Ydo0 - Sartorius YDO02C-232 Instrucciones De Instalación

Terminating resistors
for Profibus
GND
390 O
A
220 O
B
390 O
VP
14
YDO0...-DP (Option B1)
Equipment Supplied
– Interface module
– Installation instructions (this manual)
– "Field bus" software interface description
– GSD file: see Sartorius website "Sartorius Mechatronics Software download:
Select product: Fieldbus files"
Assembly
Connect interface module YDO0...-DP (Profibus interface) directly to the digital board
of the scale, without configuration. For more information, please refer to the section
entitled "Installing 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 by
– Termination within the connecting plugs (at baud rates > 1.5 Mbit/s with additional
inductances)
or by
– Internal bus terminations.
Use switches 1 through 4 to set the particular resistor:
Operating status
390 ohms bias resistor against GND
220 ohms terminating resistor
220 ohms terminating resistor
390 ohms bias resistor against 5 V
Note: SW 1–2 and SW 1–3 – or all switches – must be activated simultaneously.
Use the 5V 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