July 2010 17 – 253
Power supply by
UVR
Power is supplied through the 50-line ribbon-cable connector X69 and in addition through a 5 V
terminal on the UVR.
A more powerful switching power supply and an additional 5 V terminal is built into the UVR.
--> The iTNC can be powered correspondingly.
The UV 105 is not required!
When using HEIDENHAIN inverters that are provided with the additional 5 V terminal on the
front panel (e.g., UR xxx D, UV xxx D, UVR xxx, UVR xxx D), an accessory unit for the power
supply of the iTNC 530 is not required.
For information on HEIDENHAIN compact inverters and power supply units refer to the
Service Manual for Inverter Systems and Motors.
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