• One emergency stop reset button is installed on the cabinet door and wired to the FSO
module. The reset button also includes an emergency stop indication lamp. ABB wires
the button and the indication lamp at the factory. The user can add reset buttons to the
reset circuit.
• The digital output of the FSO module to which the emergency stop indication lamp is
connected, is selected as the output for the Stop completed signal. This is an FSO
module parameter that ABB sets at the factory by default and the user must check at
the start-up.
• The main contactor/breaker is installed inside the cabinet (option +F250 or +F255). The
auxiliary safety relay(s) that control the main contactor/breaker is installed inside the
cabinet and wired to the FSO module. ABB installs and wires the main contactor/breaker
and the auxiliary safety relay(s) at the factory.
• The digital output of the FSO module to which the auxiliary safety relay(s) is connected,
is selected as the output for the Safe brake control (SBC) output signal. This is an FSO
module parameter that ABB sets at the factory by default and the user must check at
the start-up.
Emergency stop, stop category 0:
• The digital inputs of the FSO module to which the emergency stop button is connected,
are selected as the inputs for the STO request. This is an FSO module parameter that
ABB sets at the factory by default and the user must check at the start-up.
Emergency stop, stop category 1:
The user must set these FSO module parameters at start-up:
• The digital inputs of the FSO module to which the emergency stop button is connected,
are selected as the inputs for the SS1 request.
• The SS1 function is set to use either the time monitoring or ramp monitoring mode.
• The stop ramp that is used to decelerate the motor(s) and the monitoring limits (stop
ramp time or ramp monitoring limits) are set according to the application requirements.
Additional wirings and settings when a safety pulse encoder is used:
• The drive is equipped with the FSE-31 pulse encoder interface module (option +L521).
ABB installs the module at the factory.
• The motor must be equipped with a safety pulse encoder. The user installs and wires
the safety pulse encoder to the FSE-31 module. The user must make sure that the
required safety integrity (SIL/PL) can be achieved with the used safety encoder.
Option description 19
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