Safety
Information
Introduction
Product
information
System
design
Mechanical
installation
Electrical
installation
Getting
started
Optimisation
Parameters
Technical
data
Component
sizing
Diagnostics
Unidrive SP Regen Installation Guide
129
Issue Number: 2 www.controltechniques.com
If an analogue input is used with 4-20mA or 20-4mA current loop modes the respective bit (Pr
7.28
- analogue input 2 and Pr
7.29
-3) is set to one if
the current falls below 3mA. If the current is above 3mA with these modes or another mode is selected the respective bit is set to zero.
An offset can be added to each analogue input with a range from -100% to 100%. If the sum of the input and the offset exceeds ±100% the results is
limited to ±100%.
This offers a simple control of Pr
7.19
to change the source for the analogue output for use from Menu 0. When this parameter is set to 0 or 1 the
drive constantly writes Pr
5.01
or Pr
4.02
to Pr
7.19
respectively.
The IGBT junction temperature is calculated using Stack 1 temperature (Pr
7.04
) and a thermal model of the drive power stage. The resulting
temperature is displayed in this parameter. The calculated IGBT junction temperature is used to modify the drive switching frequency to reduce losses
if the devices become too hot (see Pr
7.28
T5/6 analogue input 1 current loop loss
7.29
T7 analogue input 2 current loop loss
Drive mode
Regen
Coding
Bit
SP
FI
DE Txt VM DP ND RA NC NV
PT
US RW BU
PS
1
1
1
1
Update rate
Background
7.30
T5/6 analogue input 1 offset
Drive mode
Regen
Coding
Bit
SP
FI
DE Txt VM DP ND RA NC NV
PT
US RW BU
PS
2
1
1
Range
Regen
±100.00 %
Default
Regen
0.00
Update rate
Background
7.31
T7 analogue input 2 offset
7.32
T8 analogue input 3 offset
Drive mode
Regen
Coding
Bit
SP FI
DE Txt VM DP ND
RA NC NV PT
US RW BU PS
1
1
1
Range
Regen
±100.0 %
Default
Regen
0.0
Update rate
Background
7.33
T9 analogue output 1 control
Drive mode
Regen
Coding
Bit
SP
FI
DE Txt VM DP
ND
RA NC NV PT US RW BU PS
1
1
1
1
Range
Regen
0 to 2
Default
Regen
2
Update rate
Background
Parameter value
Parameter string
Action
0
Fr
Write Pr
7.19
= Pr
5.01
1
Ld
Write Pr
7.19
= Pr
4.02
2
AdV
No action
7.34
IGBT junction temperature
Drive mode
Regen
Coding
Bit
SP
FI
DE Txt VM DP
ND
RA NC NV PT US RW BU PS
1
1
1
Range
Regen
±200 °C
Update rate
Background
Summary of Contents for SP1201
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