01/02 AWB8230-1415GB
Programmable digital inputs
1to8
81
Change over vector parameters (CAS)
Activating the digital input configured as CAS causes a change-
over between the PI control parameters. PI control regulates the
speed and is available only in vector control mode (PNU A044)
(a Section “Voltage/frequency characteristic and voltage
boost“, Page 126):
• SLV control
• 0 Hz SLV control
• Vector control with optional DE6-IOM-ENC module
When the CAS input is inactive or no digital input is configured as
CAS, the following paramaters apply:
• PNU H050 (H250),
• PNU H051 (H251),
• PNU H052 (H252).
When the CAS input is active, the following parameters apply:
• PNU H070,
• PNU H071,
• PNU H072.
X To activate vector control, enter one of the following values
under PNU A044 (a Section “Voltage/frequency charac-
teristic and voltage boost“, Page 126).
– 03: SLV control
– 04: 0 Hz SLV control
– 05: Vector control with optional DE6-IOM-ENC module.
X Program one of the digital inputs 1 to 8 as CAS by setting the
corresponding PNU (C001 to C008) to 26.
Figure 72: Digital input 1 configured as REV (start/stop anticlockwise
operation) and 2 as CAS (change over vector parameters).
CAS
REV
P24FW12
CAS PNU Active
H050 (H250) j
H051 (H251) j
H052 (H251) j
H070 –
H071 –
H072 –
H050 (H250) –
H051 (H251) –
H052 (H251) –
H070 j
H071 j
H072 j
CAS
P242
CAS
P242
PNU Name Adjustable in RUN mode Value Function WE
Normal Extended
A044
A244
A344
Voltage/frequency
characteristic
– – 00 V/f characteristic, linear 00
01 V/f characteristic, quadratic, for example fans
02 User-definable
03 Sensorless vector control (SLV)
1)
04 0 Hz SLV control
1)
05 Vector control
1)
with optional DE6-IOM-ENC module
H005 Motor constants
j j 0.001 to 65.53 Gain Kp 1.590
H050 PI proportional gain
j j 0.00 to 1000 % P component of he PI control in vector control mode 100.0
H051 PI Integration gain
j j 0.00 to 1000 % I component of he PI control in vector control mode 100.0
H052 P proportional gain
j j 0.01 to 10.00 P component of he P control in vector control mode 1.00
H070 PI proportional gain j j 0.00 to 1000 % P component of he PI control in vector control mode 100.0
H071 PI Integration gain
j j 0.00 to 1000 % I component of he PI control in vector control mode 100.0
H072 P proportional gain
j j 0.01 to 10.00 P component of the P control in vector control mode 1.00
1) If SLV control is active, you should set the pulse frequency to at least 2.1 kHz with PNU b083 (a Section “Pulse frequency“, Page 164).
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