Elettronica Santerno SINUS/ISD 200 S-0.75, User Manual, Page: 96 / 206

15P0082B8
USER MANUAL
SINUS/ISD
6 - 40/82
6.4.1.24 MINIMUM SPEED
The minimum speed block is used to
determine how the inverter will follow a
reference. There are two modes
1.
Proportional : minimum limit
2. Linear : between min and max.
Functional Description
There are two operating modes for the MINIMUM SPEED block:
Proportional with Minimum
In this mode the MINIMUM SPEED block behaves like a simple clamp. The
minimum value has the valid range -100% to 100% and the output is always
greater than or equal to the minimum value.
Linear
In this mode the MINIMUM SPEED block first clamps the input to
zero then rescales the input such that the output goes linearly
between minimum and 100% for an input that goes from 0 to
100%.
Note the constraints:-
min >= 0
input >= 0
max = 100%
MMI Menu Map
1
SETUP PARAMETERS
2
FUNCTION BLOCKS
3
SETPOINT FUNCS
4
MINIMUM SPEED
MIN SPEED INPUT
MIN SPEED
MIN SPEED MODE
MIN SPEED OUTPUT
Parameter Descriptions Parameter Descriptions
INPUT INPUT Range: -300.00 to 300.00 %
The input for this block.
MINIMUM
MINIMUM Range: -100.00 to 100.00 %
This parameter determines the minimum output value from this block
MODE
MODE
Range: Enumerated - see below
This parameter represents the operating mode of the block. There are two modes:
Enumerated Value : Operating Mode
0 : PROP. W/MIN.
1 : LINEAR
OUTPUT OUTPUT Range: xxx.xx %
The output is determined by the MODE selected, see below.
MINIMUM SPEED MINIMUM SPEED
OUTPUT [335] –– 0.00 %
0.00 % – [336] INPUT ––
-100.00
% –– [337] MINIMUM ––
PROP. W/MIN. –– [338] MODE ––
Min
0 100%
100
-100
input
output
100
Min
0 100%
output
input
200%
max = 300.00% – (2 x min)