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C.15
Fault
Check IO
Modules: Failed
to receive
Module OK
status from all
modules
Communication between
the controller and IO
module has been
interrupted, or the wrong
software configuration
has been loaded that
does not match the
module that is
connected.
1. If the problem is persistent and cannot be
cleared, make sure that the correct version of
software has been loaded onto the controller.
2. Check the wiring between the IO module and
the controller on the CAN bus for loose
connections.
3. Check that the CAN bus termination resistor
DIP switch is set to ON the IO module (for
machines with more than one IO module, the last
IO module on the bus should have the termination
resistor enabled).
4. Check the power wiring to the IO module to
ensure that there are no loose connections.
5. Check the status LEDs on the IO module and
controller. The CAN LEDs should indicate activity
on the bus.
6. Intermittent C.15 faults are typically the result
of noise induced on the CAN bus disrupting
communications. To resolve these, (a) make sure
that the CAN bus shield is terminated to the
brackets at the controller and at the IO module,
(b) eliminate close parallel runs of the CAN bus
with the AC line voltage in the panel, (c) check
ground from back panel to enclosure door and
controller, (d) check for continuity between panel
ground and the metal mounting brackets on the
IO module.
C.18
Warning
Error in
Backup/Restore
An error occurred trying
to backup or restore the
machine configuration
using the backup/restore
functionality.
If the problem persists, export the logs from the
controller and contact Gardner Denver service.
C.19
Warning
Error
transferring logs
to USB
An error occurred while
trying to export the logs
to a USB device.
Remove and re-insert the USB device and try to
save the logs again. Ensure that the USB device
is formatted in a FAT16 format and make sure
that it is not removed during the save operation.
Try a different USB device. If the problem persist,
contact Gardner Denver service.
C.20
Warning
Error updating
software
An error occurred during
a software update from
an external device or
through iConn.
Check that the software has been installed
properly on the device being used to transfer the
update to the controller. Attempt to update again.
Reformat the USB device using the FAT16
format, or try a different USB device. If the
problem persists, contact Gardner Denver
service.
C.21
Warning
More than one
Modbus slave
configured
A misconfiguration on
the Modbus slave
settings has been
detected.
Check the machine configuration settings and
reload if necessary. If the problem persists,
contact Gardner Denver service.
C.22
Warning
More than one
Sequencing
configured
A misconfiguration on
the sequencing settings
has been detected.
Check the machine configuration settings and
reload if necessary. If the problem persists,
contact Gardner Denver service.
C.23
Warning
More than one
Modbus master
configured
A misconfiguration on
the Modbus master
settings has been
detected.
Check the machine configuration settings and
reload if necessary. If the problem persists,
contact Gardner Denver service.
C.48
Fault
Digital Output 1
Short High
The feedback value of
Digital Output 1 is high
while the controller is
1. Check the wiring connected to the associated
digital output for any shorts to 24VDC.
2. Using the digital output diagnostics page,