HEIDENHAIN iTNC 530 HSCI - Signal Ground (= Functional Ground); X74: Output Voltage of the PSL 135; X90: Output Voltage of the PSL 13 X

244 HEIDENHAIN Technical Manual iTNC 530 HSCI
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:
Attention
The interface is electrically separated (protective extra-low voltage (PELV)
as per EN 61800-5-1).
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 Nm to 0.6 Nm
Strain relief:
Ensure that the connecting cables are not subject to excessive strain.
Attention
The interface is electrically separated (protective extra-low voltage (PELV)
as per EN 61800-5-1).
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 Nm to 0.6 Nm
Strain relief:
Ensure that the connecting cables are not subject to excessive strain.
Maximum wire cross section: 4 mm
2
Note
Conductor cross section of at least 6 mm
2
for connecting to signal ground
(= central functional ground).