February 2012 28 – 483
28.5.2 Pin layouts
X3:
+24 V NC, +24 V PLC
power supply
Power consumption of the PL 6xxx via X3, +24 V NC: max. 48 W
Power consumption of the PL 6xxx via X3, +24 V PLC: max. 21 W
The power to the PLC outputs is also supplied via the corresponding terminals on the respective
I/O module connectors for PLC outputs. The power consumption of the +24 V PLC via X3 and the
power consumption of the PLC outputs add to each other.
Pin layout of X3:
Supply voltage for logic and PLC outputs
Type of terminal X9
on PLB 62xx
Connecting terminal Assignment
1 (top terminal) + 24 V NC
2 0 V NC (ground + 24 V NC)
3 Protective ground
Minimum wire cross section of the power cables
for 24 V PLC
4 +24 V PLC
5 (bottom terminal) 0 V PLC (ground +24 V PLC)
Socket connector X9 on PLB 62xx
Connection Socket connector with tension clamp connection, type:
Weidmüller B2L 3.5/30 SN SW
2-row, 30-pin
Connectable conductors Usable conductor cross sections without wire-end sleeve:
0.08 mm
2
to 1.0 mm
2
Usable conductor cross sections with wire-end sleeve:
0.14 mm
2
0.34 mm
2
0.5 mm
2
(only with Weidmüller PZ 6/5 crimping pliers)
HEIDENHAIN recommends:
Preferably use a conductor cross section of 0.34 mm
2
if you use stranded wires with wire-end
sleeves. This cross section can be clamped appropriately and ensures a reliable terminal
connection.
If you use stranded wires with wire-end sleeves and a conductor cross section of 0.5 mm
2
,
the Weidmüller PZ 6/5 crimping pliers (setting 0.25–0.5 mm
2
) must be used for crimping.
In this case, orient the crimped wire-end sleeve before inserting it into the socket connector.
If crimping pliers from other manufacturers are used for crimping conductors with a cross
section of 0.5 mm
2
, the crimped wire-end sleeves cannot be inserted into the socket connector
and clamped appropriately, and therefore do not result in a reliable terminal connection.
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