Siemens SINUMERIK 840D sl Function Manual page 716

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11.3 Safety messages for SINAMICS S120

SI Motion P1 (CU): Safely-Limited Speed limit value too high

IMMEDIATELY (POWER ON)

The limit value for the function "Safely-Limited Speed" (SLS) is greater than the speed that corresponds to

an encoder limit frequency of 500 kHz.

This fault does not result in a safety stop response.

Fault value (r0949, interpret decimal):

Maximum permissible speed

Correct the limit values for SLS and carry out a POWER ON.

SI Motion: Cam position parameterization not permissible

IMMEDIATELY (POWER ON)

At least one enabled "Safe Cam" (SCA) is parameterized in p9536 or p9537 too close to the tolerance range

around the modulo position.

The following conditions must be maintained to assign cams to a cam track:

● The cam length of cam x = p9536[x]-p9537[x] must be greater than or equal to the cam tolerance + the

position tolerance (= p9540 + p9542). This means that for cams on a cam track, the minus position value

must be less than the plus position value.

● The distance between 2 cams x and y (minus position value[y] - plus position value[x] = p9537[y] -

p9536[x]) on a cam track must be greater than or equal to the cam tolerance + the position tolerance (=

p9540 + p9542).

This fault does not result in a safety stop response.

Fault value (r0949, interpret decimal):

Number of the "Safe Cam" with an illegal position.

See also: p9501 (SI Motion enable safety functions (Control Unit))

Correct the cam position and carry out a POWER ON.

SI Motion: Illegal parameterization of modulo value SCA (SN)

IMMEDIATELY (POWER ON)

The parameterized modulo value for the function "Safe Cams" (SCA) is not a multiple of 360 000 mDegree.

This fault does not result in a safety stop response.

Correct the modulo value for SCA and carry out a POWER ON.

Function Manual, 12/2017, 6FC5397-4BP40-6BA1

Safety Integrated