■
Protecting the motor against thermal overload
According to regulations, the motor must be protected against thermal overload and the
current must be switched off when overload 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 a calculated temperature
value (based on a motor thermal model) or an actual temperature indication given by motor
temperature sensors.
The motor thermal protection model supports thermal memory retention and speed sensitivity.
The user can tune the thermal model further by feeding in additional motor and load data.
The most common temperature sensor types are thermal switch (for example Klixon), PTC
or Pt100.
For more information, see the firmware manual.
Protecting the drive against ground faults
The drive is equipped with an internal ground fault protective function to protect the unit
against ground faults in the motor and motor cable. This function is not a personnel safety
or a fire protection feature. See the firmware manual for more information.
An optional ground fault monitoring device (+Q954) is available for IT (ungrounded) systems.
The option includes a ground fault indicator on the drive cabinet door.
■
Residual current device compatibility
The drive is suitable to be used with residual current devices of Type B.
Note:
As standard, the drive contains capacitors connected between the main circuit and
the frame. These capacitors and long motor cables increase the ground leakage current
and may cause nuisance faults in residual current devices.
Implementing the emergency stop function
You can order the drive with an emergency stop function (option).
See the appropriate option manual for more information.
Manual code (Eng-
lish)
User’s manual
Option
code
Emergency stop, stop category 0 (using main contactor/breaker)
+Q951
Emergency stop, stop category 1 (using main contactor/breaker)
+Q952
Emergency stop, stop category 0 (using Safe torque off)
+Q963
Emergency stop, stop category 1 (using Safe torque off)
+Q964
Emergency stop, stop category 0 or 1 (using main contactor/breaker and Safe
torque off)
+Q978
Emergency stop, stop category 0 or 1 (using Safe torque off)
+Q979
Implementing the Safe torque off function
See chapter
The Safe torque off function (page 201)
Guidelines for planning the electrical installation 77
Summary of Contents for ACS880-07LC
Page 1: ... ABB INDUSTRIAL DRIVES ACS880 07LC drives Hardware manual ...
Page 2: ......
Page 4: ......
Page 12: ...16 Resistor braking Further information 12 Table of contents ...
Page 22: ...22 ...
Page 63: ...Mechanical installation 63 10 ...
Page 64: ...64 ...
Page 91: ...a b c 4 a 8 b 16 18 PE PE 10 13 12 Electrical installation 91 11 ...
Page 100: ...With FDPI 02 modules OPEN TERMIN ATED 1 1 2 2 OPEN TERMINATED 3 100 Electrical installation ...
Page 104: ...104 ...
Page 118: ...118 ...
Page 124: ...124 ...
Page 138: ...8 9 138 Maintenance ...
Page 139: ...11 12 12 6 10 Maintenance 139 ...
Page 150: ...150 ...
Page 160: ...160 ...
Page 183: ...Technical data 183 ...
Page 184: ...184 Technical data ...
Page 189: ... Dimension drawing examples ACS880 07LC 0850A 7 Dimensions 189 ...
Page 190: ...ACS880 07LC 1660A 7 6 pulse 190 Dimensions ...
Page 191: ...ACS880 07LC 1660A 7 A004 12 pulse Dimensions 191 ...
Page 192: ...ACS880 07LC 3260A 7 192 Dimensions ...
Page 195: ... 600 mm with main breaker double busbar bottom cable entry Dimensions 195 ...
Page 197: ...Inverter module cubicle with two R8i modules bottom cable exit Dimensions 197 ...
Page 198: ...Inverter module cubicle with three R8i modules bottom cable exit 198 Dimensions ...
Page 199: ...Brake chopper cubicle Dimensions 199 ...
Page 200: ...200 ...
Page 216: ... Declaration of conformity 216 The Safe torque off function ...
Page 217: ...The Safe torque off function 217 ...
Page 218: ...218 ...
Page 220: ...220 ...