IFM BasicController CR0431, Руководство по программированию, Страница: 12 / 228

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ifm Programming Manual BasicController relay CR0431 v03.03.00 05 / 2018
System description Hardware description
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Start conditions
19673
The device does not start before sufficient voltage is applied to the supply connection VBB15.
In vehicles VBB15 is the plus cable switched by the ignition lock.
A voltage > 8 V is deemed sufficient.
Permissible operating voltage
→ data sheet
Relays can only be switched on again if VBBs is applied and SUPLY_SWITCH is closed.
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Important note to program the device
20763
Applies to the following devices:
• BasicController relay CR0431
► For the time of programming interconnect the connections B:1 (VBB15) and B:8 (VBBs).
Otherwise programming is not possible.
Background:

The controller resets all outputs when programming begins, also SUPPLY_SWITCH.

Without VBB15 the controller would be separated from the voltage supply and is switched off.

When the controller is switched on again, the device is in bootloader mode.
The programmer has to load the Basic System to the device again.
Then reload the application program to the device.
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Principle block diagram
19672
Figure: principle block diagram of supply and relays