Installation
4-20
BA9300SU EN 2.1
4.2.8 Control connections
4.2.8.1 Control cables
• Connect control cables to the screw terminals:
Max. permissible cable cross-section Screw-tightening torques
1.5 mm
2
0.5 ... 0.6 Nm (4.4 ... 5.3 lbin)
• We recommend a single-ended screening of all cables for analog signals to avoid signal
distortion.
• Connect the screens of the control cables
– with the collective screen plate to the front metal surface
(max screw length 12 mm).
4.2.8.2 Assignment of the control terminals
Protection against inverse polarity
• The protection against polarity reversal prevents the wrong connection of the internal control
inputs. It is however possible to overcome the protection against polarity reversal by applying
great force. The controller cannot be enabled in this case. The controller cannot be enabled.
Overview
K35.0115
12
7
62
34
7
63
A4ST
59
ST
A3
A2 A1
E3
E539 E4 E2 E1
28
GND
LO
HI
X5
X6
X4
Fig. 4-11 Layout of the control connections on the front of the controller