3-8
ET 200L Distributed I/O Device
EWA-4NEB 780600902-05
3.3
Wiring Rules
The table below shows you what you must observe when wiring the terminal
block and the supplementary terminal.
Table 3-2
Pinout of the PROFIBUS-DP Terminal Connection
Rules for ...
Terminal block
Spring Terminal
Screw-Type Terminal
Suitable cable cross-sections:
Solid cables
0.14 to 1.5 mm
2
(for PI connection: 2.5 mm
2
)
Flexible cables
S
Without wire end ferrule
S
With wire end ferrule
0.14 to 1.5 mm
2
(for PI connection: 2.5 mm
2
)
0.14 to 1.5 mm
2
Number of cables per connection
1 or combination of 2 cables to a total of 1.5 mm
2
in one wire end fer-
rule
Max. diameter of cable insulation
∅
3.1 mm
∅
3.8 mm for 2.5 mm
2
Insulation stripping length of the cables
S
Without insulation collars
S
With insulation collars
7 to 11 mm
7 to 11 mm
Wire end ferrule in accordance
with DIN 46228
S
Without insulation collars
S
With insulation collars
–
0.25 to 1.0 mm
2
–
1.5 mm
2
Shape A; up to 12 mm long
Shape E; up to 12 mm long
Shape E; 12 mm long
Shape A; up to 12 mm long
Shape E; up to 12 mm long*
Shape E; 12 mm long*
Blade with of the screwdriver
3.5 mm (cylindrical design)
Tightening torque for connecting cables
(not applicable to spring terminals)
–
0.4 to 0.7 Nm
Ground connection
up to 6 mm
2
in cable lug for M4 screw
*
Without insulation collars
To wire the terminal block (screw-type terminal), proceed as follows:
1. Strip the insulation of the wires down to 11 mm.
2. Connect the conductors. Begin on the left under the terminal block.
3. Screw the ends of the cables onto the terminal block with a tightening
torque of 0.5 Nm. Tighten the screws on the unwired terminals as well.
Rules for Wiring
Terminal Block
with Screw-Type
Terminal
Wiring
