HEIDENHAIN MANUALPLUS 620 - 2.5.7 PSL 13 x low-voltage power supply unit

94 HEIDENHAIN Technical Manual MANUALplus 620
2.5.7 PSL 13x low-voltage power supply unit
PSL 130
Power supply unit to supply HSCI components
with +24 V.
 The power is supplied via line voltage (L1, L2)
and the DC-link voltage U
z
. This is used to
produce the +24 V NC and +24 V PLC output
voltages.
 Both output voltages are produced by two
internally separated power supplies. The NC
and PLC power supplies are galvanically
isolated and fulfill the requirements of
EN 61800-5-1 for "low voltage electrical
separation."
 Output voltages must be grounded according
to EN 60204-1:2006 "protective extra-low
voltage (PELV)" (see Grounding Diagram).
 The two output voltages can be connected in
parallel. This way the PSL 130 provides an
output voltage of +24 V at a maximum output
power of 750 W.
Please observe the information and regulations
for the power connection cited under “PSL 13x
low-voltage power supply unit" on page 189 and
in the "Inverter Systems and Motors" Technical
Manual.
ID 575 047-xx