Smart Safety Observation Warning (V50/V51/V52/V53/V54); Ssm Hysteresis Setting Error; Safe Absol. Posn Unestablished; Sbt Start Disabled - Mitsubishi Electric M800 Series Manual

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

13.2 Smart Safety Observation Warning (V50/V51/V52/V53/V54)

V50

SSM hysteresis setting error

Details
The SSM hysteresis width (set by parameter) is greater than the SSM speed (set by parameter).
The screen displays the name of axis of this error.
Remedy
Change the SSM hysteresis width parameter to be a smaller value than the SSM speed.
V50

Safe absol. posn unestablished

Details
After enabling SLP/SCA (Parameter SLP_Enable/SCA_Enable is 1), the Safety absolute position has nev-
er been established.
In SLP/SCA encoder diagnosis during power OFF, [saved position at power shut OFF] and [restored po-
sition at power ON] are inconsistent.
While this alarm is ON, SLP/SCA will not operate. Displays the name of axis of this error.
Remedy
This alarm can be cancelled by turning ON the Safety absolute position check signal. Before turning ON
the Safety absolute position check signal, however, move the axis by manual operation to the position
where the coordinate value is clear (the position that is marked or the reference position etc.) (When in the
relative position detection system, it requires to operate reference position return to establish the reference
position.) then compare the actual position and the displayed position to confirm the both position is corre-
sponding.
V51

SBT start disabled

Details
When turning ON the SBT start signal (SBTSTEXm / SBTSTMOm), the test start condition are not met.
Displays the factor why the brake test start is impossible
* When there are multiple factors, the smaller item is shown.
0001: part systems in automatic operation
0002: not in in-position
0003: in servo OFF state.
0004: in current limit
0005: the secondary axis in the synchronous control
0006: in superimposition control
0007: in arbitrary axis exchange control
0008: in mixed control
0009: Parameter for SBT error
000A: reference position establishment incomplete
000B: applies exclusive control of SBT
000C: the secondary axis SBT disabled
000D: the secondary axis SBT start disabled
000E: the secondary axis in single method
Remedy
Check the start-enabled condition of the brake test. Eliminate the cause of the alarm, then enable the SBT
start signal to start the brake test.
V51 SBT warning 1
Details
The axis movement amount exceeded the tolerable value in external brake test pattern 1.
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.
IB-1501279-H
0001
0002
0001
0002
172
Axis name
Axis name
Factor No.
Axis name