Installation manual

Danaher Motion Kollmorgen 08/04 SERCOS Interface Setup
SERVOSTAR S Installation M-SS-001-01 Rev. T 55
6 SERCOS INTERFACE SETUP
The SERVOSTAR S-Series drives come with SERCOS interface
communication capability. It must be ordered from the factory with
this option. The Encoder Equivalent Output D9 connector (C4) is
replaced with two fiber-optic ports, transmitter (Tx) and receiver
(Rx).
This section provides the SERCOS interface-specific information
needed to complete the installation and setup of a SERCOS
interface SERVO
STAR drive to the fiber-optic ring.
6.1 DIP Switch Configuration
DIP switch configuration is similar to that of the standard
SERVO
STAR drive. Through these switches, the drive’s address
and communication power levels are set.
6.1.1 SETTING DRIVE ADDRESS
Up to 31 SERVOSTAR drives can be configured on the SERCOS
interface ring. The first five switches of the DIP set the drive
address. When the address is zero (00000), the drive operates as a
SERCOS interface repeater and as a single axis unit with serial
communication. You can monitor and configure the drive through
the serial port. Any other address setting, 1-31 (00001 – 11111),
establishes the drive as an active SERCOS interface ring
participant with communications through the Tx/Rx ports. When the
drive has a non-zero address, you can communicate through the
serial port only for monitoring purposes.
6.1.2 SETTING TRANSMISSION POWER
LEVELS
The SERCOS interface transmitter power level (DIP switch 9)
should be set according to the expected signal attenuation between
a SERCOS interface transmitter and the next receiver. Signal
attenuation is based upon cable length, cable type, and
intermediate connection losses (e.g. bulk head connectors). The
following table may be used to calculate the maximum allowable
and minimum required signal attenuation for a given power level
and cable attenuation:
Power Level Attenuation Specifications
Attenuation Low Power High Power
Maximum 9.5 dBm. + 2 m. *Ac 12.5 dBm. + 2 m. *Ac
Minimum - 1.5 dBm. + 2 m. *Ac
Note: Ac = Fiber optic cable attenuation in dBm./m.