
Ò
Check wiring.
P-FEEDBACK E4 LOSS
Signal loss of process feedback E4 (only if process controller of logic
sub-assembly is available and active).
Ò
Check wiring.
FIBRE OPTIC LOSS
Signal loss of fibre optic cable (only for bus with fibre optic loop topology).
Ò
Check wiring.
ANALOG IN1 BUS1 LOSS
Signal loss of analogue input 1.
Ò
Check wiring.
ANALOG IN2 BUS1 LOSS
Signal loss of analogue input 2.
Ò
Check wiring.
8.1.4 Status indication S3 - causes for not ready remote
The causes for the
NOT READY IND.
fault signals (status indication
S0
)
are indicated within this group.
È
Description of the fault indications:
READY
Actuator can be operated from REMOTE.
NOT REMOTE
Actuator cannot be operated from REMOTE.
Possible causes:
Selector switch in position LOCAL or OFF.
WRONG COMMAND
Indicates the fact that several operation commands were received simulta-
neously via the fieldbus (e.g. REMOTE OPEN and REMOTE CLOSE simul-
taneously or REMOTE CLOSE/REMOTE OPEN and REMOTE SETPOINT
(nominal) simultaneously) or that the max. value for a nominal position has
been exceeded.
EMERGENCY MODE
The operation mode EMERGENCY is active.
EXTERNAL CONTROLS BUS
For combination fieldbus/standard interface function:
Operation via parallel interface.
EMCY STOP ACTIVE
The EMERGENCY STOP button has been operated.
ACTUATOR LOCKED
The actuator is locked (only set for special applications, e.g. bypass func-
tion).
77
Actuator controls
Manual
AUMATIC AC 01.1/ACExC 01.1 Foundation Fieldbus
NOT READY IND.
S3
READY