Program features
43
Overfrequency
If the drive output frequency exceeds the preset level, the drive is stopped and a
fault indication is given. The preset level is 50 Hz over the operating range absolute
maximum speed limit (Direct Torque Control mode active) or frequency limit (Scalar
Control active).
Internal fault
If the drive detects an internal fault the drive is stopped and a fault indication is
given.
Operation limits
ACS800 has adjustable limits for speed, current (maximum), torque (maximum) and
DC voltage.
Settings
Parameter group 20 LIMITS.
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 hardware. For
specific values refer to the appropriate hardware manual.
Supervisions
The drive monitors whether certain user selectable variables are within the user-
defined limits. The user may set limits for speed, current etc.
Settings
Parameter group 32 SUPERVISION.
Diagnostics
Parameter lock
The user can prevent parameter adjustment by activating the parameter lock.
Settings
Parameters 16.02 and 16.03.
Actual Signals Additional Information
02.28 Bits in a packed boolean word
Group 14 RELAY OUTPUTS Indication through a relay output
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