User`s manual

170 BNO 671 00 / 170 BNO 671 01
62
Mounting the Terminal Blocks
Connection The I/O periphery and the voltage supply of the branch interface module are
connected using an 8 pin terminal block.
Selection of
terminal types
Two different types of terminal can be chosen according to its usage.
These are available as a set of 3, see Overview of Ordering Information, p. 50:
Use of coding
pins
The module can be used in dangerous and safe voltage ranges. Dangerous
voltages are higher than 42.4 VAC or 60 VDC.
A set of plastic coding pins is supplied with the terminal block. Correct usage of
these coding pins will prevent insertion of terminal blocks that are wired for other
voltages.
Diagram of terminal Terminal block type Cable cross sectional area
Cage clamp terminals
up to 2.5 mm
2
(AWG 14)
Screw clamp terminals
up to 2.5 mm
2
(AWG 12)
Note: To ensure maximum possible protection, a coding must be implemented
during system setup.