Siemens SIMATIC RF600 Series System Manual page 468

Accessories
10.1 Wide-range power supply unit for SIMATIC RF systems
Installation instructions
The power supply unit must be connected with the described connecting cables in the
primary and secondary circuits. The connectors at the power supply unit end may only be
removed or inserted when no voltage is applied. The degree of protection IP67 is only
achieved with correctly connected and locked connectors. Adequate spacing around the
power supply unit should be provided to ensure free convection. The connection of the
voltage supply must be made taking into account the valid country-specific regulations. It
must be possible to de-energize the power supply unit using a suitable device outside the
voltage supply. The device is connected with connectors "L" to phase and "N" to the neutral
conductor of the power network. The "PE" connector must be connected to the protective
conductor (see dimensions and pin assignment). The power supply unit may only be
operated with a connected protective conductor. The power supply unit is maintenance-free
and contains no parts to be changed by the user. The power derating when operating at an
ambient temperature of above 50 °C must be ensured by the user. The base area of the
power supply unit is screwed onto the mounting plate or mounting wall using the four
mounting holes (e.g. screw and washer M5). Optimum cooling by natural convection must be
assured at the mounting location. When used where CSA C22.2 No 107.1-01 applies a
separating element must be provided for the output circuit.
Grounding connection
For reasons of EMC, the device should also be grounded via the grounding connection
which is connected to the primary input (PE)
possible and has a cable cross-section of at least 10 mm². This will ensure that any faults
occurring on the shielding can be dissipated as well as possible.
The grounding connection
contact disc. Tighten the screw with a torque of ≃ 1.5 Nm.
Grounding connection
468
①
. Ensure that this connection is as short as
④
must be electrically connected to the ground potential using a
(a)
(b)
(c)
(d)
System Manual, 11/2018, J31069-D0171-U001-A21-7618
Hexagon-head screw (M5)
Flat washer
Cable lug
Contact washer:
To make ground contact, use contact wash-
ers according to the Siemens standard: SN
70093-6-FStflNnnc- 480h, Siemens item no.:
H70093-A60-Z3
④
,
SIMATIC RF600