Operating Modes; Maintenance, Test, Trouble Shooting; Behaviour In Case Of Trouble - PMA KS 98-1 Mode D'emploi

Maintenance, test, trouble shooting

9.9

Operating modes

Online/Offline
q
For configuration changing, switch the unit to 'Offline' and back to 'Online' ( Miscellane -
ous, Online/Offline).
a
When switching the unit to status off-line, the outputs will remain in the status at switch-over time !!!
Manual/automatic operation
q
When using controllers, automatic or manual operation may be requested by several points. The
controller leaves the manual mode, when all control signals request automatic operation ("Hand"
hat Vorrang!).
Example: INP6 is provided for potentiometric transducer and connected accordingly (position
feed-back).
From the calibration menu, the controller can be switched to manual operationn (H, with Man.
displayed at the bottom left). Now, I and M can be used to mark line Y and the actuator can be
driven to its limits by means of I / D. After calibration, the manual mode must be switched off
again on this page (press H again).
Switching over to manual mode is also possible for programmers (if provided in the engineering), for
changing the program set-point (analog or digital) manually. Programmer operation continues in the
background.
10.
Maintenance, test, trouble shooting
10.1

Behaviour in case of trouble

The unit needs no maintenance. In case of trouble, check:
w Is the unit in on-line mode ?
w Is the supply voltage connected correctly? Are voltage and frequency within the tolerances?
w Were all connections made correctly ?
w Do the sensors and actuators work properly?
w Is the engineering OK?
w Is the unit configured for the required operating principle?
w Do the adjusted parameters have the required effect?
w Are the I/O extension modules plugged in and clicked in position correctly (modular option C)?
w Is a terminating resistor activated (can be required dependent on the instrument position in the
bus topology with CANopen and PROFIBUS DP)?
w Were the required EMC measures carried out (screened cables, earthings, protective circuits, etc.)?
w Does the diagnostic page of the test engineering indicate an error?
Operating modes 48
9499-040-44318