1.5 Safety Module rev A.3 (Original
instructions)
The Safety Module provides two drive integrated safety functions according to IEC 61800-5-2:2016 as a
pure hardware solution
1. STO (Safe Torque Off) prevents the creation of torque in the motor and enables an uncontrolled stop
in accordance with stop category 0 of IEC 60204-1.
2. SBC (Safe Brake Control) provides a switchable (PWM) voltage output (0 V - U_bus) to directly safely
control an external motor brake.
Attention
Attention
The Safety module safely inhibts currents to the motor and to a brake when STO-SBC command
The Safety module safely inhibts currents to the motor and to a brake when STO-SBC command
has been given (e.g. from an emergency stop device).
has been given (e.g. from an emergency stop device).
When the command has been released (e.g. manually resetting the emergency stop device) the
When the command has been released (e.g. manually resetting the emergency stop device) the
currents are allowed to be carried to the motor and to the brake.
currents are allowed to be carried to the motor and to the brake.
The safety system must be designed to meet the requirement “restarting the machinery after a
The safety system must be designed to meet the requirement “restarting the machinery after a
stoppage must be possible only by voluntary actuation of a control device provided for the
stoppage must be possible only by voluntary actuation of a control device provided for the
purpose”.
purpose”.
Specifications of the safety functions
Safety connectors
Wiring the safety inputs
Using the safety functions
Examples for realising safety functions
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