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3.12.1 Safe Stop Installation - AutomationDrive FC 302 only (and AutomationDrive FC 301
in Frame Size A1)
To carry out an installation of a Category 0 Stop (EN60204) in
conformance with Safety Cat. 3 (EN 954-1) / PL “d” (ISO
13849-1), follow these instructions:
1.
The bridge (jumper) between Terminal 37 and 24 V DC must be
removed. Cutting or breaking the jumper is not sufficient. Re-
move it entirely to avoid short-circuiting. See jumper on figure.
2.
Connect terminal 37 to 24 V DC by a short circuit-protected ca-
ble. The 24 V DC voltage supply must be interruptible by a Cat.
3 (EN 954-1) / PL “d” (ISO 13849-1) circuit interrupt device. If
the interrupt device and the adjustable frequency drive are
placed in the same installation panel, you can use a regular cable
instead of a protected one.
3.
The safe stop function only fulfills Cat. 3 (EN 954-1) / PL “d”
(ISO 13849-1) if particular protection against, or avoidance of,
conductive contamination is provided. Such a protection is ach-
ieved by using AutomationDrive FC 302 with protection class
IP54 or higher. If AutomationDrive FC 302 with lower protection
(or AutomationDrive FC 301 A1, which is only delivered with an
IP21 enclosure) are used, then an operating environment cor-
responding to the inside of an IP54 encapsulation must be en-
sured. If there is a risk of conductive contamination in the op-
erating environment, an obvious solution,would be to mount the
devices in a cabinet that provides IP54 protection.
Figure 3.8: Bridge jumper between terminal 37 and 24 VDC
The figure below shows a Stopping Category 0 (EN 60204-1) with Safety Cat. 3 (EN 954-1) / PL “d” (ISO 13849-1). The circuit interrupt is caused by an
opening door contact. The figure also shows how to connect a non-safety related hardware coast.
Figure 3.9: Figure of the essential aspects of an installation to achieve a Stopping Category 0 (EN 60204-1) with Safety Cat. 3 (EN 954-1) /
PL “d” (ISO 13849-1).
FC 300 Design Guide
3 Introduction to AutomationDrive FC 300
MG.33.BC.22 - VLT
®
is a registered Danfoss trademark
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