Burkert Type 8635 - Manual (Page 77)

8635 - 75
O
PERATING AND
C
ONTROLLER
F
UNCTIONS
SIG-ERR
Configuration of error recognition signal level (S/HART)
NOTE Error recognition
Error recognition can be selected only with 4 ... 20 mA signal of the process value.
Error is recognized with an input signal
≤ 3.5 mA (±0.5 % of end value, hysteresis 0.5 %
of end value).
With signal error recognition activated: PV FAULT signal error of process controller value.
With the process controller deactivated,
NOT.AVAIL appears in the selection menu.
Safety position SPOS ON
If SPOS ON is set, the following configurations may occur:
Activated menu item SAFEPOS
On error recognition the actuator moves to the position set under SAFEPOS.
Deactivated menu item SAFEPOS
On error recognition the actuator moves to the end position which it would assume in the zero-voltage
state.
Activate signal error
recognition
Activate move to safety
position
SIG-ERR
ERR END
Configure error
recognition of
process value
signal
ERR P.INP P.INP ON SPOS ON
P.INP OFF SPOS OFF
Move to safety
position if signal
in error