Siemens LOGO!, Manual

Page: 46 / 534

LOGO! installation and wiring
2.3 Wiring LOGO!
LOGO!
46
Manual, 04/2011, A5E03556174-01
2.3 Wiring LOGO!
Wire LOGO! using a screwdriver with a 3-mm blade.
You do not need wire ferrules for the terminals. You can use conductors with cross-sections
of up to the following thicknesses:
●
1 x 2.5 mm
2
● 2 x 1.5 mm
2
for each second terminal chamber
Tightening torque: 0.4...0.5 Nm or 3...4 in-lbs.
Note
Always cover the terminals after you have completed the installation. To protect LOGO!
adequately from impermissible contact to live parts, comply with local standards.
2.3.1 Connecting the power supply
The 230-V versions of LOGO! are suitable for operation with rated voltages of 115 V AC/DC
and 240 V AC/DC. The LOGO! 24-V and 12-V versions can be operated with a 24 VDC, 24
V AC or 12 V DC power supply. For information on permissible voltage tolerances, line
frequencies and power consumption, refer to the installation instructions in the Product
Information supplied with your device and to the technical data in Appendix A.
The CM EIB/KNX has been designed as a communication module for the LOGO! controller
and must be supplied with a mains voltage of 24 V AC/DC.
The AS Interface bus requires a special AS Interface power supply (30 V DC) that enables
simultaneous transmission of data and power for the encoders via a single line.
The LOGO! TD must be supplied with a voltage of 12 V DC or 24 V AC/DC.
CAUTION
Expansion modules DM8 230R and DM16 230R must be operated with the same type of
power supply (DC or AC) as for the connected 230-V version of the LOGO! Base Module.
The same supply output "+/- "on DC power supplies or "N/L" on AC power supplies must
connect to the same phase on both the expansion module DM8/16 230R and the
connected LOGO! 230 .... Failure to follow the instructions could result in personal injury.
Note
A power failure might cause an additional edge triggering signal at the special functions. The
stored data will be from the last uninterrupted cycle.