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Internal cooling circuit
Contents of this chapter
The cooling system of a liquid-cooled drive consists of two circuits: the internal cooling circuit
and the external cooling circuit. The internal cooling circuit covers the heat-generating
electrical components of the drive and transfers the heat to the cooling unit. In the cooling
unit, the heat is transferred to the external cooling circuit which is usually part of a larger
external cooling system. This chapter deals with the internal cooling circuit.
Applicability
The information in this chapter is applicable to cabinet-built ACS880 liquid-cooled drives.
Except where otherwise indicated, the information is also applicable to drives built out of
ACS880 liquid-cooled multidrive modules.
Internal cooling system
Each cubicle has an inlet and an outlet manifold, fitted with a stop valve and a drain valve.
The stop valves can be closed to isolate all modules in the cubicle from the main cooling
circuit.
In cabinet line-ups built by ABB, valves are color-coded:
•
Blue – Open during operation
•
Red – Closed during operation
The following diagram shows the coolant pipe connections in a drive system consisting of
a supply unit and an inverter unit. Other units, such as brake units, DC/DC converter units
have similar cooling arrangements. Other cubicles containing components that require
cooling may also contain heat exchangers.
12
Internal cooling circuit 165
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 ...
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