Actual signals and parameters
68
13 ANALOG INPUTS
Analog input signal minimum
1301 MINIMUM AI1 Defines the minimum % value that corresponds to minimum mA/(V) signal for
analog input AI1.
0...20 mA 0...100%
4...20 mA 20...100%
When analog input AI1 is selected as the source for external reference
REF1, the value corresponds to the minimum reference value, i.e. 0 Hz. See
the figure for parameter 1105 REF1 MAX.
0%
0…100.0% Value in percent of the full signal range. Example: If the minimum value for
analog input is 4 mA, the percent value for 0…20 mA range is:
(4 mA / 20 mA) · 100% = 20%
20 LIMITS
Maximum frequency
2008 MAXIMUM FREQ Defines the maximum limit for the drive output frequency. Eur: 50 /
US: 60
0.0…500.0 Hz Maximum frequency
21 START/STOP
Stop mode of the motor
2102 STOP FUNCTION Selects the motor stop function. 1 = COAST
1 = COAST Stop by cutting off the motor power supply. The motor coasts to a stop.
2 = RAMP Stop along a linear ramp. See parameter group 22 ACCEL/DECEL.
22 ACCEL/DECEL
Acceleration and deceleration times
2202 ACCELER TIME 1 Defines the acceleration time 1 i.e. the time required for the speed to change
from zero to the speed defined by parameter 2008 MAXIMUM FREQ.
- If the speed reference increases faster than the set acceleration rate, the
motor speed will follow the acceleration rate.
- If the speed reference increases slower than the set acceleration rate, the
motor speed will follow the reference signal.
- If the acceleration time is set too short, the drive will automatically prolong
the acceleration in order not to exceed the drive operating limits.
5
0.0…1800.0 s Time
Parameters in the Short Parameter mode
No. Name/Value Description Def
=
=
-(2008)
2008
Allowed frequency range
f
t
0
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