits | ||||||
| tandard | E I | High start | high speed | AEO | AEO E I | ||
| 101N0210 | 101N0220 | 101N0230 | 101N0290 | 101N0300 | 101N0320 | ||
| BD35F mm | 101Z0200 | L | L | L | |||
| BD35F inch | 101Z0204 | L | L | L | |||
| BD35K (R600a) | 101Z0211 | ||||||
| BD50F mm | 101Z1220 | L | L | L | L | ||
| BD50F inch | 101Z0203 | L | L | L | L | ||
| BDB0F mm | 101Z0280 | ||||||
| BD250GH | 101Z0400 | ||||||
| BD250GH Twin | 101Z0500 | ||||||
| BD100CN (R290) | 101Z0401 | ||||||
| Compressors | Electronic nits | ||||||
| olar | A /O converter | Automotive | Automotive | Telecommunication | Extended E I | ||
| 101N0400 | 101N0500 | 101N0600 | 101N0630 | 101N0730 | 101N0900 | ||
| BD35F mm | 101Z0200 | L | VDE/ L | ||||
| BD35F inch | 101Z0204 | L | VDE/ L | ||||
| BD35K (R600a) | 101Z0211 | ||||||
| BD50F mm | 101Z1220 | VDE/ L | |||||
| BD50F inch | 101Z0203 | VDE/ L | |||||
| BD250GH (4BV) | 101Z0402 | L | |||||
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifi cations already agreed. All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
Designed and manufactured by Secop for DANFOSS – DEHC.EI.100.W3.02 / 520N0783
FAQs
Q: What are the error types indicated by the number of flashes?
- flashes: Thermal cut-out of the electronic unit – caused by heavy load or high ambient temperature.
- flashes: Minimum motor speed error – occurs when the motor cannot maintain the minimum speed.
- flashes: Motor start error – caused by a blocked rotor or high differential pressure in the refrigeration system.
- flashes: Fan over-current cut-out – triggered when the fan draws more than 1Apeak.
- flash: Battery protection cut-out – due to voltage outside the set range.
Q: Where can I find approved Compressor-Electronic Unit combinations?
You can find a list of approved Compressor-Electronic Unit combinations on compressors.danfoss.com under Approved Compressor-Electronic Unit Combinations.
Documents / Resources
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Danfoss 101N0290 High Speed Electronic Unit [pdf] Instructions 101N0290 High Speed Electronic Unit, 101N0290, High Speed Electronic Unit, Speed Electronic Unit, Electronic Unit |