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Expansion card SERCOS II

Usable with S300, S600, S700

General

This expansion card can be used with S300, S600 and S700 (Slot 1).
Connection: fiber optic cable  -  only use SERCOS BUS components to the SERCOS BUS Standard IEC 61491.
The matching manual can be found via the File Selector.

The command OPTION delivers a code for the built-in expansion card.

Expansion card

Front cover

LEDs 

LED

Remarks

RT

Indicates whether SERCOS BUS telegrams are being correctly received. In the final Communication Phase 4 this LED should flicker, since cyclical telegrams are being received.

TT

Indicates that SERCOS BUS telegrams are being transmitted. In the final Communication Phase 4 this LED should flicker, since cyclical telegrams are being transmitted. Check the station addresses for the controls and the servo amplifier if:

  • the LED never lights up in SERCOS BUS Phase 1 or
  • the axis cannot be operated, although the RT LED is lighting up cyclically.
ERR

Indicates that SERCOS BUS communication is faulty or suffering from interference.

  • If this LED is very bright, then communication is suffering strong interference, or is non-existent. Check the SERCOS BUS transmission speed for the controls and the servo amplifier (BAUD RATE) and the fiber-optic connection.
  • If this LED fades or flickers, this indicates a low level of interference for SERCOS BUS .communication, or the optical transmitting power is not correctly matched to the length of cable. Check the transmitting power of the (physically) previous SERCOS BUS station. The transmitting power of the servo amplifier can be adjusted in the setup software  on the SERCOS BUS screen page, by altering the length parameter for the cable length.
 

Setup

Station address

  • The drive address can be set to a value between 0 and 63.  With address 0, the drive is assigned as an amplifier in the sercos® ring
  • The sercos® address can be modified using the keys on the front of the amplifier
  • The address can also be modified in the setup software, "CAN/Fieldbus" screen
  • Alternatively, enter the command ADDR # in the "Terminal" screen, where # is the new address of the drive.

Baud rate

  • The baud rate can be set to 2, 4, 8 or 16 MBaud. Depending on the cable length, the optical power of the interface must be set as well
  • The SBAUD # parameter can be used to set the baud rate, where # is the baud rate
  • The parameter can be modified in the setup software, "SERCOS" screen
  • Alternatively, the command SBAUD # can be entered in the "Terminal" screen

Optical power

  • The SLEN # parameter can be used to specify the optical range for a standard 1 mm² glass fibre cable, where # is the length of the cable in metres.
  • The parameter can be modified in the setup software, "SERCOS" screen
  • Alternatively, the command SLEN # can be entered in the "Terminal" screen

Documentation

Data sheets for the expansion card can be found via File Selector, set document type filter to "Add On Document".