6-7
6-1 Inspection and Maintenance
6
Inspection and Maintenance
Megger test
• For a megger test of the external circuit, be sure to disconnect all the terminals of the Inverter so
as not to apply the test voltage to the Inverter.
• Use a high resistance tester for a power distribution test of the control circuit. Do not use a megger
or buzzer.
• Conduct an Inverter megger test only to the main circuit, not to the control circuit.
• Use a 500 V DC megger for a megger test.
• For a megger test of the Inverter main circuit, remove the short-circuit bar used for switching the
Inverter built-in filter function and then short-circuit terminals R/L1, S/L2, T/L3, U/T1, V/T2, W/T3,
P/+2, +1, N/-, RB, Ro, and To with the wires, as shown below.
After the megger test, remove the short-circuit wires from terminals R/L1, S/L2, T/L3, U/T1, V/T2,
W/T3, P/+2, +1,
N/-, RB, Ro, and To, and reconnect the short-circuit bar for switching the Inverter built-in filter
function.
Note that the RB terminal is provided only for the Inverters with 22 kW or lower capacity.
Withstand Voltage Test
Do not conduct a withstand voltage test on any part of the Inverter.
Doing the test is dangerous and may cause damage or deterioration to the parts inside the Inverter.
Checking the Inverter and Converter
• The quality of the Inverter and converter can be checked using a tester.
(Preparation)
Disconnect the externally connected power supply wires (R/L1, S/L2, T/L3), the motor connection
wires (U/T1, V/T2, W/T3), and the regenerative braking resistance (P/+2, RB).
Prepare a tester. (Usable range is 1
Ω
measurement resistance.)
(Checking method)
• The quality can be judged by measuring the conduction state of Inverter main circuit terminal
blocks R/L1, S/L2, T/L3, U/T1, V/T2, W/T3, RB, P/+2, and N/- while alternating the tester polarity.
Note 1: Before checking, measure the voltage between P/+2 and N/- at DC voltage range in advance, and
confirm that the smoothing capacitor is sufficiently discharged.
R/L1
S/L2
T/L3
Ro
To
Ground terminal
Power
supply
Do not connect the
power wire.
500 V DC megger
Be sure to remove the short-circuit bar for
switching the built-in filter function.
Ground terminal
P/+2
+1
N/-
RB
U/T1
V/T2
W/T3
Do not connect to the
motor.
Motor
IM
Содержание 3G3RX Series
Страница 1: ...Cat No I560 E1 03 USER S MANUAL SYSDRIVE RXSERIES High function General purpose Inverter ...
Страница 2: ......
Страница 17: ...Chapter 1 Overview 1 1 Functions 1 1 1 2 Appearance and Names of Parts 1 4 ...
Страница 22: ......
Страница 23: ...Chapter 2 Design 2 1 Installation 2 1 2 2 Wiring 2 6 ...
Страница 48: ......
Страница 108: ......
Страница 324: ......
Страница 325: ...Chapter 5 Maintenance Operations 5 1 Protective Functions and Troubleshooting 5 1 5 2 Warning Function 5 10 ...
Страница 337: ...Chapter 6 Inspection and Maintenance 6 1 Inspection and Maintenance 6 1 ...
Страница 348: ......
Страница 349: ...Chapter 7 Specifications 7 1 Standard Specification List 7 1 7 2 Dimensional Drawing 7 6 7 3 Options 7 14 ...
Страница 358: ...7 9 7 2 Dimensional Drawing 7 Specifications 3G3RX A2300 A4300 368 79 265 310 10 510 540 2 φ10 195 45 80 265 ...
Страница 360: ...7 11 7 2 Dimensional Drawing 7 Specifications 3G3RX A2550 380 670 700 2 φ12 12 380 480 250 352 79 ...
Страница 361: ...7 12 7 2 Dimensional Drawing 7 Specifications 3G3RX A4750 A4900 2 φ12 2 12 300 390 268 700 79 670 357 ...
Страница 362: ...7 13 7 2 Dimensional Drawing 7 Specifications 3G3RX A411K A413K 2 φ12 2 12 380 480 270 740 79 710 480 ...
Страница 369: ...7 20 7 3 Options 7 Specifications 3G3AX RBC4001 3G3AX RBC6001 100 150 280 300 5 70 100 70 150 390 410 5 ...
Страница 392: ......
Страница 393: ...Appendix Appendix 1 Parameter List App 1 Appendix 2 Product Life Curve App 41 Appendix 3 Life Alarm Output App 42 ...
Страница 436: ......
Страница 437: ...Index ...
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