The return that is not at zero
Fictional RPD-1 motor trainer, drawing P1 revision1. Supplied virtual records only. All values are fictional problem data; no equipment operation.
Customer says: The virtual motor is weak even though its positive terminal has 12 volts.
The record includes a common source-negative reference and a loaded condition. No individual connection has been inspected.
Tests you can run
- Read the complete original circuit and condition
- Read B1+ to B1- in Group R
- Read across M1+ and M1- in Group R
- Read M1- to B1- in Group R
- Read the two terminal-to-source records
- Read B1+ to M1+ in Group R
- Read the bus appearance note