2 - Fagor Automation

Selection criteria
5.
SELECTING CRITERIA
Capacitor module selection guide
232
DDS
HARDWARE
Ref.1307
228
5.5 Capacitor module selection guide
The CM 1.60 is a capacitor module that increases the electrical capacitance
of the power bus in 4230 µF. It should be installed on machines with
very short duty cycles (very repetitive accelerations and decelerations)
and with low braking energy (e.g. a punch press).
The following table indicates how much extra energy W is stored in (Ws)
when the bus voltage increases from the rated value VBus to the Ballast
circuit activating voltage (also called Crowbar activation voltage, VCrowbar).
Considering the different combinations of power supplies modules + CM
1.60 and different mains voltage.
with units:
C in Farads
VCrowbar in volts
VBus = 2·Vmains in volts
W in Ws jules)
C
W = [ V² - V²
2
CROWBAR BUS ]
(Ws)
T. H5/15 Extra energy that may be stored (in Ws).
Modules Capac. Crowbar Crowbar W (Ws) W (Ws)
activation deactivation for for
voltage voltage Vmains Vmains
(µF) (V) (V) 400 V 460 V
PS-25B4 820 770 760 111.9 69.6
PS-65A 940 770 760 128.3 79.8
XPS-25 1175 770 760 160.3 99.7
XPS-65 2520 770 760 343.8 213.8
CM 1.60+PS-25B4 5050 770 760 689.1 428.5
CM 1.60+PS-65A 5170 770 760 705.4 438.7
CM 1.60+XPS-25 5405 770 760 737.5 458.6
CM 1.60+XPS-65 6750 770 760 921.0 572.7