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2-2 Connecting the Power Supply

2-2-2Connecting the power supply

Connect the power supply to the power supply terminal block. Refer to the printed marks on thepanel, and correctly connect to the connection terminals. Incorrect connections can lead to major hazards such as fire, etc. Treat the end of the wires so that the wires do not disconnect from the terminal block. The methods of connecting T1 and T2 differ according to the input power voltage as shown below. Please note that the model DRCX-1020, DRCX-2010 and DRCX-2020 are specifi- cally designed to operate on 200 to 230V.

robot controller DRCX - 24902 2

Fig. 2-1 Power supply connections

1.Do not connect.Do not connect.4.4.3.2.L (AC IN)Short T1 and T2 when input voltage is AC100 to 115V. (Ground)N (AC IN)Leave T1 and T2 open when input voltage is AC200 to 230V. 1.3.2.L (AC IN) (Ground) NT1T2LNCNC N 0.75 mm N (AC IN)T1T2LNCNC 2 or more (equivalent to AWG18) AC 100V-115VAC 200V-230V

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CAUTIONThe DRCX series controller does not have a power switch. Be sure to provide a power supply breaker (insula- tion) of the correct specifications that will turn the power on or off to the entire system including the robot
INSTALLATION AND CONNECTION controller.

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WARNINGBefore 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.

2-2-3Installing an external leakage breaker

Since the robot controller drives the motors by PWM control, leakage current flows at high frequen- cies. This might cause the external leakage breaker to malfunction. When installing an external leakage current breaker, it is important to choose the optimum sensitivity current rating (I ∆ n). (Check the leakage breaker manufacturer’s data sheets to select the optimumproduct compatible with inverters.)

Leakage current DRCX4mA (Max.)

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CAUTION1.Leak current was measured with a leak tester with a low-pass filter turned on (100Hz).Leak tester: Hioki Electric 32832.When using two or more controllers, sum the leakage current of each controller. 3.Make sure that the controller is securely grounded. 4.Stray capacitance between the cable and FG may vary depending on the cable installation condition, causing the leakage current to fluctuate.

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