**Attention**: Read this resource  material carefully and in its entirety before use, to ensure it is  understood and used properly.  Failure to properly follow the  instructions in the resource materials DPAM provides may result in  damage to your equipment.  As a result, by using the resource materials,  you are assuming the risks associated with modifying your equipment.  DENSO holds no liability, implied or otherwise, for damage, injury or  any legal responsibility incurred, directly or indirectly from the use  of the resource materials, including any loss of data or damage to  property which may occur by your use of the resource materials. The use  of the resource materials are not recommended unless you have technical  knowledge and functional experience with the equipment and related  software. DENSO is unable to provide support, remote or otherwise, for  the information included in the resource material, nor for the ancillary  topics relating to the information included in the resource materials.  Therefore, if you are not fully comfortable with it, we strongly  recommend that you send your unit to one of our Regional Support Centers  for repair.  The information contained in the resource materials are  subject to change at the sole discretion of DPAM. 


Problem

If you are using the Mini I/O cable and are not able to read a 24V coming out it could be related to several issues. 

Related Error codes:
Error Codes

Diagnostic #1: Determine if you are using external power mode. 


Step 1:

Select I/O tab (F4)

Step 2:

Select Aux tab (F6)

Step 3:

Select Int/Ext tab (F4).
Is controller set to internal or external?


Diagnostic #2: Is controller setup for NPN/PNP? 


Step 1:

Pictures show a board that is currently setup for NPN.
Is controller set to internal or external? 

Step 2:

Check fuses on I/O board.

Step 3:

Check IC chips on board. New robot system comes with 2 new IC chips.


How to Replace IO IC chip on RC7M Controller



Diagnostic #3: Confirm Mini I/O pinout 


Step 1:

Please visit DENSO Wave website:
https://www.denso-wave.com/en/robot/download/manual/

You will need to register if you don’t have a login. Download the RC7 user manuals and look for Mini I/O (CN 5) pin out. Please confirm all wiring of the 24V circuit.                


***If external power is used check and confirm all wiring of external device.