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SIEPCYEUOQ2V01A Q2V Technical Manual
3.10
Drive Wiring Protection
◆
Installing a Earth Leakage Circuit Breaker (RCM/RCD)
When the drive output does switches at high speeds, it causes high frequency leakage current. To prevent
electrical shock and fires caused by ground fault protection that is not sufficient, install an RCM/RCD. Use a high
frequency RCM/RCD at the power input side of the drive and make sure that each drive has a minimum
cumulative sensitivity amperage of 30 mA. The specialized breaker detects only the leakage current from
frequency bands that are dangerous to humans.
If a device does not have protection against high frequencies, high frequency leakage currents can cause the
device to malfunction. If you have a malfunction on a device that is not protected, decrease the carrier frequency
of the drive, switch to a better breaker, or use an RCM/RCD with a minimum cumulative sensitivity amperage of
200 mA for each drive.
These conditions can have an effect on leakage current:
•
Drive capacity
•
Carrier frequency
•
Wiring distance and types of motor cables
•
EMI/RFI filter
To prevent damage and injury to personnel and drives, use a high-frequency RCM/RCD that is rated for AC and
DC power supplies.
Note:
The manufacturer recommends the following RCMs/RCDs, which are designed to operate with high frequencies.
•
Mitsubishi Electric Corporation; NV series
•
Schneider Electric; NS series
You can use a molded-case circuit breaker (MCCB) as a replacement for an RCM/RCD that is upstream in the
power supply system.
◆
Install a Molded-Case Circuit Breaker (MCCB) or Residual Current Monitor/
Device (RCM/RCD)
Install a molded-case circuit breaker (MCCB) or a ground fault circuit interrupter (RCM/RCD) for line protection
between the power supply and main circuit power supply input terminals R/L1, S/L2, and T/L3. The MCCB/
RCM/RCD give overload protection and also prevent damage to the main circuit and the devices that are wired to
the main circuit.
Use the information in this section to select the correct MCCB or RCM/RCD and to safely connect the device.
•
The capacity of the MCCB or GFCI must be 1.5 to 2 times the rated output current of the drive. Use an MCCB
or RCM/RCD as an alternative to overheat protection (150% for one minute at the rated output current) to
prevent drive faults.
•
When you connect more than one drive to one MCCB or RCM/RCD that is shared between multiple drives or
with other equipment, use a magnetic contactor (MC) and set a sequence that de-energizes the drive when it
outputs errors.
A - Power supply
B - Drive
Figure 3.39 Connect an MCCB
WARNING!
Electrical Shock Hazard. Use an MCCB, RCM/RCD, or Magnetic Contactor (MC) to de-energize the drive before
you wire the main circuit terminal. If the main circuit terminal is energized during wiring, it will cause serious injury or death.
Summary of Contents for Q2V Series
Page 2: ...This Page Intentionally Blank 2 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 12: ...12 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 18: ...i 2 Legal Information 18 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 26: ...1 2 Features and Advantages of Control Methods 26 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 38: ...2 8 Installation Methods 38 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 70: ...3 3 Main Circuit Wiring 70 SIEPCYEUOQ2V01A Q2V Technical Manual Models B006 B012...
Page 102: ...3 17 Motor Application Precautions 102 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 138: ...4 12 Test Run Checklist 138 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 144: ...5 2 European Standards 144 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 145: ...Standards Compliance 5 5 2 European Standards SIEPCYEUOQ2V01A Q2V Technical Manual 145...
Page 146: ...5 2 European Standards 146 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 266: ...7 10 Troubleshooting Without Fault Display 266 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 284: ...8 6 Storage Guidelines 284 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 312: ...10 10 Peripheral Devices and Options 312 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 430: ...11 21 Parameters Changed by PM Motor Code Selection 430 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 731: ...SIEPCYEUOQ2V01A Q2V Technical Manual 731 Z Z pulse Auto Tuning 125...