2-3
2
INSTALLATION AND CONNECTION
2-2 Connecting the Power Supply
2-2 Connecting the Power Supply
2-2-1 Power supply
■ Power requirements
Power supply voltage
Power supply current
DC24V ±10%
3 to 4.5A (depends on robot type)
■ Power supply current
3A
3A
3A
3A
3A
3A
3A
3A
T4 T5 C4 C5 YMS45 YMS55
4.5A
4.5A
3A
3A
Standard model (horizontal use)
-BK model (equipped with brake for vertical use)
c
CAUTION
If the current supplied to the ERCX controller is insufficient, alarm stop or abnormal operation may occur. Use
caution when selecting a 24V power supply.
If the power supply voltage drops below the above range during operation, the alarm circuit will work and return
the controller to the initial state the same as just after power-on, or stop operation. To avoid this problem, use a
regulated power supply with voltage fluctuations of less than ±10%.
Since the controller uses a capacitor input type power supply circuit, a large inrush current flows when the
power is turned on. Do not use fast-blow circuit breakers and fuses. For the same reason, avoid turning the
power off and on again repeatedly in intervals of less than 10 seconds. This could harm the main circuit
elements in the controller.
* The robot performance may be enhanced if you have a 24V power supply with an adequately large capacity.
Please consult us for more details.
c
CAUTION
The power supply mentioned above is for operating the controller. In addition to this power supply, you will need
to provide power for the mechanical brake and I/O control through the I/O connector.
Power supply capacity required by I/O control:
50mA for emergency stop circuit + current capacity for I/O drive (depends on user application)
Power supply capacity required by brake control:
300mA for robots with brake
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