Description
38
1.
DESCRIPTION
System Description
Ref.2003
· 30 ·
QC-PDS
HARDWARE
1.2 System Description
The QUERCUS servo drive by FAGOR is a compact and stackable
designed PDS. It is connected directly to a TN or TT three-phase mains
with line frequencies of between 50 (1-4 %) Hz and 60 (1+3.3 %) Hz and
line voltages between and 400 (1-10 %) V AC and 480 (1+10 %) V AC.
This system supplies the electric motors with a three-phase voltage of 400
(1- 4.5 %) V AC and a variable frequency with which it will govern its
speed.
Certain mandatory protection elements must be added between the mains
and the QC-PDS system. Others may be optional. These elements are:
Depending on users needs, the QC-PDS system may consist of the follow-
ing modules:
Name Symbol Use
Main switch
-S1
Mandatory
Fuses
-Fi
Mandatory
Differential breaker
-Q1
Mandatory
Transformer or autotrans-
-T
Optional
Contactor*
-KM1
Mandatory
Mains filter
MAIN FILTER
Mandatory
Chokes*
CHOKE
Mandatory
* only for
QC-RPS-
-
regenerative power supplies.
Power supplies
·Non-regenerative· power supplies.
QC-PS-
Stabilized regenerative power supplies
(rectifier/booster)
QC-RPS-
-
24 V DC auxiliary power supply
without a soft-start circuit or snubber circuit
QC-APS-15
+24 V DC auxiliary power supply
with a soft-start circuit and snubber circuit
*
QC-APS3-15
Drives
Single-drives
QC-DR-
-
Dual-drives
QC-DR-
+
-FD2
Auxiliary modules
Mains filters
MAIN FILTER-
A-
Coils CHOKE RPS-
-
Bus protection module
QC-BPM-100
Capacitor module
QC-CM-75
External braking resistors
**
ER+TH-18/
,
ER+TH-18/
+FAN
*
only for
QC-RPS-
-
regenerative power supplies.
**
must be installed on
QC-PS-
non-regenerative power supplies.
INFORMATION. The QC-PDS system has been manufactured in
accordance with EN 60204-1 and is compliant with the European Directive
2014/35/EU on Low Voltage.
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