17
CHAPTER2 Configuration and Connection
C A U T I O N
C A U T I O N
C A U T I O N
(ERCX controller only)
The power consumption listed above is for ERCX controller only. Additional power
should be supplied for the mechanical brake and I/O control via the I/O connector. If the
current supplied to the controller is insufficient, an alarm stop or abnormal operation
may occur. So, carefully select a 24V power supply to match your application needs. A
24V power supply with adequate current capacity may help to upgrade robot perform-
ance. For detailed information, contact our sales office or dealer.
Power supply current required by I/O connector of ERCX controller.
2-2-2
Connecting the power supply (ERCX)
Use the power plug (supplied) to connect the power supply to the POWER connector on
the ERCX controller. Referring to the figure below, make correct connections to each
terminal. Misconnections may lead to serious accidents such as fire. The end of each
wire must be fastened with a screw so that it will not come off the plug. If the controller
becomes unstable due to noise, use of a ferrite core on the power supply line is recom-
mended as shown below.
1 2 3
1. 24V
2. N(0V)
3. (Grand)
ERCX
Wire thicker than
1.25mm
2
Fig. 2-7 Power supply connections
C A U T I O N
C A U T I O N
C A U T I O N
The ERCX controller does not have a power switch. Be sure to provide a power supply
breaker (isolation) of the correct specifications that will turn power on and off to the
entire system including the robot controller.
Power supply current required by I/O control:
50mA for emergency stop c current capacity for I/O drive
(depends on user application)
Power supply current required by brake control:
300mA for mechanical brake (if used)
