Can Line Termination?

FAQ
It is terminated at both ends with 120-Ω resistors, which match the characteristic impedance of the line to prevent signal reflections. According to ISO 11898, placing RL on a node should be avoided since the bus lines lose termination if the node is disconnected from the bus.

Also know, what is a CAN system?

A Controller Area Network (CAN bus) is a robust vehicle bus standard designed to allow microcontrollers and devices to communicate with each other in applications without a host computer.

What is the speed of CAN bus?

High Speed CAN offers baud rates from 40 Kbit/s to 1 Mbit/sec, depending on cable length. This is the most popular standard for the physical layer, since it allows for simple cable connection between devices. This is the physical standard used in the DeviceNet and CANopen specifications.

What is the voltage on a CAN bus?

1.2 CAN_H/CAN_L Voltage. Each node contains a CAN transceiver that outputs differential signals. When the network communication is idle the CAN_H and CAN_L voltages are approximately 2.5 volts.

How are the resistors connected in a blower motor circuit?

The fan speed can be changed either by switching the blower resistor resistance mechanically, using a rotating lever, or electronically by the air conditioning system. The change in resistance then limits the current through the motor, which dictates the speed at which the blower fan works.

What is a blower motor used for?

The blower motor is the component responsible for pushing air through the vents of your vehicle’s heating and air conditioning systems. Without it, the AC system will not be able to circulate any heated or cooled air.

What is the purpose of a blower motor resistor?

The blower motor resistor is an electrical component that is a part of the vehicle’s heating and air conditioning system. It is responsible for controlling the blower motor’s fan speed. A failed blower motor resistor can cause issues with the operation of the entire heating and air conditioning system.

How much does it cost to replace a blower motor resistor?

Know what price you should pay to get your vehicle fixed. The average cost for a blower motor resistor replacement is between $83 and $150. Labor costs are estimated between $35 and $78 while parts are priced between $48 and $72. Estimate does not include taxes and fees.

How do you test a resistor?

Steps

  • Remove power from the circuit containing the resistor.
  • Isolate the resistor from the circuit.
  • Inspect the resistor.
  • Read the resistor value visually.
  • Prepare a digital multimeter (DMM) to measure the resistor.
  • Measure the resistance.
  • Determine the actual resistance of the resistor.
  • Why do resistors fail?

    A fixed composition resistor normally fails in an open configuration when overheated or overly stressed due to shock or vibration. Excessive humidity may cause an increase in resistance. A variable composition resistor may wear after extensive use, and worn away particles may cause high resistance short circuits.

    Can I test a resistor in circuit?

    If you suspect a bad resistor is at the root of your electrical problems, you can conduct a simple test with a multimeter without ever removing the resistor from the circuit. Turn the multimeter dial to the resistance setting. Power off the circuit containing the resistor you wish to measure.

    How do you check for resistance?

    Turn power to circuit OFF. If a circuit includes a capacitor, discharge the capacitor before taking any resistance reading. 2. Turn dial to Ω (resistance, or ohms), which often shares a spot on the dial with one or more other test/measurement modes (continuity, capacitance or diode; see illustration below).

    How do you determine the value of a resistor?

    Steps

  • Position the resistor with the gold or silver color band to the right..
  • Read the color sequence that must be decoded to determine resistance.
  • Determine the coded number for the resistive value.
  • Determine the tolerance of the resistor.
  • Determine the decoded number for the resistive value.
  • Which side of the resistor do I read from?

    Orient the resistor so you can read the stripes properly. You should read the stripes from left to right. The first stripe is the one that’s closest to one end of the resistor. If this stripe is on the right side of the resistor, turn the resistor around so the first stripe is on the left.

    What is the color code for a 220 ohm resistor?

    220R / 220 ohm Resistor Colour CodeValue220 ΩType4 Band Colour Code SystemColour CodeRed, Red, Brown, GoldMultiplierBrown, 10ToleranceGold Band ±5%

    What is the color code for a 150 ohm resistor?

    150R / 150 ohm Resistor Colour CodeValue150 ΩType4 Band Colour Code SystemColour CodeBrown, Green, Brown, GoldMultiplierBrown, 10ToleranceGold Band ±5%

    What is the color code for a 100 ohm resistor?

    100R / 100 ohm Resistor Colour CodeValue100 ΩType4 Band Colour Code SystemColour CodeBrown, Black, Brown, GoldMultiplierBrown, 10ToleranceGold Band ±5%

    What is the color code for a 10 ohm resistor?

    10R / 10 ohm Resistor Colour CodeValue10 ΩType4 Band Colour CodeColour CodeBrown, Black, Black, GoldMultiplierBlack, 1ToleranceGold Band ±5%

    What is the color code for a 47 ohm resistor?

    47R / 47 ohm Resistor Colour CodeValue47 ΩType4 Band Colour Code SystemColour CodeYellow, Violet, Black, GoldMultiplierBlack, 1ToleranceGold Band ±5%

    What is the value of the resistor?

    A resistor is a device that opposes the flow of electrical current. The bigger the value of a resistor the more it opposes the current flow. The value of a resistor is given in ohms and is often referred to as its ‘resistance’.

    What is the color code for a 470 ohm resistor?

    470R / 470 ohm Resistor Colour CodeValue470 ΩType4 Band Colour Code SystemColour CodeYellow, Violet, Brown, GoldMultiplierBrown, 10ToleranceGold Band ±5%

    What color is a 47k resistor?

    47k / 47k ohm Resistor Colour CodeValue47 kΩ / 47000 ΩType4 Band Colour Code SystemColour CodeYellow, Violet, Orange, GoldMultiplierOrange, 1000ToleranceGold Band ±5%

    What Colour is a 22k resistor?

    22k / 22k ohm Resistor Colour CodeValue22 kΩ / 22000 ΩType4 Band Colour Code SystemColour CodeRed, Red, Orange, GoldMultiplierOrange, 1000ToleranceGold Band ±5%

    What is the speed of CAN bus?

    High Speed CAN offers baud rates from 40 Kbit/s to 1 Mbit/sec, depending on cable length. This is the most popular standard for the physical layer, since it allows for simple cable connection between devices. This is the physical standard used in the DeviceNet and CANopen specifications.

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