Overfrequency; Internal Fault; Operation Limits; Settings - ABB ACS800 Series Firmware Manual

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

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

Diagnostics

Actual Signals
02.28
Group

Parameter lock

The user can prevent parameter adjustment by activating the parameter lock.
Settings
Parameters
20 LIMITS.
32 SUPERVISION.
14 RELAY OUTPUTS
16.02 and 16.03.
Additional Information
Bits in a packed boolean word
Indication through a relay output
43
Program features