Structure Of Peripheral Equipment - Panasonic M2X Series Instruction Manual

For 3-phase induction motor speed control
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Conformity to EC Directive / UL Standard

Structure of peripheral equipment

Installation environment
Use the inverter in an environment conforming to Pollution Degree 1 or 2 prescribed in IEC60664-1.
(Example: Install the inverter in a control panel with IP54 protection structure.) ∗1
Circuit breaker /
Fuse
Power supply
400 V: 3-phase 380V - 460V
・ Use the power supply in an environment conforming to Overvoltage Category III prescribed in
IEC60664-1.
・ Be sure to ground the neutral terminal of the power supply.
・ Select a cable size conforming to EN60204-1.
Circuit breaker / Fuse
Be sure to connect a circuit breaker conforming to the IEC and UL standards, or a fuse conforming to
the UL standard between the power supply and the noise filter. ∗2
Noise filter
To provide a noise filter for the power supply with several inverters connected, consult the noise filter
manufacturer.
Surge absorber
Connect a surge absorber in the noise filter's primary circuit.
Conformity to the UL Standard
When the above ∗1 and ∗2 installation conditions are satisfied, the inverter conforms to the UL508C
standard (File No. E164620).
<Note>
Before conducting a withstand voltage test for machinery or equipment, be sure to remove the surge
absorber. Otherwise, the surge absorber may be damaged.
Control panel
Controller
Signal line
noise filter
Noise filter
Surge
absorber
Protective earth
(PE)
+10%
-15%
-
-
70
Inverter
Signal line
noise filter
R/L1
General-purpose
S/L2
T/L3
U/T1
V/T2
W/T3
50/60Hz
motor

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