Permanent Magnet Synchronous Motor; Supply Connection; Disconnecting Device (Means) - ABB ACS800-U4 Hardware Manual

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Note 2: Explosion-safe (EX) motors
The motor manufacturer should be consulted regarding the construction of the motor insulation and
additional requirements for explosion-safe (EX) motors.
Note 3: High-output motors and IP 23 motors
For motors with higher rated output than what is stated for the particular frame size in IEC 50347 (2001)
and for IP 23 motors, the requirements of range "100 kW < P
100 kW. The requirements of range "P
< P
N
Note 4: HXR and AMA motors
All AMA machines (manufactured in Helsinki) to be supplied by a drive have form-wound windings. All
HXR machines manufactured in Helsinki since 1997 have form-wound windings.
Note 5: ABB motors of types other than M2_, M3_, HX_ and AM_
Select according to non-ABB motors.
Note 6: Resistor braking of the drive
When the drive is in braking mode for a large part of its operation time, the intermediate circuit DC
voltage of the drive increases, the effect being similar to increasing the supply voltage by up to 20
percent. The voltage increase should be taken into consideration when determining the motor insulation
requirement.
Example: Motor insulation requirement for a 400 V application must be selected as if the drive were
supplied with 480 V.

Permanent magnet synchronous motor

Only one permanent magnet motor can be connected to the inverter output.
Install a safety switch between a permanent magnet synchronous motor and the
motor cable. The switch is needed to isolate the motor during any maintenance work
in the drive.
Wire the position information of the safety switch to the drive. Before starting any
maintenance work on the drive, the safety switch must be opened, and the open
position acknowledged by the drive application program.

Supply connection

Disconnecting device (means)

Install a hand-operated input disconnecting device (means) between the AC power
source and the drive. The disconnecting device must be of a type that can be locked
to the open position for installation and maintenance work.
EU
To meet the European Union Directives, according to standard EN 60204-1, Safety
of Machinery, the disconnecting device must be one of the following types:
• a switch-disconnector of utilization category AC-23B (EN 60947-3)
• a disconnector that has an auxiliary contact that in all cases causes switching
devices to break the load circuit before the opening of the main contacts of the
disconnector (EN 60947-3)
• a circuit breaker suitable for isolation in accordance with EN 60947-2.
Electrical installation planning
< 350 kW".
< 350 kW" apply to motors with P
N
> 350 kW" apply to motors with P
N
N
within the range of "100 kW
N
<