Samson 3785 series, Монтаж и эксплуатация

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9.3 "CHECK-BACK" messages
Fail-safe position (MODE = OUT OF SERVICE)
The fail-safe position was activated by the device and can be caused by selecting operating
mode "OUT OF SERVICE", by activating the forced venting option or by communication
failure.
The device switches to the "OUT OF SERVICE" mode.
Request for local operation
This message is issued if local operation was required, but not enabled
(LOCAL_OP_ENA = 0) .
Automatic reset when the message is read out.
Local operation
Forced venting active
The forced venting option was activated, i.e. the signal applied to ter81 and –82 is
smaller than 3 V. The control valve moves to fail-safe position regardless of the control loop.
Automatic reset when a 6 V DC to 24 V DC signal is applied to ter81 and –82.
Static data changed
This message is issued after device data have been changed, thus providing a control func-
tion for (unintentional/unauthorized) modifications of the originally adjusted values.
Automatic reset when the message is read out.
Simulation mode, i.e. values are not derived from the process
This message is generated when the device is in simulation mode. In this case, the controlled
variable x is indicated.
Error - see DIAGNOSIS messages
The device has a defect. A message from the DIAGNOSIS area provides exact localization.
EB 8382-1 EN
63
Messages and diagnosis