Diagnosis; Outputs - Festo VIFB-02 Series Manual

VIFB8 – 02

Diagnosis

Diagnostic Meaning
information
V (V ) Monitors the operating voltage
valve val
of valves and additional outputs
V (V ) Monitors the operating voltage
output out
of the valves and
additional outputs
(no voltage, e.g.
EMERGENCY OFF).
V (V ) Monitors the operating voltage
input inp
of the inputs/sensors with
valve sensor terminals
SA0 Monitors additional output
O0.00 of valve sensor
terminal
SA1 Monitors additional output
O0.01 of valve sensor
terminal
Fig. 6/5: Error status of valve terminal/valve sensor terminal
9706
6. Diagnosis/error treatment
The following error states are recognized on the
valve terminal/valve sensor terminal and com-
municated to the programmable controller.
In accordance with the RIO protocol, this diag-
nostic information is transmitted as common
error to the programmable controller where it can
be analysed with the status bits.
Cause
Operating voltage at pin 2 of
operating voltage
connection< 21.6V
Operating voltage at pin 2 of
operating voltage
connection < 10V
Operating voltage of
sensors < 10V at pin 1
(e.g. internal fuse triggered)
Short circuit or overload
Short circuit or overload
6-7