Selection criteria
S
E
LECT
ING CRI
T
ERIA
Cal
cu
lation
for the inp
ut transformer powe
r an
d ca
ble
sectio
n
5.
· 197 ·
Ref.2003
QC-PDS
HARDWARE
5.6
Calculation for the input transformer power and cable section
Calculation of the input transformer power for connection to the mains.
Calculation of the cable section for connection to the mains
T. H5/21
Input transformer/auto-transformer power.
T. H5/22
Selecting the power cable.
MAINS VOLTAGE
The QC-PDS system requires a line tension between 400 (1-10 %) V AC and 480 (1+10 %) V AC
TRANSFORMER
Transformer or auto-transformer power:
NOTE.
When using an isolating transformer, the secondary must have a star connection and its mid point must be
a c c e s s i b l e s o i t c a n b e c o n n e c t e d t o g r o u n d . T h i s m e a n s t h a t t h e o u t p u t v o l t a g e o f t h e
transformer/autotransformer is maintained for the indicated apparent power. Note that if the system has an QC-
RPS-
-
power supply, the rated power Pm of cell (2) of the previous expression corresponds to the sum of the
Pn's of all the asynchronous spindle motors of the system, whose value is the result of applying the expression
Pn=1.4·Pmax for each of them and then adding them all. Pmax will be the motor's maximum braking power and it
may be, in general, close to the power of the asynchronous spindle motor in S6. If it is a QC-PS-
power supply,
cell (2) will register the value obtained from the tables
, accordingly.
[
1
+
2
]
*
1.05 kVA
=
4
kVA
POWER CABLE FOR MAINS CONNECTION
Vline from 400 V AC to 480 V AC
Rated current through the mains cable conductor
MAINS POWER
QC-DR-X-XX DRIVE FOR FEED AXIS CONTROL:
QC-DR-X-XX DRIVE FOR SPINDLE CONTROL:
Power cable
Power cable
In Amperes
Reference
In Amperes
Reference
C
13.1
MPC-4x1.5
54.0 < C
70.0
MPC-4x25
13.1 < C
17.4
MPC-4x2.5
70.0 < C
86.0
MPC-4x35
17.4 < C
23.0
MPC-4x4
86.0 < C
103.0
MPC-4x50
23.0 < C
30.0
MPC-4x6
103.0 < C
130.0
MPC-1x70
30.0 < C
40.0
MPC-4x10
130.0 < C
156.0
MPC-1x95
40.0 < C
54.0
MPC-4x16
156.0 < C
179.0
MPC-1x120
179.0 < C
262.0
MPC-1x150
The purchase order must indicate the length of the cable.
4
(kW)
x 1000 / (
3 · Vmains)
=
A
C
Rated current on FKM motors
=
A
C
Maximum current on FM7|FM9 motors
=
A
C
Conductor section calculated for the B2 installation method, according to UNE-EN 60204-1:2007.
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...
Page 418: ......
Page 419: ......