Inovance CS200 User Manual

Chapter 6 EMC
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Figure 6-4 Cabling diagram
CS200
Min. 200 mm
Min. 300 mm
Power cable
Motor cable
Min. 500 mm
Min. 500 mm
Braking resistor cable
Motor cable
Power cable
90°
90°
90°
Control cable
Control cable
Power cable
Control cable
Control cable
6.5 Solutions to Current Leakage
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The AC drive outputs high-speed pulse voltage, producing high-frequency leakage current during the drive
running. To prevent electric shock and even a fire caused by current leakage, it is necessary to install a
residual current circuit-breaker to the AC drive.
•
Each AC drive produces more than 100 mA leakage current. Therefore, the sensitivity current of the residual
current circuit-breaker must be above 100 mA.
•
High-frequency pulse interference may cause the circuit-breaker to malfunction, and thus you must select
residual current circuit-breaker with the high-frequency ltering function.
•
If multiple AC drives are required, each AC drive must be installed with a circuit-breaker.
•
The factors that inuence the leakage current are as follows:
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AC drive capacity
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Carrier frequency
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Type and length of the motor cable
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EMI lter
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When the leakage current causes the circuit-breaker to act, you should:
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Increase the sensitivity current of the circuit-breaker.
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Replace the circuit-breaker with a new one with high-frequency suppression function.
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Reduce the carrier frequency.
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Shorten the length of the output cable.
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Install a current leakage suppression device.
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Select a proper EMC lter to suppress the leakage current. For details, see the section 6.3.1 Installation
of the EMC Input Filter on Power Input Side.

Inovance CS200 Specifications

General

Brand	Inovance
Model	CS200
Category	DC Drives
Language	English