Samson 3724, Mounting And Operating Instructions

Page: 33 / 40

EB 8395 EN 33
Malfunction
9.1 Error codes
In case of a fault, the fault indication icon is displayed.
The errors listed in the following table are assigned to error classes:
Error class 1: No operation possible
Error class 2: Manual operation only possible
Error class 3: Manual operation and closed-loop control possible
Code Description Class
E0 Zero error
(operational error)
Only with tight-closing function P10 (set point cutoff
decrease set to ON).
The zero point has shifted by more than 5 % compared to
initialization. The error may arise when the valve seat trim
is worn.
3
Recommended action Check valve and positioner attachment.
If OK, perform a zero calibration over Code P16 (see
section 7.10).
Error code can be reset (see section 9).
E1 Displayed and INIT val-
ues are not identical
(operational error)
Adjusted and displayed valves are not identical to the INIT
values as the parameters were changed after initialization.
3
Recommended action Reset parameters or perform initialization.
E2 Positioner has not been
initialized
Malfunction or parameter change requiring the positioner
to be re-initialized.
2
Recommended action Set parameters and initialize the positioner over Code P15 .
E3 K
P
setting
(initialization error)
Positioner hunts.
Volume restriction set incorrectly, too much gain.
2
Recommended action Check the volume restriction setting as described in section
7.3. Limit gain K
P
in Code P8 . Re-initialize the positioner.
E4 Transit time too short
(initialization error)
The transit times of the actuator determined during initializa -
tion are so short (below 0.4 second) that optimal positioner
tuning is not possible.
2
Recommended action Check the volume restriction setting as described in section
7.3. Re-initialize the positioner.