Sbt Warning 4; Sbt Warning 5; Sbt Warning 6; Plc Safety Stop Is Active - Mitsubishi Electric M800 Series Manual

M800/M80/E80/C80 Series Alarm/Parameter Manual
13 Smart Safety Observation Alarm (V)
V51

SBT warning 4

Details
The axis movement amount exceeded the tolerable value in the test pattern 1 of motor brake test.
Displays the name of axis with the error.
Remedy
Move the axis to safe position by manual operation. Take corrective action to the brake after the power
OFF. Then turn power ON and carry out the brake test again. This alarm will be cancelled when the test
completes normally.
This alarm can be cancelled with the safety reset signal. The external brake SBT incomplete signal (SBT-
NFEXm), however, remains ON.
When this alarm is cancelled with the safety reset signal, however, the motor brake SBT incomplete signal
(SBTNFMOm) remains ON.
V51

SBT warning 5

Details
The axis movement amount exceeded the tolerable value in the test pattern 2 of motor brake test.
Displays the name of axis with the error.
Remedy
Move the axis to safe position by manual operation. Take corrective action to the brake after the power
OFF. Then turn power ON and carry out the brake test again. This alarm will be cancelled when the test
completes normally.
This alarm can be cancelled with the safety reset signal. The external brake SBT incomplete signal (SBT-
NFEXm), however, remains ON.
When this alarm is cancelled with the safety reset signal, however, the motor brake SBT incomplete signal
(SBTNFMOm) remains ON.
V51

SBT warning 6

Details
The axis movement amount exceeded the tolerable value in the test pattern 3 of motor brake test.
Displays the name of axis with the error.
Remedy
Move the axis to safe position by manual operation. Take corrective action to the brake after the power
OFF. Then turn power ON and carry out the brake test again. This alarm will be cancelled when the test
completes normally.
This alarm can be cancelled with the safety reset signal. The external brake SBT incomplete signal (SBT-
NFEXm), however, remains ON.
When this alarm is cancelled with the safety reset signal, however, the motor brake SBT incomplete signal
(SBTNFMOm) remains ON.
V52

PLC safety stop is active

Details
A PLC input signal "Safe stop 1 request" or "Safe torque off request" is OFF (normal close).
The screen displays the name of axis for which the said signal is OFF.
Remedy
Ensure the safety of the machine, and then turn ON either Safe stop 1 request signal or Safe torque off
request signal.
0005
0006
0007
0001
173
Axis name
Axis name
Axis name
Axis name
IB-1501279-H