MAS
NTR 735 A
INSTALLATION MANUAL
Simple Automation Control Module (MAS)
ntr_735a_e_mas_installation_manual.doc
07/1999 - 6/8
4. Connection
4.1
Connection instructions
The MILLENIUM series has been designed with ease of connection in mind. A technician or
engineer with experience of national and local electrical standards should be able to connect
MILLENIUM series modules to the sensors and actuators without difficulty.
• The input and output cables should not be in the same wiring harness.
• Keep the input/output wiring harnesses well away from the power wiring harnesses.
• Use cables which are suitable for the application.
4.2
Conductor cross-section
For the inputs / outputs use conductors : 0.13 mm
²
- 3.31 mm
²
(26 - 12 AWG).
Strip back the conductor by 7
±
0.5 mm.
Undo the terminal screw to its maximum before inserting a conductor.
To be sure of correct connection, insert the wire fully in the terminal and tighten the screws.
Maximum tightening torque 0.5 Nm (5kgfcm).
Do not coat the conductor ends with tin to prevent them breaking.
4.3
Power supply
For an AC power supply, the phase should be connected to the L terminal and the
Neutral to the N terminal. Never connect the phase to the N terminal, as the user could
receive a dangerous electric shock.
For a DC power supply, the positive conductor should be connected to the ‘+’ terminal
and the negative conductor to the ‘-’ terminal.
The power supply terminals should not be connected to the other module terminals.
!
!
