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3.4
Securing the device with clamps
Requirement
Accessories
Clamp
Tool
Procedure
Figure 3-3
1. Disconnect the device from the power supply.
2. Working from the front, insert the device into the 19" rack on the swivel arm or in the
3. Fasten the control unit from the rear using the clamps.
4. Tighten the setscrews to a torque of 0.4 - 0.5 Nm.
IP65 degree of protection
The plant builder is responsible for the correct installation of the device.
The degree of protection IP65 is only guaranteed for the front of the device if the ring seal is
properly applied with the correct size of cutout, the unit has been clamped in place, and the
instructions below are observed.
NOTICE
Control cabinet installation: Material strength at the mounting cut-out
Ensure that the material strength at the mounting cut-out is a minimum of 2 mm and a
maximum of 6 mm. Please follow the specifications for the dimensions in the "Preparing the
mounting cut-out" section.
The degrees of protection are only guaranteed when the following is observed:
• The surface plane deviation of the mounting cut-out in relation to the external
SIMATIC Panel PC 677B
Operating Instructions (Compact), 06/2008, A5E02217246-01
Clamp assembly
mounting cut-out.
dimensions of the control unit amounts to ≤ 0.5 mm when the control unit is mounted.
3.4 Securing the device with clamps
Display
12"
15"
6 x
6 x
The clamps are provided with the control unit.
2.5 mm hexagonal spanner
Installation / panel-mounting
17"
19"
8 x
8 x
13
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