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ADV100 • Functions description and parameters list 23

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 automatically

maintains the speed outside the limits dened by the tolerance band.

During ramp phases the prohibited speed is passed freely and there are no points of discontinuity in the generation

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 sufcient. 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 rota-

tion.

Menu PAR Description UM Type FB BIT Def Min Max Acc Mod

5.15 640 Digspeedref1 rpm INT16 16/32 0 CALCI CALCI ERW FVS

5.16 642 Digspeedref2 rpm 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 Digspeedref1 and Digspeedref2. 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 Speedref1 and Speedref2.

Example 1: Speedref1 = + 500 rpm Speedref2 = + 300 rpm

Speedref = 500 rpm + 300 rpm = 800 rpm

Example 2: Speedref1 = + 400 rpm Speedref2 = - 600 rpm

Speedref= 400 rpm – 600 rpm = - 200 rpm

Menu PAR Description UM Type FB BIT Def Min Max Acc Mod

5.17 650 Speedref1src LINK 16/32 640 0 16384 ERW FVS

5.18 652 Speedref2src LINK 16/32 642 0 16384 ERW FVS

Selection of the origin (source) of the drive speed reference signals. The values that can be used as speed refer-

ences can be selected from those listed in the “L_MLTREF” selection list.

gefran SIEIDrive ADV100 User Manual

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