Selecting The Valve Supply - Aventics PROFIBUS DP Instrucciones De Servicio

S3
ON
↑
↓
OFF
Table 8: S3 DIP switch for selecting diagnostic messages sent to the master
Bit Diagnosis
S3.1 OFF: Valve control overload message off
ON: Valve control overload message on
S3.2 OFF: 12.5 V < U
voltage too low message off
ON: 12.5 V < U
voltage too low message on
S3.3 OFF: 12.5 V < U
voltage too low message off
ON: 12.5 V < U
voltage too low message on
S3.4 OFF: U < 12.5 V message off
Q1
ON: U < 12.5 V message on
Q1
S3.5 OFF: U < 12.5 V message off
Q2
ON: U < 12.5 V message on
Q2
S3.6 NC
S3.7 OFF: Threshold for U
OFF: Threshold for U
ON: Threshold for U
S3.8 OFF: Threshold for U
ON: Threshold for U
S4
Pos. 2 ↑
Pos. 1 ↓
AVENTICS | PROFIBUS DP | R402003657–BAL–001–AG
O
Set the necessary diagnostic messages using the S3 switch
(see Table 8).
Changes will be activated after a power reset.
< 21.6 V/20.4 V
Q1
< 21.6 V/20.4 V
Q1
< 21.6 V/20.4 V
Q2
< 21.6 V/20.4 V
Q2
is 20.4 V
Q1
is 20,4 V
Q1
is 21.6 V
Q1
is 20.4 V
Q2
is 21.6 V
Q2
7.1.4

Selecting the valve supply

The valve power supply can be selected block-wise with the S4
sliding switch. It is possible to switch between the valve supply
from the PROFIBUS line and the U
external supply.
At delivery, all switches are set to position 1.
Commissioning and operation
NOTE
This diagnostic message is displayed if a
valve reports an overload or short circuit.
The diagnostic message is only displayed as
long as this valve is actuated.
In order to ensure safe valve switching, the
switch voltage must be 20.4 V or 21.6 V! If
the UQ voltage is between 12.5 V and 20.4 V/
21.6 V, the voltage is too low. The low voltage
message appears approx. 10 ms after being
turned on and approx. 20 ms after being
turned off. If the voltage is lower than 12.5 V,
this is reported separately.
The threshold 20.4 V/21.6 V can be adjusted
for different valve series.
and U
Q1 Q2
73
voltages from the