Wieland SNH Serie Mode D'emploi page 21

Surface-mounted version
Mount the bottom part of the case on a flat surface (see Fig. SNH 6001, Chapter 11 "Di-
mensions", p. 32,for the drilled hole spacing).
Perform steps 2 to 6 as with the built-in version.
Insert the connecting wire through one of the two M20 cable entries.
Connect the connecting wires to the terminal blocks. In doing so, note the permitted
electrical and mechanical values (see Chapter 7.3 "Disposal" on page 23).
Furthermore, make sure the contactors in the housing are properly connected so that
during intended use the clearance and creepage distances are observed.
Close the housing and connect the screws. Ensure that housing is closed tightly.
Surface-mounted version with integrally extruded M12 connector
Mount the base of the housing on a suitable surface (hole spacings, see Fig.
SNH 2402 M12, Chap. 11 "Dimensions", p. 32)
Connect the connection cable to the housing.
Ensure that the housing is tightly closed and all screws are fully tightened.
4 Check before initial commissioning
Mechanical function check
•
− The operating element is fastened so that it cannot twist.
− The mounting nut is tightened so that no play in the longitudinal direction is discerni-
ble.
− EMERGENCY OFF is locked when actuated.
• Electrical function check
− Start machine.
− Actuate operating element.
Check that the machine stops!
Check whether the machine stops when the EMERGENCY STOP button is pressed.
5 Recurring technical checks
In order to guarantee faultless and durable function, inspections must be performed regu-
larly. The inspection intervals are determined by the machine designer according to danger
assessment. Those responsible for safety should text the emergency stop button at least
once per year by activating the button and checking for proper function. The following
points must be tested in every case:
• Mechanical and electrical function according to Section 3.3
No recognizable manipulation or damage
•
• Secure fastening of the components
• Leak tightness of the cable entries
• No loosened cable connections
Doc. # BA000612 – 05/2023 (Rev. E)
CAUTION
SNH EN 21 / 99