Fault Detection/Fault Reset; Fault Detection; Se4 Fault Reset; Brake Feedback - YASKAWA L1000A CIMR-LC F Series Technical Manual Addendum

Feedback function is just monitoring the brake operation and issues a fault if the brakes' status does not match the
brake command.
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Deactivation
To deactivate the Brake Response Monitor (BRM) function, perform the following steps:
• Set S6-17 = 0.
The function is disabled.
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Fault Detection/Fault Reset

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Fault Detection

If during the start or stop process Brake Feedback 1 and/or Brake Feedback 2 do not change their logic state
within the time limit specified in S6-05 [Brake Response Error (SE4) Detection Time], an SE4 fault will be
triggered and the drive will be locked.
If during Run Brake Feedback 1 or Brake Feedback 2 change their logic state for a time longer than S6-06 [Brake
Response Error (SE4) Detection Time During Run], an SE4 fault will be triggered and the drive will be locked.
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SE4 Fault Reset

With the Brake Response Monitor function enabled [S6-17 = 1], an SE4 fault cannot be reset by:
• Using the Reset button
• Power cycling the drive or installation
• Using the Automatic Fault Reset function [L5-xx]
The SE4 fault can be reset only by setting parameter S6-18 = 1.
With the Brake Response Monitor (BRM) function disabled [S6-17 = 0], an SE4 fault can be reset using the
standard procedure.
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Brake Feedback

Standard Behavior of Brake Feedback
After the Brake Release Command is set (brake open) during start procedure, the drive starts a timer with the
value set in parameter S6-05. If Brake Feedback function 79h is selected, both of the Brake Feedback Inputs must
be set within the time set in S6-05. If Brake Feedback function 5Bh is selected, they must be reset within the time
set in S6-05.
After the Brake Release Command is reset (brakes closed) during stop procedure, the drive starts a timer with the
value set in parameter S6-05. If Brake Feedback function 79h is selected, both of the Brake Feedback Inputs must
be set within the time set in S6-05. If Brake Feedback function 5Bh is selected, they must be reset within the time
set in S6-05.
YASKAWA TOEPC710616134G AC Drive L1000A Technical Manual Addendum
2 Brake Monitoring (Unintended Car Movement)
EN
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