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torque wrench
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multimeter and voltage detector
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personal protective equipment.
Measuring the insulation
Measuring the insulation is typically not required in North America.
■
Measuring the insulation of the drive
WARNING!
Do not do any voltage withstand or insulation resistance tests on any part of the
drive as testing can damage the drive. Every drive has been tested for insulation
between the main circuit and the chassis at the factory. Also, there are
voltage-limiting circuits inside the drive which cut down the testing voltage
automatically.
■
Measuring the insulation of the input power cable
Before you connect the input power cable to the drive, measure its insulation according
to local regulations.
■
Measuring the insulation of the motor and motor cable
WARNING!
Obey the safety instructions of the drive. If you ignore them, injury or death, or
damage to the equipment can occur.
If you are not a qualified electrical professional, do not do installation or
maintenance work.
1. Do the steps in section
Electrical safety precautions (page 17)
before you start the
work.
2. Make sure that the motor cable is disconnected from the drive output terminals.
3. Measure the insulation resistance between each phase conductor and the protective
earth conductor. Use a measuring voltage of 1000 V DC. The insulation resistance
of an ABB motor must be more than 100 Mohm (reference value at 25 °C [77 °F]).
For the insulation resistance of other motors, refer to the manufacturer’s instructions.
Note:
Moisture inside the motor casing reduces the insulation resistance. If you
think that there is moisture in the motor, dry the motor and do the measurement
again.
62 Electrical installation – IEC
Summary of Contents for ACH480
Page 1: ... ABB DRIVES FOR HVAC ACH480 drives Hardware manual ...
Page 2: ......
Page 4: ......
Page 14: ...14 ...
Page 22: ...22 ...
Page 28: ...28 ...
Page 38: ...38 ...
Page 44: ...44 ...
Page 60: ...60 ...
Page 86: ...86 ...
Page 110: ...110 ...
Page 114: ...114 ...
Page 122: ...122 ...
Page 156: ...Frame R1 Frame R1 front side IP20 UL open type 156 Dimension drawings ...
Page 157: ... Frame R1 bottom rear IP20 UL open type Dimension drawings 157 ...
Page 158: ... Frame R1 front side UL Type 1 kit installed 158 Dimension drawings ...
Page 159: ... Frame R1 bottom rear UL Type 1 kit installed Dimension drawings 159 ...
Page 160: ...Frame R2 Frame R2 front side IP20 UL open type 160 Dimension drawings ...
Page 161: ... Frame R2 bottom rear IP20 UL open type Dimension drawings 161 ...
Page 162: ... Frame R2 front side UL Type 1 kit installed 162 Dimension drawings ...
Page 163: ... Frame R2 bottom rear UL Type 1 kit installed Dimension drawings 163 ...
Page 164: ...Frame R3 Frame R3 front side IP20 UL open type 164 Dimension drawings ...
Page 165: ... Frame R3 bottom rear IP20 UL open type Dimension drawings 165 ...
Page 166: ... Frame R3 front side UL Type 1 kit installed 166 Dimension drawings ...
Page 167: ... Frame R3 bottom rear UL Type 1 kit installed Dimension drawings 167 ...
Page 168: ...Frame R4 Frame R4 front side IP20 UL open type 168 Dimension drawings ...
Page 169: ... Frame R4 bottom rear IP20 UL open type Dimension drawings 169 ...
Page 170: ... Frame R4 front side UL Type 1 kit installed 170 Dimension drawings ...
Page 171: ... Frame R4 bottom rear UL Type 1 kit installed Dimension drawings 171 ...
Page 172: ...172 ...
Page 180: ...180 ...
Page 198: ... Declaration of conformity 198 The Safe torque off function ...
Page 206: ...Dimensions 206 BIO 01 I O extension module ...
Page 212: ...Dimensions 3AXD50000031148 rev A 212 BREL 01 relay output extension module ...