Lenze 8400 User Manual

17 Function library
17.1 Function blocks | L_OffsetGain_1
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Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23
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17.1.120 L_OffsetGain_1
This FB can add an offset to an analog input signal and then amplify it. Preferably to be
interconnected directly after the analog input terminals.
• The internal calculations (addition and subtraction) are carried out with 32 bits without
overflow/underflow. Division is not remainder considered.
• Offset and gain are selected via FB inputs.
• The value provided at the nOut_a output is internally limited to ±199.99 %.
Inputs
Outputs
Function
Designator
Data type
Information/possible settings
nIn_a
INT
Input signal
• Scaling: 16384 ≡ 100 %
nOffset_a
INT
Offset
• Scaling: 16384 ≡ 100 %
nGain_a
INT
Gain factor
• Scaling: 16384 ≡ 100 %
• 199.99 % ≈2
Designator
Data type
Value/meaning
nOut_a
INT
Output signal
• Internal limitation to ±199.99 %
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nOut_a nIn_a Offset+()Gain factor⋅=

Lenze 8400 Specifications

General

Category	DC Drives
Series	8400
Protection class	IP20
Control Type	Vector control
Communication	CANopen, PROFIBUS, Ethernet
Protection Features	Overcurrent, overvoltage, undervoltage, overtemperature
Input Voltage	AC 230/400/480 V