On drive models 2xxxB, 2xxxC, 4xxxB, and 4xxxC, move the screw or screws to turn ON and OFF (enable and disable) the EMC filter.
Make sure that the symmetric grounding network is applied, and install the screw or screws in the ON position to enable the built-in EMC filter in compliance with the EMC Directive. The EMC filter switch screw or screws are installed in the OFF position by default.
| Warning |
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Electrical Shock Hazard
Disconnect all power to the drive, wait for the time specified on the warning label, and check the drive for dangerous voltages before you remove covers or touch EMC filter screws.
If you touch the screws when there are dangerous voltages, it will cause serious injury or death.
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| Warning |
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Electrical Shock Hazard
Do not remove covers or touch circuit boards while the drive is energized.
If you touch the internal components of an energized drive, it can cause serious injury or death.
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| Warning |
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Electrical Shock Hazard
Ground the neutral point on the power supply of drive models 2xxxB/C and 4xxxB/C to comply with the EMC Directive before you turn on the EMC filter.
If you turn ON the EMC filter, but you do not ground the neutral point, it can cause serious injury or death.
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| Warning |
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Electrical Shock Hazard
Connect the ground cable correctly.
If you touch electrical equipment that is not grounded, it can cause serious injury or death.
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| Notice |
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To disable the internal EMC filter, move the screws from ON to OFF and then tighten to the specified torque.
If you fully remove the screws or tighten the screws to an incorrect torque, it can cause drive failure.
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| Notice |
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Move the EMC switch screw or screws to the OFF position for networks that are not symmetrically grounded.
If the screws are not in the correct position, it can cause damage to the drive.
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Figure 1. Symmetric Grounding
| Notice |
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Damage to Equipment
When you use the drive with a non-grounding, high-resistance grounding, or asymmetric-grounding network, put the EMC Filter screw or screws in the OFF position to disable the built-in EMC filter.
If you do not disable the built-in EMC filter, it will cause damage to the drive.
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Table 1 shows asymmetric grounding networks.
Table 1. Asymmetric Grounding
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Type of Grounding
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Diagram
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Grounded at the corner of the delta connection
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Grounded at the middle of the side
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Single-phase, grounded at the end point
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Three-phase variable transformer without solidly grounded neutral
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Table 2. EMC Filter Switch Location
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Model
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Switch Location Diagram
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2004B - 2042B, 4002B - 4023B
2004C - 2042C, 4002C - 4023C
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Figure 2
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2056B, 4031B, 4038B
2056C, 4031C, 4038C
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Figure 3
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2070B, 2082B, 4044B, 4060B
2070C, 2082C, 4044C, 4060C
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Figure 4
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2110B, 4075B, 2138B - 2211B, 4089B - 4168B
2110C, 4075C, 2138C - 2211C, 4089C - 4168C
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Figure 5
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2257B - 2313B, 4208B - 4296B
2257C - 2313C, 4208C - 4296C
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Figure 6
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2360B, 2415B, 4371B, 4389B
2360C, 2415C, 4371C, 4389C
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Figure 7
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4453B - 4675B
4453C - 4675C
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Figure 8
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Figure 2. EMC Filter Switch Location 1
Figure 3. EMC Filter Switch Location 2
Figure 4. EMC Filter Switch Location 3
Figure 5. EMC Filter Switch Location 4
Figure 6. EMC Filter Switch Location 5
Figure 7. EMC Filter Switch Location 6
Figure 8. EMC Filter Switch Location 7
If you lose an EMC filter switch screw, use Table 3 to find the correct replacement screw and install the new screw with the correct tightening torque.
| Notice |
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Only use the screws specified in this manual.
If you use screws that are not approved, it can cause damage to the drive.
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Table 3. Screw Sizes and Tightening Torques
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Model
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Screw Size
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Tightening Torque
N∙m
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2004 - 2082, 4002 - 4060
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M4 × 20
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1.0 - 1.3
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2110 - 2211, 4075 - 4168
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M4 × 25
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1.0 - 1.3
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2257 - 2415, 4208 - 4675
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M5 × 25
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2.0 - 2.5
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