Danfoss FC 300 Design Manual page 54

3 Introduction to AutomationDrive FC 300
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-
3
move it entirely to avoid short-circuiting. See jumper on illus-
tration.
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 frequency converter 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
achieved 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
ensured. An obvious solution, if there is a risk of conductive
contamination in the operating environment, would be to mount
the devices in a cabinet that provides IP54 protection.
The illustration 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 illustration also shows how to connect a non-safety related hardware coast.
Illustration 3.9: Illustration 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).
54
Illustration 3.8: Bridge jumper between terminal 37 and 24
VDC
MG.33.BC.02 - VLT ® is a registered Danfoss trademark
FC 300 Design Guide