ADV200 • Functions description and parameters list 27
B) Decrease in the reference by values above Par. 630
Par.630 = 300 rpm (prohibited speed threshold)
Par.632 = 10 rpm (thus tolerance band: 290 rpm…310 rpm)
Set speed reference = 305 rpm
Output frequency = 310 rpm
Set speed reference = 295 rpm
Output frequency = 310 rpm
The user can thus set any reference value, but if the set value is within the prohibited range, the drive automati-
cally maintains the speed outside the limits dened by the tolerance band.
During ramp phases the prohibited speed is passed freely and there are no points of discontinuity in the gen-
eration of the output frequency.
The speed reference supplies the desired speed to the drive, which directly follows the reference pattern. This
only happens when the available torque is sufcient. In this case the drive functions at its current limit, until
reaching the set speed. The speed reference value determines the motor speed value. The sign determines the
direction of rotation.
Menu PAR Description UM Type FB BIT Def Min Max Acc Mod
5.15 640 Digspeedref1 FF INT16 16/32 0 CALCI CALCI ERW FVS
5.16 642 Digspeedref2 FF INT16 16/32 0 CALCI CALCI ERW FVS
Setting of the digital speed references. The overall speed reference is the result of the sum of the values with
the respective signs, of Digspeedref1 and Digspeedref2. The digital speed references are linked to the
ramp circuit output.
The overall speed reference is the result of the sum of the values, with sign, of Speedref1 and Speedref2.
Example 1: Speedref1 = + 500 rpm Speedref2 = + 300 rpm
Speedref = 500 rpm + 300 rpm = 800 rpm
Example 2: Speedref1 = + 400 rpm Speedref2 = - 600 rpm
Speedref= 400 rpm – 600 rpm = - 200 rpm
Menu PAR Description UM Type FB BIT Def Min Max Acc Mod
5.17 650 Speedref1src LINK 16/32 640 0 16384 ERW FVS
5.18 652 Speedref2src LINK 16/32 642 0 16384 ERW FVS
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