# Basic Conditions

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#### **Motor types**

Functional Safety with SMU can be used for all LINAX®, ELAX® and ROTAX® motor families, as well as rotary brushless motors with different A/B/Z encoder signals. Rotary brush type DC motors are not subject to the functional safety.

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Note 1:

For vertical mounted linear axis, weight compensation must be used for safety functions SS2 and SLS. The safety function SBC (Safe Break Control) is not available.
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Note 2:

Rotative motors operating suspended loads are excluded from SS2 and SLS safety functions.
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#### Commissioning

The configuration assessment has to be warranted by the client for each modification of the functional safety and its parameters through commissioning.
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#### **Period of use**

The maximum period of use for operating with functional safety with SMU is 20 years.
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#### Continuous operation

The XENAX® servo controller must be switched off at least once a year.
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#### **Wiring**

The length of the connection cables must not exceed 30m per connection cable.
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