Support

Problem:

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.

Problem:

Graph remains grey and shows no curves at all.

Possible Causes & Resolutions:

Avoid very fast switching between pages. This causes overloading of the browser.

Close alle open browser connection (HMI app) and wait for >2 min.
Now you should be able to open the HMI without error message.

Close HMI app on iPads with home button:

1. Double-click the Home button to show your most recently used apps.
2. Swipe right or left to find the app that you want to close.
3. Swipe up on the app’s preview to close the app.

Close HMI app on newer iPads without home button:

1. From the Home Screen, swipe up from the bottom of the screen and pause in the middle of the screen.
2. Swipe right or left to find the app that you want to close.
3. Swipe up on the app’s preview to close the app.

Problem:
Display shows „Could not activate iPad“

Possible causes & resolutions:

• No internet connection > Check network connection of machine.
• Firewall blocks connection to iPad > Try to connect the iPad to other Wifi without firewall, for example hot spot of mobile phone.
• Try to make a reset by holding down the home and power button simultaneously for a few seconds until the Apple logo appears. Don’t worry, the iPad doesn’t have any data inside, it only displays the values from the browser. Can Man does not use an Apple ID to activate the iPad’s, so the iPad is resettable.
• iPad might be defective > We will offer new one or you organize it locally.

For connecting an alternative display / PC, please have a look at the separate FAQ.

Important things to know:

• One canbody cycle = 0 – 360 °
• “Mclk Sync Deg” stands for Machine clock synchronization (in °). You can shift the clock/cycle signal (0-360 °) in order to get a proper synchronization of the graph to the measured canbody.
  • A smaller value will shift the graph to the left,
  • a bigger value to the right.

1. Problem:

The graph is not showing any values / no picture at all.

Possible Causes & Resolutions:

• The first parameter “Mclk Sync Degree” has a “dead area”, where the tool sensor detected the gap between the two cans, rather than the cans. As a result, there might be no graph showing. No graph showing means the system is not detecting that a can was welded.
  ➔ If no graph is shown, try to enter values in large steps. You should now see a graph but might have to adjust the measured area. Please see second problem for the resolution.

2. Problem:

The graph of the G-Sensor does not show a steady graph but shows greater fluctuations (= can gap).

Possible Causes & Resolutions:

• The G-Sensor is not correctly installed and measures outside the canbody cycle.
  ➔ In order to remove the greater fluctuations out of the graph-frame, increase the “Mclk Sync Degree” value to shift the graph to the right, and decrease the value to shift the graph to the left.
  Example: Your graph looks like the left picture below. You will have to decrease your value by about 40° in order to receive a graph like on the right.E.g. you have a value of 180° and have to decrease by 40° = enter 140° OR you have a value of 20° and have to decrease by 40° = enter 340° (canbody cycle goes from 0-360°)

Problem:

iPad does not connect to the machine. Screen remains gray and shows no values.

Possible Causes & Resolutions:

• Connection via Wi-Fi
  • In the settings, check whether the iPad has connected to the correct Can Man Wi-Fi
  • If no Can Man Wi-Fi is visible, check router/wireless access point.
    ➔ Restart router/wireless access point. If still no Can Man Wi-Fi is visible, the router/wireless access point has lost the settings or is broken. Contact Can Man via by opening a new ticket.
• Connection via Cable
  • Check all plug connections of the network cable between IPC and iPad
  • Check iPad adapter power supply. The adapter must always be powered, otherwise the connection will not work.

Problem:
The decrement counter shows the number of cans between the welding station and first light barrier of the eject station. If the value is wrong, the ejection of cans is out of sync with the faulty products.

Resolution:

• The reason for a wrong decrement counter can be a reset during production.
  Attention(!): Reset the decrement counter only if the production is stopped and no cans are between the welding station and eject station, NEVER during production! This is important to avoid that bad cans go to the downline.

Problem:
The decrement counter is not stable, which leads to continuously smaller values during full production.

Possible Causes & Resolutions:

• Tooling sensor signal is not stable. The tooling sensor might not detect all cans properly due to the distance between the cans and sensor.
  ➔ Please check the distance of the sensor to the can, it should be as close as possible without it touching the can.
• Cycle signal of machine is not stable.
  ➔ Check the cycle signal: If the machine signal comes from a sensor, check sensor settings or replace sensor.

Possible cause:

• Check if the voltage pick – up “tongues” are worn.
• Check if there’s enough “contact pressure” of those tongues
• If they are bent; change them, do not attempt to bend them yourself, they might break!

Cause may be a short. Make sure that the bracket of the IR-sensor is complete isolated. No bolts etc. should touch the rocker arm or other parts.