120 Program features
Power limit
Power limitation is used to protect the input bridge and the DC intermediate circuit.
If the maximum allowed power is exceeded, the drive torque is automatically limited.
Maximum overload and continuous power limits depend on the drive hardware.
For specific values, see chapter Technical data on page 383.
Automatic resets
The drive can automatically reset itself after overcurrent, overvoltage, undervoltage,
external and “analog input below a minimum” faults. The Automatic Resets must be
activated by the user.
Settings
Diagnostics
Supervisions
The drive monitors whether certain user selectable variables are within the
user-defined limits. The user may set limits for speed, current etc. The supervision
status can be indicated through relay or digital output.
The supervision function outputs can be used for triggering some drive functionality
(start/stop, sleep, pump cleaning).
The supervision functions operate on a 2 ms time level.
Settings
Parameter group Group 32: Supervision
Diagnostics
Parameter Additional information
Group 31: Automatic reset Automatic reset settings
Alarm Additional information
AUTORESET Automatic reset alarm
Actual signal Additional information
1001/1002 EXT1/EXT2 start/stop according to supervision functions
1401 Supervision status through RO 1
1402/1403/1410 Supervision status through RO 2…4. With option
MREL-01 only.
1805 Supervision status through DO
4022/4122 Sleep start according to supervision functions
4601 Pump clean trigger according to supervision functions
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