9.
Remove the shroud covering the DC busbars in the joining cubicle.
10. Use the joint pieces to connect the DC busbars. Tighten the bolts to 55…70 N·m
(40…50 lbf·ft).
aa
aa
aa
aa
aa
ab
ad
aa
ab
ac
ad
aa
55…70 N·m
(40…50 lbf·ft)
ac
aa
Units with single DC busbars
Units with double DC busbars
55
…
70 N·m
(40
…
50 lbf·ft)
a Joint piece
b Plain washer with electroplated zinc coating and blue chromate passivation
c Spring washer with mechanically sprayed zinc coating
d Nut
WARNING!
Make sure you install the washers in the correct order as shown. For example,
placing an unpassivated zinc-coated spring washer directly against the joint
piece will cause corrosion.
WARNING!
Do not use any joining parts other than those delivered with the unit. The parts
are carefully selected to match the material of the busbars. Other parts or
materials can form a galvanic couple and cause corrosion.
11. Reinstall any covering plates removed earlier.
12. Repeat procedure for any further sections.
Mechanical installation 55
10
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 ...