The HMI cannot be started and the browser shows „NOT FOUND, The requested URL /en/default.htm was not found on this server“.
Possible Causes & Resolutions:
Not connected to Canman Wifi (only for wireless connected iPad’s): Check the wifi settings. Choose Canman wifi and try again.
IPC has not shut down correctly: In this case probably the HMI software can’t start up automatically by restarting the machine.
Check the IPC after you switched off the main switch: Normally it will continue to run for at least 30 seconds to shut down correctly. If LED’s of IPC goes off within a few second, the battery of the UPS – unit is dead and needs to be replaced. Contact Canman for online support to restart HMI.
Note: If you use a new iPad the icons for the machine type can be produced, when you tap on “Add to home screen“ button.
Display shows „Could not activate iPad“
Possible causes & resolutions:
For connecting an alternative display / PC, please have a look at the separate FAQ.
iPad does not connect to the machine. Screen remains gray and shows no values.
Possible Causes & Resolutions:
Battery of IPC is empty when:
What does this error message mean?
CCD = concurrent connected data variables.
The amount of active CCD is limited. Opening the HMI is using some of the available CCD.
Closing the HMI is releasing the CCD again.
When you repeatedly open and close the browser, the CCD can still be in use and getting into the limitation.
(There is a delay for releasing the CCD when closing the connection).
„If a client wants to subscribe to new data variables while no more CCDs are available, a message “CCD exceeded!” will appear and there will be no communication with these data variables.“
„If a client disconnects from the visu (e.g. browser gets closed), it will take some time until the browser session expires and the CCDs from this client become available once again (session timeout of the scada server: 2 min.).
How to solve a CCD exceeded?
Close alle open browser connection (HMI app) and wait for >2 min.
Now you should be able to open the HMI without error message.
Closing apps on iPads with a home button:
Closing apps on newer iPads without a home button:
How to prevent a CCD exceeded?
Don’t open the HMI in several browser simultaneously.
Don’t repeatedly open and close the HMI in short time.
Don’t repeatedly press reload the HMI in short time.
An overvoltage suppressor (or surge suppressor) is an appliance designed to protect electrical devices from voltage spikes. A surge suppressor attempts to regulate the voltage supplied to an electric device by either blocking or by shorting to ground voltages above a safe threshold.
These surge suppressors are built in to the latest Pacemaker models and machine controls (from 2009).
Check, if one or more modules of the surge suppressors are red/defect. Replace the red modules.
Do not bridge the signalling contacts and run the machine with defective red modules because they no longer protect the system from voltage peaks!!!
If the modules are defective, check the main supply. Measure and check all voltages between the phases and all phases to earth before exchange the modules and restart the machine.
Attention: Install the safety card without using force!
The Rexroth drive has absolute encoders, therefore a battery is necessary to back-up the encoder signals. If the battery is low you will receive an error message.
Exchange the battery, according to the Rexroth manual.
Preparing of LAN or WLAN access:
How to start panel/HMI software:
Note: Panel Software is starting in Demo mode and does work for 60min only. After that it has to be restarted. To run the HMI without time limit you need a new license or if the original panel is not in use anymore the license can be transferred with the designated form:
Setting up of a new device in case of an unserviceable device:
! Attention ! The recipe from the unserviceable device is lost.