4.5.1. Operating modes indication

4.5.1.1. Controller status

Mode indication is provided in controller. For this purpose one dual-color LED is located on the board.

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Green Power indicator shows presence of 3.3 V power supply of controller.

Red Status indicator represents controller operating mode. Simultaneous glowing of both lights looks like yellow glow.

Power/Status indicator operation modes
Flicker frequency Hz Description
LEDs don’t glow the controller is shut down, there is no power supply
Green Power LED is glow power is supplied to the controller
Green Status LED is glow the firmware is not loaded
Yellow Status LED is glow the controller is in an Alarm state
Yellow Status LED is flashes, 0,25 Hz the controller is operating, but there is no connection to the PC via USB
Yellow Status LED is flashes, 1 Hz the controller is operating, waiting for the movement command
Yellow Status LED is flashes, 4 Hz the controller is operating, the movement command is executed
Yellow Status LED is flashes, 8 Hz the controller is in re-flashing mode
Yellow Status LED is flashes, 10 Hz the controller is in USB bus reconnecting mode

4.5.1.2. Indication of limit switches

Multifunctional 20 pin BPC connector is provided with limit switches activity indication. High logic level appears on the corresponding output in the moment of limit switch activity. Active state is determined from limits switches settings (see Motion range and limit switches)

4.5.1.3. Connection diagram

Note

In case of additional LEDs they should be designed for 4 mA operational current. There is no need in additional current limiting resistors. Operational current for typical LEDs is about 2 mA. It is not recommended to use blue and violet LEDs because of their high cut off voltage and as a consequence low brightness.

4.5.1.3.1. Controller board

Indicators Power and Status are duplicated by outputs on the multi functional 20 pin BPC connector with the next scheme of LEDs connection:

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Connection of Power and Status indicators to the controller board

Limit switches are located on the same connector. The connection diagram is shown below. To indicate the limit switches it is convenient to use the LEDs designed for the necessary current.

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Connection of the limit indicators to the controller board

4.5.1.3.2. One-axis and two-axis systems

LEDs on the front panel of controllers in the box (one-axis and two-axis systems) are indicators for power, status and limit switches, therefore a connection diagram is not required.