Fagor CNC 8070, Hardware Configuration

Page: 144 / 276

Hardware configuration.
CNC 8070
7.
CENTRAL U
N
IT
FOR C
ABI
NET (Q7-A
PLATFORM).
Powe
r sup
ply fo
r the modu
le.
·144·
(R
EF
: 1911)
7.4.7 NOT recommended circuits.
The following types of circuits should NOT be used.
1 Examples of circuits that cannot maintain the output voltage in an instantaneous
interruption (the output voltage drops under 20.4 V).
2 Examples of circuits that exceed the output voltage range (20.4 V to 28.8 V) due to load
fluctuations. For these circuits, use a regulated second phase to power devices with large
load fluctuations so as not to affect the CNC and other units.
Example 1. Not recommended diagram.
A rectifier circuit is a circuit that uses diodes for full wave rectification.
Example 2. Not recommended diagram.
A rectifier circuit is a circuit that uses diodes for full wave rectification.
Example 1. Not recommended diagram.
Example 2. Not recommended diagram.
AC input
CNC
Rectifier circuit
+
AC input
CNC
Rectifier circuit
AC input
CNC
Regulated
power supply
Device with large load
fluctuations.
AC input CNC
Regulated
power supply
Device with high peak
currents due to load
(rush current).