
Memory unit
5
Connection for FSO safety functions module
6
Control panel and PC connection
7
Terminal blocks on the inverter control unit.
8
Fiber optic link to each inverter module. Similarly, each supply module is connected to the supply
control unit by fiber optic cables.
9
Terminal blocks for customer connections installed in the drive cabinet.
10
Supply unit (consisting of one or more supply modules)
11
DC intermediate link
12
Inverter unit (consisting of one or more inverter modules)
13
Optional brake chopper (+D150) and resistors (+D151)
14
Door switches and lights
■
Main disconnecting device [Q1]
The drive is equipped with a main circuit breaker [Q1]. Units with 12-pulse supply connection
(A004), as well as some of the largest 6-pulse types, have two breakers, [Q1.1] and
[Q1.2]. To close the main breaker, auxiliary voltage must be switched on, and the grounding
switch (if present) must be open.
By racking out the breaker, you can isolate the main circuit of the drive from the power line.
WARNING!
The main disconnecting device does not isolate the input power terminals, AC voltage
meters, or the auxiliary voltage circuit from the power line. To isolate the auxiliary
voltage circuit, open the auxiliary voltage switch [Q21]. To isolate the input power
terminals and AC voltage meters, open the main breaker of the supply transformer.
■
Auxiliary voltage switch [Q21]
The auxiliary voltage switch controls the supply to the internal auxiliary voltage transformers.
The transformer feeds the control circuits inside the drive such as cooling fans, relays and
measuring equipment.
Note:
Frame 1×R8i+1×R8i units are not fitted with an auxiliary voltage switch. The auxiliary
voltage is switched on and off by the main disconnecting device [Q1], and protected by fuse
disconnectors F20.1…F20.3.
■
Grounding (earthing) switch [Q9], optional
The grounding switch [Q9] (F259) connects the main AC power bus to the PE
busbar.
To close the grounding switch, auxiliary voltage must be switched on, and the main
disconnecting device must be open.
WARNING!
The grounding switch does not ground the input power terminals of the drive or the
auxiliary (control) voltage circuits.
36 Operation principle and hardware description
Summary of Contents for ACS880-37LC-0390A-7
Page 1: ... ABB INDUSTRIAL DRIVES ACS880 37LC drives Hardware manual ...
Page 2: ......
Page 4: ......
Page 13: ...16 Resistor braking Further information Table of contents 13 ...
Page 14: ...14 ...
Page 24: ...24 ...
Page 28: ...28 ...
Page 50: ...50 ...
Page 70: ...70 Mechanical installation ...
Page 110: ...10 110 Electrical installation ...
Page 113: ...With FDPI 02 modules OPEN TERMINATED 1 1 2 2 OPEN TERMINATED 3 Electrical installation 113 11 ...
Page 134: ...134 ...
Page 140: ...140 ...
Page 148: ...a b c 148 Maintenance ...
Page 151: ...4 5 6 Maintenance 151 ...
Page 164: ...164 ...
Page 174: ...174 ...
Page 196: ...196 ...
Page 199: ... Dimension drawing examples ACS880 37LC 0390A 7 with main contactor Dimensions 199 ...
Page 201: ...ACS880 37LC 1270A 7 with common motor terminal cubicle Dimensions 201 ...
Page 202: ...ACS880 37LC 1940A 7 with common motor terminal cubicle 202 Dimensions ...
Page 205: ...Location and size of input terminals Contact ABB for details Dimensions 205 ...
Page 206: ... 100 kA input cubicle option F274 206 Dimensions ...
Page 208: ...Inverter module cubicle with two R8i modules bottom cable exit 208 Dimensions ...
Page 209: ...Inverter module cubicle with three R8i modules bottom cable exit Dimensions 209 ...
Page 210: ...Brake chopper cubicle 210 Dimensions ...
Page 212: ...Cubicle width 300 mm top cable exit 212 Dimensions ...
Page 213: ...Cubicle width 400 mm bottom cable exit Dimensions 213 ...
Page 214: ...Cubicle width 400 mm top cable exit 214 Dimensions ...
Page 215: ...Cubicle width 600 mm bottom cable exit Dimensions 215 ...
Page 216: ...Cubicle width 600 mm top cable exit 216 Dimensions ...
Page 238: ...238 ...
Page 240: ...240 ...