196 HEIDENHAIN Technical Manual MANUALplus 620
X90: Output
voltage of the
PSL 13x
Output voltages: + 24 V (2 x)
Connection:
X74: Output
voltage of the
PSL 135
Output voltages: + 5 V
Connection:
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.
Connection:
The interface complies with the requirements of EN 61800-5-1 for "protec-
tive extra-low voltage" (PELV).
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 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 "protec-
tive extra-low voltage" (PELV).
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.
Maximum wire cross section: 4 mm2
Conductor cross section of at least 6 mm2 for connecting to signal ground
(= central functional ground).
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