Construction
Flange and housing of aluminium - shaft of stainless steel -
12 mm ball-bearings with Nilos ring seal or radial packing ring
seal - code disk of glass or of deformation resistant plastic -
GaAlAs diodes - photo-transistor array with comparator and
trigger circuits for long-term stabilization of the sensor systems
gate array - SMD technology.
General features and modes of connection
The CRD encoders are designed for connecting directly to
PROFIBUS-DP buses as slave stations. The interface is
realized with the SPC3 Siemens PROFIBUS controller. The
encoders can be operated with transmission speeds of up to
12 MBaud. The protocol is executed in accordance with
DP-slave class 2 functionality as laid down in Profibus-
Profile for Encoders, No. 3.062 and is described in detail in the
user manual TZY 10617.
Two different modes of electrical connection are provided as
standard variants (Line driver in acc. with RS 485):
Variant L with RS 25 round connector:
The encoder is connected to the bus with a cable (connector
arrangement in accordance with profile description for
encoders).
The default address is changed via the service for
changing the station address of a DP slave, namely
DDLM_Set_Slave_Add. The bus-termination resistors
have to be installed externally.
Variant Z with connecting cap
(T-coupler functionality with integrated addressing)
This variant is designed for the following connection cables
and provides the following functions:
1 cable for the supply voltage
(+ VS = 24 VDC, - VS = 0 VDC), PG 7 cable gland
1 cable for Bus In ( A, B ), PG 9 cable gland
1 cable for Bus Out (A', B'), PG 9 cable gland
The station address and bus-termination resistors are set
with DIP switches in the connecting cap.
Certificate Certificate
Z00358 Z00359