Connecting The Power Supply; Insulation Resistance And Voltage Breakdown Tests - Yamaha ERCX Series User Manual

2-2 Connecting the Power Supply

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2-2-2 Connecting the power supply
Using the power plug (supplied), connect the power supply to the POWER connector of the ERCX
controller. Make correct connections while referring to the figure below. Misconnections may result
in serious danger such as fire. Securely screw the end of each wire onto the terminal so that it will not
come loose. If the wires pick up noise and the controller becomes unstable, we recommend using a
ferrite core with the power wires as shown below.
Fig. 2-1 Power supply connections
1 2 3
1. 24V
2. N(0V)
3.
c
CAUTION
The ERCX series controller does not have a power switch. Be sure to provide a power supply breaker (insulation)
of the correct specifications that will turn the power on or off to the entire system including the robot controller.
w
WARNING
Before beginning the wiring work, make sure that the power supply for the entire system is
turned off. Doing the wiring work while power is still turned on may cause electrical shocks.

2-2-3 Insulation resistance and voltage breakdown tests

Never attempt insulation resistance tests or voltage breakdown tests on the ERCX controller. Since
capacitive grounding is provided between the controller body and 0V, these tests may mistakenly
detect excess leakage current or damage the internal circuitry. If these tests are required, please
consult your YAMAHA sales office or representative.
(Ground)
ERCX
Conductor wire: 1.25mm 2 or more