February 2012 28 – 495
X33:
Input voltage of
the PSL 130
Supply voltage: 400 V ± 10 %
Through the connection to the 400 V AC line voltage (L1, L2) via X33, the output voltages of the
PSL 130 are available as soon as the machine’s main switch has been turned on.
This is necessary to boot the control.
X69:
CC supply voltage
and control signals
See “X69: CC supply voltage and control signals” on page 28 – 469.
X74:
Output voltage of
the PSL 135
Connecting terminal Assignment
L1 Phase 1 / 400 V~ ±10 % / 50 Hz to 60 Hz
L2 Phase 2 / 400 V~ ±10 % / 50 Hz to 60 Hz
Equipment ground (YL/GN), ≥ 10 mm
2
Connecting lead:
Wire cross section: at least 1.5 mm
2
(AWG 16)
Conductor protection:
Fuses or a motor protection switch of 6.3 A or greater depending on
the wire cross section used.
Line fuse:
Internal protection of the PSL (4 A).
Tightening torque:
for the connecting terminals 0.5 - 0.6 Nm
Grounding terminal:
≥ 10 mm
2
(AWG 6)
Strain relief:
Ensure that the connecting cables are not subject to excessive strain.
HEIDENHAIN recommends connecting the PSL 130 power supply unit to the U
z
DC-link voltage
and the 400 V supply voltage (X33).
Connecting terminal Assignment
Terminal 1 (top) + 5 V NC
Terminal 2 0 V NC (also ground +24 V NC)
Tightening torque:
for the connecting terminals
0.5 to 0.6 Nm
Strain relief:
Ensure that the connecting cables are not subject to excessive strain.
The interface complies with the requirements of EN 61800-5-1 for "protective extra-low voltage"
(PELV).
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