Wiring Terminal Module Tm-Ps-A Or Tm-Ps-B - Siemens SIMATIC ET 200iSP Operating Instructions Manual

Procedure
1. Strip the insulation from the grounding conductor. Attach an M6 (ring) cable lug to the
grounding conductor.
The grounding conductor must have a cross-section of at least 4 mm
2. Attach the grounding conductor to the left of the TM-PS-A on the mounting rail on the
ground bolt (M6 nut, shim washer and spring lock washer). The tightening torque is 2 to 2.5
Nm.
3. Secure the other end to the ground bus EB.
Figure 6-4
6.4.5

Wiring terminal module TM-PS-A or TM-PS-B

Safety instructions for the power supply PS DC24V
Threat to explosion protection in the Zone 1 and Zone 21 potentially explosive area:
The isolating or disconnecting of the cables for the supply voltage of the power supply
PS DC24V at the terminal module TM‑PS‑A or TM‑PS‑B may be carried out in Zone 1/Zone 21
only in the voltage-free state. In zone 21, you may only open the enclosure of the ET 200iSP if
no explosive dust is present!
Threat to explosion protection in the Zone 2 and Zone 22 potentially explosive area:
The isolating or disconnecting of the cables for the supply voltage of the power supply
PS DC24V at the terminal module TM‑PS‑A or TM‑PS‑B may only be carried out in Zone 2/Zone
22 in case of explosion hazard only in the voltage-free state.
If there is no danger of explosion, you may isolate and disconnect the lines for the supply
voltage of the power supply PS DC24V at the terminal module TM‑PS‑A or TM‑PS‑B in Zone 2/
Zone 22 under voltage.
ET 200iSP
Operating Instructions, 11/2022, A5E00247483-AK
Grounding the mounting rail
DANGER
DANGER
Wiring
6.4 Wiring the ET 200iSP
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