Indicators of the Segments

Overview

The Lexium™ MC12 long stator motor segments are equipped with four LED indicators on the top:

State: Segment state

S3 P1: Port status Sercos bus

S3: Network status Sercos bus

S3 P2: Port status Sercos bus

State LED Indicator

The State LED indicates the internal state of the segment.

LED indicator color / status

Flashing pattern (3 seconds)

Description

Instructions / information for the user

Off

–

Device is not energized or is otherwise inoperable.

  • Verify the power supply.

  • Replace device.

Steady orange

Segment boot phase

Boot and initialization phase of the segment

Flashing green (4 Hz, 125 ms)

Segment update state

Firmware update file transfer or internal firmware update process.

Flashing slowly orange (1 Hz, 500 ms)

SFO not supplied with 24 Vdc, power stage not prepared.

–

Flashing slowly green (1 Hz, 500 ms)

SFO supplied with 24 Vdc, power stage not prepared.

–

Orange for 875 ms, off for 125 ms

SFO not supplied with 24 Vdc, power stage prepared.

–

Green for 875 ms, off for 125 ms

SFO supplied with 24 Vdc, power stage prepared.

–

Steady green

Power stage active

–

Flashing red (4 Hz, 125 ms)

A general error has been detected.

  • The Devices tree in EcoStruxure Machine Expert displays the error detected.

  • Acknowledge the detected error in the EcoStruxure Machine Expert Logic Builder menu Online > Reset diagnostic messages of controller.

  • Otherwise restart device.

Steady red

A non-recoverable error has been detected requiring user intervention:

  • Watchdog

  • Firmware

  • Checksum

  • Internal error detected

  • Cycle power (power reset)

  • If this condition persists, contact your local Schneider Electric service representative.

S3 P1 and S3 P2 LED Indicators

The S3 P1 and S3 P2 LEDs indicate the status of both Sercos ports.

LED indicator color / status

Flashing pattern (3 seconds)

Description

Instructions / information for the user

Off

–

Possible causes:

  • No cable connected

  • The device is not energized

  • Connect the cable.

  • Verify the power supply.

Steady orange

Cable connected, no Sercos communication

–

Steady green

Cable connected, active Sercos communication

–

S3 LED Indicator

The S3 LED indicates the network status of the Sercos bus.

LED indicator color / status

Flashing pattern (3 seconds)

Description

Instructions / information for the user

Off

–

Possible causes:

  • The device is not energized or is otherwise inoperable, or

  • there is no communication due to an interrupted or separated connection.

  • Verify the power supply.

  • Sercos boot-up

Steady green

Active Sercos connection without an error detected in the CP4.

–

Flashing green (2 Hz, 250 ms)

The device is in loopback mode.

Loopback describes the situation in which the Sercos telegrams have to be sent back on the same port on which they were received.

Possible cause: Sercos loop break

Workaround:

  • Close ring.

Reset condition:

  • Acknowledge the detected error in the EcoStruxure Machine Expert Logic Builder menu Online > Reset diagnostic messages of controller.

  • Switch from CP0 to CP1 alternatively.

NOTE: If during phase CP1 a line topology or ring break was detected (device in loopback mode), the LED indicator condition does not change.

Steady red

Sercos diagnostic class 1 (C1D) error has been detected on port 1 and/or port 2.

Reset condition:

  • Acknowledge the detected error in the EcoStruxure Machine Expert Logic Builder menu Online > Reset diagnostic messages of controller.

Flashing red / green (2 Hz, 250 ms)

Communication error has been detected.

Possible causes:

  • Improper functioning of the telegram

  • CRC error detected

Reset condition:

  • The configuration shows which error has been detected.

  • Acknowledge the detected error in the EcoStruxure Machine Expert Logic Builder menu Online > Reset diagnostic messages of controller.

Orange

The device is in a communications phase CP0 up to and including CP3 or HP0 up to and including HP2. Sercos telegrams are received.

See table below for the individual CP indications.

Flashing orange (2 Hz, 250 ms)

Device identification

–

NOTE: The communication phase information is available as follows while in orange state:

LED indicator color / status

Flashing pattern (3 seconds)

Description

Instructions / information for the user

Steady orange

Communication phase is CP0

–

One brief green flash followed by steady orange

Communication phase is CP1

–

Two brief green flashes followed by steady orange

Communication phase is CP2

–

Three brief green flashes followed by steady orange

Communication phase is CP3

–