28 – 496 HEIDENHAIN Service Manual iTNC 530 HSCI
X90:
Output voltage of
the PSL 13x
Signal ground
(= functional
ground)
Connections for signal ground, which are connected internally in the PSL 13x to 0 V NC and 0 V PLC
signals.
Power connection
Connecting terminal Assignment
Terminal 1 (top) + 24 V NC
Terminal 2 0 V NC (ground + 24 V NC)
Terminal 3 + 24 V PLC
Terminal 4 (bottom) 0 V PLC (ground + 24 V PLC)
Tightening torque:
for the connecting terminals 0.5 - 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).
Conductor cross section of at least 6 mm
2
for connecting to signal ground (= central functional
ground).
PSL 130: As of variant 04 the toroidal core is integrated in the unit.
PSL 135: As of variant 02 the toroidal core is integrated in the unit.
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