10 Commissioning
10.1 Safety Instructions
DANGER
Only qualified personnel, familiar with the “Warning” page at the beginning of
this manual, may work on or operate this device.
DANGER
When installing and connecting the device the warning notices at the
beginning of Chapter “Installation and Connection” (Chapter 5, (p. 5-1)) must
be observed.
DANGER
The device must be reliably grounded before auxiliary voltage is turned on.
The surface-mounted case is grounded using the bolt and nut, appropriately
marked, as the ground connection. The flush-mounted case must be
grounded in the area of the rear sidepieces at the location provided. The
cross-section of the ground conductor must conform to applicable national
standards. A minimum cross section of 2.5 mm² (US: AWG12 or thicker) is
required.
In addition, a protective ground connection at the terminal contact on the
power supply module (identified by the letters “PE” on the terminal
connection diagram) is also required for proper operation of the device. The
cross-section of this ground conductor must also conform to applicable
national standards. A minimum cross section of 1.5 mm² (US: AWG14 or
thicker) is required.
DANGER
Before working on the device itself or in the space where the device is
connected, always disconnect the device from the supply.
P634
P634/EN M/R-42-A // P634‑311‑653 10-1
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