GE AF-650 GP Design Manual page 50

3.12.1 Safe Stop Installation
To carry out an installation of a Category 0 Stop (EN60204) in conform-
ance 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 re-
moved. Cutting or breaking the jumper is not sufficient. Remove it
entirely to avoid short-circuiting. See jumper on illustration.
2. Connect terminal 37 to 24 V DC by a short-circuit protected cable.
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 instal-
lation 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, conduc-
tive contamination is provided. Such a protection is achieved by
using AF-650 GP with protection class IP54 or higher. If AF-650 GP
with lower protection 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 3.7: 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).
Activation and Termination of Safe Stop
The Safe Stop function is activated by removing the voltage at Terminal 37 of the Safe Inverter. By connecting the Safe Inverter to external safety devices providing
a safe relay, an installation for a safe Stop Category 1 can be obtained. The Safe Stop function of AF-650 GP can be used for asynchronous and synchronous
motors.
Safe Stop activation (i.e. removal of 24 V DC voltage supply to terminal 37) does not provide electrical safety.
Illustration 3.6: Bridge jumper between terminal 37 and 24 VDC
AF-650 GP Design Guide
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