242 Resistor braking
Connection procedure
WARNING!
Obey the instructions in chapter
. If you
ignore them, injury or death, or damage to the equipment can occur.
•
Precautions before electrical work
(page
) before you start
the work.
•
Connect the resistor cable at the resistor end only. If a shielded three-conductor cable
is used, cut off the third conductor. Ground the twisted shield of the cable as well as
any separate PE conductor (if present).
•
At the chopper end of the cable, connect the R+ and R- conductors of the resistor
cable together. Measure the insulation resistance between the combined conductors
and the PE conductor by using a measuring voltage of 1 kV DC. The insulation
resistance must be higher than 1 Mohm.
•
Connect the resistor cable to the R+ and R- terminals of the chopper. If a shielded
three-conductor cable is used, cut off the third conductor. Ground the twisted shield of
the cable as well as any separate PE conductor (if present).
•
Connect the thermal switch of the brake resistor to the enable input (X1) on the brake
chopper control board. Use cable specified under
Thermal protection of the resistors
(page
). If there are multiple thermal switches, connect them in series.
WARNING!
The ENABLE input terminal block of the brake chopper is at
intermediate circuit potential when the supply unit of the drive is running. This
voltage is extremely dangerous and can cause serious damage or injury if the
isolation level and protection conditions for the thermal switches are not sufficient. The
thermal switches must always be properly insulated (over 2.5 kV) and shrouded against
contact.
Start-up
Check the settings of the following inverter control program parameters (ACS880 primary
control program):
•
30.30 Overvoltage control
: Overvoltage control disabled.
For settings of other control programs, see the appropriate firmware manual.
Note:
New brake resistors may be coated with storage grease. As the brake chopper
operates for the first time, the grease burns off and may produce some smoke. Make sure
there is proper ventilation.
ohm
R-
R+
PE
Summary of Contents for ACS880-17
Page 1: ...ABB industrial drives Hardware manual ACS880 37 drives ...
Page 3: ......
Page 4: ......
Page 6: ......
Page 16: ...16 ...
Page 30: ...30 Introduction to the manual ...
Page 70: ...70 Mechanical installation ...
Page 105: ...Electrical installation 105 4 5 3 6 7 ...
Page 107: ...Electrical installation 107 5 6 4 3 ...
Page 108: ...108 Electrical installation 7 8 8 ...
Page 109: ...Electrical installation 109 9 10 ...
Page 111: ...Electrical installation 111 2 360 grounding detail a b b 1 5 a 11 b a PE 10 7 5 6 8 ...
Page 117: ...Electrical installation 117 PE 11 8 4 9 11 ...
Page 134: ...134 Control units of the drive ...
Page 140: ...140 Start up ...
Page 142: ...142 Fault tracing ...
Page 154: ...154 Maintenance 4 5 6 7 8 6 10 10 ...
Page 162: ...162 Maintenance 5 6 3 4 7 ...
Page 163: ...Maintenance 163 6 8 7 11 10 9 ...
Page 167: ...Maintenance 167 3 4b 4a 4b 8 ...
Page 185: ...Technical data 185 Declaration of Conformity ...
Page 186: ...186 Technical data ...
Page 196: ...196 Dimensions Dimension drawing examples Frame 1 R8i 1 R8i ...
Page 197: ...Dimensions 197 Frame 1 R8i 1 R8i top cable entry exit H351 H353 ...
Page 198: ...198 Dimensions Frame 1 R8i 1 R8i with brake choppers and resistors D150 D151 ...
Page 199: ...Dimensions 199 Frame 1 R8i 1 R8i with sine output filter E206 ...
Page 200: ...200 Dimensions Frame 2 R8i 2 R8i eg ACS880 37 1110A 3 IP22 ...
Page 201: ...Dimensions 201 Frame 2 R8i 2 R8i eg ACS880 37 1210A 3 IP54 ...
Page 204: ...204 Dimensions Frame 2 R8i 2 R8i with main breaker F255 and top entry top exit H351 H353 1 2 ...
Page 205: ...Dimensions 205 Frame 2 R8i 2 R8i with main breaker F255 and top entry top exit H351 H353 2 2 ...
Page 206: ...206 Dimensions Frame 3 R8i 3 R8i 1 2 ...
Page 207: ...Dimensions 207 Frame 3 R8i 3 R8i 2 2 ...
Page 208: ...208 Dimensions Frame 3 R8i 3 R8i with common motor terminal cubicle H359 1 2 ...
Page 209: ...Dimensions 209 Frame 3 R8i 3 R8i with common motor terminal cubicle H359 2 2 ...
Page 217: ...Dimensions 217 Sine filter E206 cubicle 1000 mm top cable exit ...
Page 221: ...Dimensions 221 Cubicle width 400 mm top cable exit Cubicle width 600 mm bottom cable exit ...
Page 222: ...222 Dimensions Cubicle width 600 mm top cable exit ...
Page 234: ...234 The Safe torque off function ...
Page 244: ...www abb com drives www abb com drivespartners 3AXD50000020437 Rev A EN 2015 02 06 Contact us ...