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PHOENIX CONTACT 3827_en_B
Table 10-3 Detecting and removing errors: I/O extension module
LED,
I/O module
Current state and possible
cause
Solution
PWR off No power supply. Mains
probably switched off.
• Switch the mains on, restore the power supply.
• Ensure the power select switch is in the correct position for the type
of power (RAD-900-DAIO6 only)
• Check the fuse (RAD-900-DAIO6)
DAT off No communication between
wireless module and I/O
extension module. Wireless
module possibly in “Serial data”
operating mode.
• Check whether the I/O extension module is properly snapped onto
the DIN rail connector and whether it is connected to the wireless
module.
• Check the operating mode of the wireless module using the
PSI-CONF software. The wireless module must either be in “I/O
data” or “PLC/Modbus RTU” mode (see Section 5.6, “Configuration
via PSI-CONF software”).
• Reset the wireless module to the default settings (I/O data mode,
see “Resetting to the default settings” on page 67), if required.
ERR on Critical internal error
Example: Technical defect
• Please contact Phoenix Contact technical support.
ERR
flashing
slowly
(1.4 Hz)
I/O-MAP address changed
Example: The white
thumbwheel setting has
accidentally been modified and
the modification has not yet
been confirmed via the SET
button.
• Check the IO-MAP address setting on the white thumbwheel of the
I/O extension module.
• If necessary, set the correct I/O-MAP address and press the SET
button on the wireless module.
In I/O data mode
ERR
flashing fast
(2.8 Hz)
Missing input module
Example: An output module
does not have the
corresponding input module
with the same I/O-MAP address.
• Check whether an input module with the same I/O-MAP address has
been assigned to each output module.
• Set the I/O-MAP address (01 ... 99) using the white thumbwheel on
the extension module. The input module must be provided with the
same I/O-MAP address as the assigned output module at the other
wireless station.
No bus communication, no
wireless connection present
• See measures for the wireless module, page 117
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