Sartorius YDO01SW-232 Instrucciones De Instalación página 10

Terminating resistors
for Profibus
GND
390 O
A
220 O
B
390 O
VP
10
YDO01SW-DP (Option B1)
Equipment supplied
– YDO01SW-DP interface module
– Diskette with GSD file
– Installation instructions (this document)
– Interface description for fieldbus operation
Installation
Connect interface module YDO01SW-DP (Profibus interface) directly to the digital
board of the scales without configuration. For more information, please refer to
"Installing Data Output Ports in the Indicator." Any terminating resistors that may be
necessary for the bus system must be installed outside the indicator. The voltage required
for this is supplied internally by the indicator. A bus connection is required at both ends
of the bus system. This is achieved either through
– Termination within the connecting plugs (at speeds > 1.5 Mbit/s with inductances)
or through
– Internal bus terminations.
Use switches 1 through 4 to set the particular resistor:
Operating state
390-O bias resistor against GND
220-O terminating resistor
220-O terminating resistor
390-O bias resistor against 5V
Note: Switches SW 1–2 and SW 1–3 – or all switches – must be activated simultaneously.
Use the SV supply voltage only for activating external bias resistors in accordance with
the Profibus-DP specification.
Notes:
!
Only use cables and plugs that conform to the Profibus specification.
!
Connect the shielding of the connecting cable to the housing.
Switch
SW 1–1: ON
SW 1–2: ON
SW 1–3: ON
SW 1–4: ON