Planning the electrical installation
38
• a circuit breaker suitable for isolation in accordance with EN 60947-2.
Other regions
The disconnecting means must conform to the applicable safety regulations.
Thermal overload and short circuit protection
Thermal overload protection
The drive protects itself and the input and motor cables against thermal overload
when the cables are dimensioned according to the nominal current of the drive. No
additional thermal protection devices are needed.
WARNING!
If the drive is connected to multiple motors, a separate thermal overload
switch or a circuit breaker must be used for protecting each cable and motor. These
devices may require a separate fuse to cut off the short-circuit current.
Protection against short-circuit in motor cable
The drive protects the motor cable and the motor in a short-circuit situation when the
motor cable is dimensioned according to the nominal current of the drive. No
additional protection devices are needed.
Protection against short-circuit in the supply cable or the drive
Protect the supply cable with fuses or circuit breakers. Fuse recommendations are
given in the chapter
When placed at the distribution board, standard
IEC gG fuses or UL type T fuses will protect the input cable in short-circuit situations,
restrict drive damage and prevent damage to adjoining equipment in case of a short
circuit inside the drive.
Operating time of the fuses and circuit breakers
Check that the operating time of the fuse is below 0.5 seconds.
The operating
time depends on the type, the supply network impedance, and the cross-sectional
area, material and length of the supply cable. US fuses must be of the “non-time
delay” type.
Circuit breakers
The protective characteristics of circuit breakers depend on the supply voltage as
well as the type and construction of the breakers. There are also limitations
pertaining to the short-circuit capacity of the supply network. Your local ABB
representative can help you in selecting the breaker type when the supply network
characteristics are known.
Motor thermal protection
According to regulations, the motor must be protected against thermal overload and
the current must be switched off when overloading is detected. The drive includes a
motor thermal protection function that protects the motor and switches off the current
when necessary. Depending on a drive parameter value, the function either monitors
Summary of Contents for ACSM1 Series
Page 1: ...ACSM1 Hardware Manual ACSM1 04 Drive Modules 0 75 to 45 kW...
Page 2: ......
Page 4: ......
Page 14: ...Table of contents 14...
Page 20: ...About this manual 20...
Page 24: ...The ACSM1 04 24...
Page 30: ...Planning the cabinet assembly 30...
Page 46: ...Planning the electrical installation 46...
Page 70: ...Maintenance 70...
Page 84: ...Technical data 84...
Page 90: ...Mains filters 90...
Page 96: ...Dimension drawings 96 Frame size A...
Page 97: ...Dimension drawings 97...
Page 98: ...Dimension drawings 98 Frame size B...
Page 99: ...Dimension drawings 99...
Page 100: ...Dimension drawings 100 Frame size C air cooled module...
Page 101: ...Dimension drawings 101...
Page 102: ...Dimension drawings 102 Frame size C for cold plate mounting...
Page 103: ...Dimension drawings 103 Frame size D air cooled module...
Page 104: ...Dimension drawings 104 Frame size D for cold plate mounting...
Page 106: ...Dimension drawings 106 Mains filters type JFI xx...
Page 108: ...Dimension drawings 108 Braking resistors type JBR xx...
Page 110: ...Dimension drawings 110...
Page 111: ......