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Measuring the insulation
Measuring the insulation is typically not required in North America.
■
Measuring the insulation of the drive system
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 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.
Stop the drive and do the steps in section
Electrical safety precautions (page 14)
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 exceed 100 Mohm (reference value at 25 °C [77 °F]). For the
insulation resistance of other motors, consult the manufacturer’s instructions.
Note:
Moisture inside the motor casing reduces the insulation resistance. If moisture
is suspected, dry the motor and repeat the measurement.
1000 V DC,
> 100 Mohm
U1-PE, V1-PE, W1-PE
M
3~
U1
V1
W1 PE
ohm
■
Measuring the insulation of brake resistor and resistor 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.
52 Electrical installation – IEC
Содержание ACS480
Страница 1: ... ABB GENERAL PURPOSE DRIVES ACS480 drives Hardware manual ...
Страница 2: ......
Страница 4: ......
Страница 12: ...12 ...
Страница 23: ...See https library abb com en for all ABB product documentation on the Internet Introduction to the manual 23 ...
Страница 24: ...24 ...
Страница 34: ...34 ...
Страница 122: ...122 ...
Страница 124: ...Frame R1 Frame R1 front side IP20 UL type open 124 Dimension drawings ...
Страница 125: ... Frame R1 bottom rear IP20 UL type open Dimension drawings 125 ...
Страница 126: ... Frame R1 front side UL type 1 kit installed 126 Dimension drawings ...
Страница 127: ... Frame R1 bottom rear UL type 1 kit installed Dimension drawings 127 ...
Страница 128: ...Frame R2 Frame R2 front side IP20 UL type open 128 Dimension drawings ...
Страница 129: ... Frame R2 bottom rear IP20 UL type open Dimension drawings 129 ...
Страница 130: ... Frame R2 front side UL type 1 kit installed 130 Dimension drawings ...
Страница 131: ... Frame R2 bottom rear UL type 1 kit installed Dimension drawings 131 ...
Страница 132: ...Frame R3 Frame R3 front side IP20 UL type open 132 Dimension drawings ...
Страница 133: ... Frame R3 bottom rear IP20 UL type open Dimension drawings 133 ...
Страница 134: ... Frame R3 front side UL type 1 kit installed 134 Dimension drawings ...
Страница 135: ... Frame R3 bottom rear UL type 1 kit installed Dimension drawings 135 ...
Страница 136: ...Frame R4 Frame R4 front side IP20 UL type open 136 Dimension drawings ...
Страница 137: ... Frame R4 bottom rear IP20 UL type open Dimension drawings 137 ...
Страница 138: ... Frame R4 front side UL type 1 kit installed 138 Dimension drawings ...
Страница 139: ... Frame R4 bottom rear UL type 1 kit installed Dimension drawings 139 ...
Страница 140: ...140 ...
Страница 163: ... Declaration of conformity The Safe torque off function 163 ...
Страница 164: ...164 ...
Страница 172: ...Dimensions 172 BIO 01 I O extension module ...
Страница 178: ...178 ...