WARNING!
Make sure that the automatic re-connection of the input power does not cause
any danger. If you are in doubt, do not implement the Power-loss ride-through
function.
Implementing a bypass connection
If bypassing is required, employ mechanically or electrically interlocked contactors between
the motor and the drive and between the motor and the power line. Make sure with
interlocking that the contactors cannot be closed simultaneously. The installation must be
clearly marked as defined in IEC/EN 61800-5-1, subclause 6.5.3, for example, “THIS
MACHINE STARTS AUTOMATICALLY”.
Bypass connection is available as a factory-installed option for some cabinet-installed drive
types. Consult ABB for more information.
WARNING!
Never connect the drive output to the electrical power network. The connection
may damage the drive.
Supplying power for the auxiliary circuits
The drive is equipped with an auxiliary voltage transformer which supplies, for example,
control unit(s) and cooling fan(s).
The user must supply these options from external power sources:
•
+G300/+G301: Cabinet heaters and/or lighting (230 or 115 V AC; external fuse: 16 A gG)
•
+G307: Connection for an external uninterruptible power supply (230 or 115 V AC;
external fuse 16 A gG)
•
+G313: Power supply connection for a motor space heater output (230 V AC; external
fuse 16 A gG).
Using power factor compensation capacitors with the drive
Power factor compensation is not needed with AC drives. However, if a drive is to be
connected in a system with compensation capacitors installed, note the following restrictions.
WARNING!
Do not connect power factor compensation capacitors or harmonic filters to the
motor cables (between the drive and the motor). They are not meant to be used
with AC drives and can cause permanent damage to the drive or themselves.
If there are power factor compensation capacitors in parallel with the input of the drive:
1.
Do not connect a high-power capacitor to the power line while the drive is connected.
The connection will cause voltage transients that may trip or even damage the drive.
2.
If capacitor load is increased/decreased step by step when the AC drive is connected
to the power line, make sure that the connection steps are low enough not to cause
voltage transients that would trip the drive.
3.
Check that the power factor compensation unit is suitable for use in systems with AC
drives, ie, harmonic generating loads. In such systems, the compensation unit should
typically be equipped with a blocking reactor or harmonic filter.
74 Guidelines for planning the electrical installation
Summary of Contents for ACS880-37LC
Page 1: ... ABB INDUSTRIAL DRIVES ACS880 37LC drives Hardware manual ...
Page 2: ......
Page 4: ......
Page 78: ...78 ...
Page 116: ...116 ...
Page 134: ...5 Set the real time clock 134 Maintenance ...
Page 144: ...144 ...
Page 167: ... Dimension drawing examples ACS880 37LC 0390A 7 with main contactor Dimensions 167 ...
Page 169: ...ACS880 37LC 1270A 7 with common motor terminal cubicle Dimensions 169 ...
Page 170: ...ACS880 37LC 1940A 7 with common motor terminal cubicle 170 Dimensions ...
Page 172: ...Location and size of input terminals Contact ABB for details 172 Dimensions ...
Page 174: ...Inverter module cubicle with two R8i modules bottom cable exit 174 Dimensions ...
Page 175: ...Inverter module cubicle with three R8i modules bottom cable exit Dimensions 175 ...
Page 176: ...Brake chopper cubicle D150 176 Dimensions ...
Page 178: ...Cubicle width 300 mm top cable exit 178 Dimensions ...
Page 179: ...Cubicle width 400 mm bottom cable exit Dimensions 179 ...
Page 180: ...Cubicle width 400 mm top cable exit 180 Dimensions ...
Page 181: ...Cubicle width 600 mm bottom cable exit Dimensions 181 ...
Page 182: ...Cubicle width 600 mm top cable exit 182 Dimensions ...
Page 198: ...198 ...
Page 200: ...200 ...