GE AF-650 GP Operating Instructions Manual page 21

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Installation
Standards
Use of safe stop on terminal 37 requires that the user
satisfies all provisions for safety including relevant laws,
regulations and guidelines. The optional safe stop function
complies with the following standards.
EN 954-1: 1996 Category 3
2
2
IEC 60204-1: 2005 category 0 – uncontrolled stop
IEC 61508: 1998 SIL2
IEC 61800-5-2: 2007 – safe torque off (STO)
function
IEC 62061: 2005 SIL CL2
ISO 13849-1: 2006 Category 3 PL d
ISO 14118: 2000 (EN 1037) – prevention of
unexpected start up
The information and instructions of the instruction manual
are not sufficient for a proper and safe use of the safe stop
functionality. The related information and instructions of
the relevant Design Guide must be followed.
Protective Measures
Safety engineering systems may only be installed
and commissioned by qualified and skilled
personnel
The unit must be installed in an IP54 cabinet or
in an equivalent environment
The cable between terminal 37 and the external
safety device must be short circuit protected
according to ISO 13849-2 table D.4
If any external forces influence the motor axis
(e.g. suspended loads), additional measures (e.g.,
a safety holding brake) are required in order to
eliminate hazards
Safe Stop Installation and Set-Up
WARNING
SAFE STOP FUNCTION!
The safe stop function does NOT isolate mains voltage to
the drive or auxiliary circuits. Perform work on electrical
parts of the drive or the motor only after isolating the
mains voltage supply and waiting the length of time
specified under Safety in this manual. Failure to isolate the
mains voltage supply from the unit and waiting the time
specified could result in death or serious injury.
It is not recommended to stop the drive by using
the Safe Torque Off function. If a running drive is
stopped by using the function, the unit will trip
and stop by coasting. If this is not acceptable,
e.g. causes danger, the drive and machinery must
be stopped using the appropriate stopping mode
18
AF-650 GP Operating Instructions
The following requirements have to be meet to perform a
safe installation of the drive:
1.
2.
Illustration 2.14 Jumper between Terminal 12/13 (24V) and 37
before using this function. Depending on the
application a mechanical brake may be required.
Concerning synchronous and permanent magnet
motor frequency converters in case of a multiple
IGBT power semiconductor failure: In spite of the
activation of the Safe torque off function, the
drive system can produce an alignment torque
which maximally rotates the motor shaft by 180/p
degrees. p denotes the pole pair number.
This function is suitable for performing
mechanical work on the drive system or affected
area of a machine only. It does not provide
electrical safety. This function should not be used
as a control for starting and/or stopping the
drive.
Remove the jumper wire between control
terminals 37 and 12 or 13. Cutting or breaking
the jumper is not sufficient to avoid short-
circuiting. (See jumper on Illustration 2.14.)
Connect an external Safety monitoring relay via a
NO safety function (the instruction for the safety
device must be followed) to terminal 37 (safe
stop) and either terminal 12 or 13 (24V DC). The
Safety monitoring relay must comply with
Category 3 (EN 954-1) / PL "d" (ISO 13849-1).

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