fghj
17
CBX
-
+
CH 4
4-‐20mA
-
+
CH 3
4-‐20mA
fig 11
Connection terminal
In the lower left corner of the cabinet there are connection terminals for the external
wire connections. To the lower left corner of this terminal block there is a safety switch
that will disconnect the power when the cabinet door is opened. There is also an
emergency motor control switch that is located on the box for the terminal block inside
the CBX. The switch can be located on top of the terminal box or under the lid,
fig 12
.
fig 12
Appendix 6 , Optional 4-‐20mA output module for BB1/BB2
Introduction
The BB1/BB2 4-‐20mA module is used to expand the BB1/BB2 central unit from two to
four 4-‐20mA loops. It is assumed that the user is familiar with the BB1/BB2 and 4-‐20mA
technology.
Module overview
The mA expansion module has two active 4-‐20mA outputs. The module is connected to
the control box via a 34 pin connector, and fixed with three M2.5 screws.
fig 13
