Auxiliary modules
4.
AUXILIARY MODULES
Exte
rnal Brakin
g Resistors
174
Ref.2003
· 146 ·
QC-PDS
HARDWARE
4.3
External Braking Resistors
These resistors are used to dissipate the excess of energy generated at
the power DC BUS in an electrical motor braking process and cannot be
dissipated by any other means. They do not need an external power
supply.
4.3.1
Outside appearance
ER+TH-18/
independent resistors are external electrical resistors used
with QC-PS-
non-regenerative power supplies that have an internal or
external thermostat.
ER+TH-18/
+FAN
independent resistors are external electrical resistors
used with QC-PS-
non-regenerative power supplies. They have an
internal thermostat and come with a single-phase 220 V AC cooling fan.
MANDATORY.
QC-PS-
power supplies do not come with a in internal
braking resistor and, therefore, it is required that one is ALWAYS installed.
Select the resistor based on that required by the application. Selecting the
external braking resistor from table
.
NOTE.
This manual refers to other terms such as “external Ballast
resistors” and
CROWBAR
resistors” to refer to external braking resistors.
F. H4/4
External Ballast resistors. Exterior appearance.
A.
With external thermostat,
B.
With internal thermostat.
F. H4/5
Ballast resistors with internal thermostat and fan. Outside appearance.
ER+TH-18/1100
ER+TH-18/1800
ER+TH-18/2200
A
B
ER+TH-18/1000+FAN
ER+TH-18/1500+FAN
ER+TH-18/2000+FAN
Summary of Contents for QC-PDS
Page 1: ...DRIVE QC PDS Hardware manual Ref 2003...
Page 6: ...6 I 6 Ref 2003 6 QC PDS HARDWARE This page intentionally left blank...
Page 16: ...16 Ref 2003 16 Previous I QC PDS HARDWARE This page intentionally left blank...
Page 18: ...18 Ref 2003 18 Previous II QC PDS HARDWARE This page intentionally left blank...
Page 80: ...2 POWER SUPPLIES Power supplies 80 Ref 2003 QC PDS HARDWARE...
Page 138: ...3 DRIVES Drives 138 Ref 2003 QC PDS HARDWARE...
Page 174: ...4 AUXILIARY MODULES Auxiliary modules Ref 2003 174 QC PDS HARDWARE...
Page 302: ...8 INSTALLATION Installation Ref 2003 302 QC PDS HARDWARE...
Page 366: ...12 COMMERCIAL MODELS Commercial models Ref 2003 QC PDS HARDWARE 366...
Page 367: ...ANNEXES...
Page 368: ...ANNEX A1...
Page 383: ...ANNEX A2...
Page 398: ...ANNEX A3...
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