Table 4-3 Wiring Front Connectors; Figure 4-2 Bringing The Front Connector Into The Wiring Position - Siemens SIMATIC ET 200PA SMART Operating Instructions Manual

To prepare for wiring, proceed as follows:
1. Open the front door.
2. Put the front connector in the wiring position.
To do so, push the front connector into the signal module until it snaps into place. The front
connector still protrudes from the module in this position.
Advantage of the wiring position: Convenient wiring; in the wiring position a wired front
connector has no contact with the module.
The following figure shows you how to bring the front connector into wiring position.
Figure 4-2
3. Strip the isolation from the cables in accordance with the wiring rules.
4. When using end sleeves: Press the end sleeves and the cables together.
Wiring front connectors
Table 4-3 Wiring front connectors
Step
1. Thread the strain relief for the cable string into the
front connector.
2. Do you want to bring the cables out at the bottom of the module?
If so:
Start with terminal 20 and wire the terminals in the
sequence terminal 20, 19, .... until you get to 1.
If not:
Start with terminal 1 and wire the terminals in the
sequence terminal 1, 2, .... until you get to 20.
3. Also tighten the screws of any terminals that are not wired.
4.
ET 200PA SMART
Operating Instructions, 06/2019, A5E34192013-AB
2
Bringing the front connector into the wiring position
20‑pin front connector
–
1
Start with terminal 40 or 20 and continue to wire the terminals
reciprocally, i.e. the terminals 39, 19, 38, 18, etc. until termi‐
nals 21 and 1.
Start with terminal 1 or 21 and continue to wire the terminals
reciprocally, i.e. the terminals 2, 22, 3, 23, etc. until terminals
20 and 40.
Thread the provided strain relief for the cable string into the
front connector.
4.3 Wiring the power supply and modules
40‑pin front connector
–
Connecting
47