Configuration of K4:
In the above example, there is no offset on the output, K4 is thus set to 0.
(
Input 1 + K1
Division:
* K3 + K4
Input 2 + K2
After calculation, the result of the division is transmitted to the selected out-
put.
The constants K1, K2, K3, and K4 are configured in the same way as
de scribed under multiplication.
(
Input 2 + K2
Division:
* K3 + K4
Input 1 + K1
After calculation, the result of the division is transmitted to the selected out-
put.
The constants K1, K2, K3, and K4 are configured in the same way as
de scribed under multiplication.
Redundancy: (Primary input 1 -> Secondary input 2 * K2 + K4)
The redundancy function transmits the primary signal from input 1 to the
selected output. By sensor error on input 1, the output automatically changes
to the secondary signal from input 2.
If the signals on input 1 and input 2 are identically scaled, K2 = 1 and
K4 = 0.
Sensor error detection can be selected acc. to requirement, but if "off" mode
is selected, the output is undefined in case of sensor error on both inputs.
Maximum safety is obtained by using output 2 for sensor error detection.
This can be done by selecting [Output] as [Fixed] and selecting [Sensor error
action] and [Detect] on output 2 acc. to requirement.
Redundancy: (Primary input 2 -> Secondary input 1 * K1 + K4)
See the above description of "redundancy" for further details.
Green LED function:
The green front LED indicates the following states:
Normal operation, i.e. no errors:
Functional error:
Sensor error on input 1:
Sensor error on input 2:
Sensor error both inputs
44
)
)
the LED flashes quickly.
the LED lights constantly.
the LED flashes once per second.
the LED flashes twice per second.
the LED lights constantly.
CALCULATEUR DE SIGNAUX
PRetrans 5115
SOMMAIRE
Avertissements ................................................................... 46
Application ......................................................................... 51
Applications........................................................................ 52
Caractéristiques électriques............................................... 53
Connexions ........................................................................ 58
Référence de commande................................................... 62
45