Burkert Type 8712 - Manual (Page 34)

34
Operationandfunction
Type 8006, 8702
function Description
Close valve
completely active The close valve completely function is
activated.
Open valve
completely active The open valve completely function is
activated.
Defective power
requirement The power requirement of the device is
monitored. If this value is outside defined
limits, this function is actuated. An excessively
high or low power requirement may indicate a
defective device.
Defective internal
power supply The operating voltage of the device is
monitored. If the defined limits exceed the
maximum or drop below the minimum, this
function is actuated.
Defective power
supply to the
sensor The power supply voltage to the sensor is
monitored. If the defined limits exceed the
maximum or drop below the minimum, this
function is actuated.
Defective data
storage If data storage is in the non-volatile memory of
the device, a fault has occurred.
Sensor fault The device is able to detect a defective
sensor via a self-test.
If this is the case, this function is activated.
MFI fault The field bus module (MFI) is defective
or incorrectly equipped. Field bus
communication is not possible.
x Limit The measured value has exceeded or dropped
below a limit value which can be configured.
function Description
w Limit The set-point value has exceeded or dropped
below a limit value which can be configured.
y2 Limit The actuating variable has exceeded or
dropped below a limit value which can be
configured.
Totalizer Limit The totalizer has exceeded or dropped below
a limit value which can be configured.
Tab. 4 : Relay output signals possible functions
English