11.4
IO-Link diagnostics
IO-Link diagnostics
The manufacturer-specific diagnostics listed in the table are reported via the diagnostic
mechanism of IO-Link. The table below provides information on possible causes and remedial
measures:
Table 11-2
Possible causes and remedial measures
Diagnostics and messages
Possible causes
Possible remedial measures
Preset <> actual configuration
• Fault in communication with current
measuring module.
• Wrong current measuring module.
• Operator panel available/not available.
• Check the connection to the current
measuring module and replace the
current measuring module if neces‐
sary.
• Connect a suitable current measur‐
ing module.
• Correct the parameter "Operator pan‐
el available".
• Change the parameter "Operation at
Preset <> Actual Operation" to "ena‐
ble":
Switching element defective
• Contactor welded.
• Defective relay contacts in the 3RB24
overload relay.
• Replace the contactor.
• Replace the overload relay.
Process image error
Error in the process image of the directions
of rotation:
Direction of rotation 1 and direction of ro‐
tation 2 are active simultaneously.
• Delete the selection of the two direc‐
tions of rotation in the process im‐
age.
• Correct the selection via the process
image.
Manual mode connection abort (oper‐
ator panel)
Operator panel removed in "manual mode" Remount operator panel and perform
"reset to automatic mode". (see "Manual
mode" in the Chapter "Operation using
the operator panel (Page 95)")
1)
The overload relay is in manual mode
and cannot be controlled using the op‐
erator panel.
• There is a group error.
• The enabling module has been re‐
moved from the operator panel.
• Remove the cause of the fault and
reset the group error.
• Insert the enabling module into the
slot on the operator panel.
Thermistor overload
Overheating of the motor.
• Allow the motor to cool down.
Overload tripping
Overheating of the motor.
• Allow the motor to cool down.
Ground fault tripping
The overload relay has detected a ground
fault.
Eliminate the ground fault.
Residual current tripping
(Switching relay is switched on but
there is no current flow.)
• Defective contactor.
• Defective fuse in the main circuit.
• Defective relay in the overload relay.
• Replace the contactor.
• Replace the fuse in the main circuit.
• Replace the overload relay.
Diagnostics
11.4 IO-Link diagnostics
SIRIUS 3RB24 electronic overload relay for IO-Link
106
Equipment Manual, 07/2022, NEB969165602000/RS-AA/003
