Configuring; Configuration Information - Siemens 3TK2810-1 System Manual

Safety relays, safety-related speed monitor, industrial controls

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Operation

6.3 Configuring

6.3

Configuring

6.3.1

Mounting measuring sensors

Cross-circuits between the measuring sensors must be avoided by means of suitable cable

installation.

Transmission ratio or shaft fracture monitoring

In certain applications, it can be necessary to set a transmission ratio. The following

arrangement of the initiators or the encoder is necessary here:

● The speed to be monitored on the encoder or on initiator 1 (E1) must always be greater

than or equal to the speed to be monitored on initiator 2 (E2).

● The set speed limits on the display always refer to the encoder or to initiator 1 (E1) when

a transmission ratio is set.

● If the gear unit switched between E1 and E2 does not have an integer ratio, it can be

adjusted appropriately by modifying the resolution settings E1/E2 (pulses/rev. or mm).

This arrangement is also used to detect a shaft fracture. If the measuring signals of the

measuring sensor do not agree with the measuring sensor on the shaft in accordance with

the ratio, the device switches immediately to a safe fault state.

3TK2810-1 safety-related speed monitor

System Manual, 01/2011, 926246402000 DS 02

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