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Rockwell Automation Publication 35-UM001A-EN-P - May 2022
175
Chapter 7 Configure the Armor PowerFlex Drive
Configure Safe Brake Control (SBC)
From the Safety Configuration menu, choose Safe Brake Control (SBC).
SBC is configured when Safe Brake Control functionality is desired in an
application.
The default mode for SBC is ‘Not Used’. If the SBC functionality is desired,
setting the mode to ‘Used’, ‘Test Pulses’, or setting the mode to ‘Used, No Test
Pulses’, will enable the SBC function. When configured for ‘Used, Test Pulses
mode’, pulse testing of the physical brake outputs are performed. For more
information on the drive-based SBC function, see
for descriptions of the SBC attributes.
Table 68 - SBC Attributes
Attribute
Description
STO Activates SBC
Determines if an STO event engages the brake. If set to ‘Not Linked’, an STO event does not
engage the brake. If set to ‘Linked’, the brake is engaged during an STO event based on the
‘STO to SBC Delay’ attribute. This attribute is only valid when the ‘Mode’ is set to one of the
two ‘Used’ options.
STO to SBC Delay
The delay of brake engagement in milliseconds. If the value is a positive number, the delay
specifies the time between when STO is activated and the brake is engaged. If the value is a
negative number, the brake is engaged immediately after STO is activated, and the delay
specifies the time between STO activation and when torque is actually disabled. This attribute
is only valid when ‘STO Activates SBC’ is set to’ Linked’.