ABB ACS880 - Page 490

Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
4 ms / real32
(Visible when 92.1 Encoder 1 type = TTL+)
Determines a pulse waiting time used in speed calculation
for the encoder interface. If no pulse edges are detected
within this time, the measured speed is zeroed by the
interface.
Increasing the setting can improve measuring performance
especially at low, near zero speeds.
Note: The parameter is only supported by FEN-xx modules
with FPGA version VIEx 2000 or later. On older modules,
the pulse waiting time is fixed to 4 ms.
Note: The parameter only affects speed measurement.
Position is updated whenever a new pulse edge is
detected. When the measured speed from the interface is
zero, the drive updates its speed data based on position
changes.
Maximum pulse
waiting time
92.23
1 = 1 ms / 1 = 1 msMaximum pulse waiting time.1...200 ms
4 ms / real32
(Visible when 92.1 Encoder 1 type = HTL 1)
Determines a pulse waiting time used in speed calculation
for the encoder interface. If no pulse edges are detected
within this time, the measured speed is zeroed by the
interface.
Increasing the setting can improve measuring performance
especially at low, near zero speeds.
Note: The parameter is only supported by FEN-xx modules
with FPGA version VIEx 2000 or later. On older modules,
the pulse waiting time is fixed to 4 ms.
Note: The parameter only affects speed measurement.
Position is updated whenever a new pulse edge is
detected. When the measured speed from the interface is
zero, the drive updates its speed data based on position
changes.
Maximum pulse
waiting time
92.23
1 = 1 ms / 1 = 1 msMaximum pulse waiting time.1...200 ms
No filtering / uint16
(Visible when 92.1 Encoder 1 type = HTL)
Enables pulse edge filtering. Pulse edge filtering can
improve the reliability of measurements especially from
encoders with a single-ended connection.
Note: Pulse edge filtering is only supported by FEN-31
modules with FPGA version VIE3 2200 or later.
Note: Pulse edge filtering decreases the maximum pulse
frequency. With 2 µs filtering time, the maximum pulse
frequency is 200 kHz.
Pulse edge filtering92.24
0Filtering disabled.No filtering
1Filtering time: 1 microsecond.1 µs
2Filtering time: 2 microseconds.2 µs
Fault / uint16
(Visible when 92.1 Encoder 1 type = HTL)
Selects how the drive reacts when the encoder interface
detects a pulse overfrequency condition.
Note: This parameter is effective only with FEN-xx module
FPGA version VIEx 2200 or later.
Pulse overfrequency
function
92.25
490 Parameters