ABB ACS 800 Series, Инструкция по применению

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Function blocks
24
Operation The output is true if any of the inputs is true. Truth table:
Connections Input I1, I2 and I3: Boolean values
Output (O): 24 bit integer value (packed boolean)
PI
Type PI controller
Illustration
Operation The output is input I1 multiplied by I2/100 plus integrated I1 multiplied by I3/100.
O = I1· I2/100+(I3/100) · I1
Note: The internal calculation uses 48 bits accuracy to avoid offset errors.
Connections Inputs I1: 24 bit integer value (23 bit + sign)
Input I2:
- 24 bit integer value (23 bit + sign)
- Gain factor. 100 corresponds to 1. 10 000 corresponds to 100.
Input I3:
- Integrator coefficient. 100 corresponds to 1. 10 000 corresponds to 100.
Output (O): 24 bit integer (23 bits + sign). The range is limited to 0…10000.
PI-BAL
Type Initialisation block for the PI controller
Illustration
Operation The block initialises the PI block first. When input I1 becomes true, the block writes
the value of I2 to the output of the PI block. When I1 becomes false, the block
releases the output of the PI controller block which continues normal operation from
the set output.
Note: The block may be used only with the PI block. The block must follow the
PI block.
Connections Input I1: Boolean value
Input I2: 24 bit integer value (23 bits + sign)
I1 I2 I3 O (binary) O (value on display)
0 0 0 False (All bits 0) 0
0 0 1 True (All bits 1) -1
0 1 0 True (All bits 1) -1
0 1 1 True (All bits 1) -1
1 0 0 True (All bits 1) -1
1 1 0 True (All bits 1) -1
1 1 1 True (All bits 1) -1
I1
I2
I3
PI
O
I1
I2
PI-BAL