Menu 7 − Analog I/O

 


Drive thermal monitoring

 


Parameter07.001  Analogue Input 1
Short descriptionDisplays the value of analog input 1
Minimum-100.00Maximum100.00
Default Units%
Type16 Bit VolatileUpdate Rate4ms
Display FormatStandardDecimal Places2
CodingRO, FI, ND, NC, PT

The Analog input 1 can operate in different modes as defined by Analogue Input 1 Mode (07.007) including current modes. See Analog I/O.

Voltage mode: Resolution of 11 bits. It is a single ended unipolar voltage input 0V-10V

Current mode: Resolution of 11 bits. It is a single ended unipolar 0-20mA

The "Input Level" is defined for the different modes in the table below.

Mode Input Level
Voltage (Input Voltage/ 10V) x 100.00%
0-20mA (Input Current / 20mA) x 100.00%
20-0mA (20mA - Input Current) / 20mA x 100.00%
4-20mA (Input Current - 4mA) / 16mA x 100.00%
20-4mA

(20mA - Input Current) / 16mA x 100.00%


Parameter07.004  Stack Temperature
Short descriptionDisplays the temperature currently being measured on the heat sink
Minimum-250Maximum250
Default Units°C
Type16 Bit VolatileUpdate RateBackground write
Display FormatStandardDecimal Places0
CodingRO, ND, NC, PT

This parameter displays the temperature currently being measured on the heat sink. This is used as part of the drive thermal model, see Drive Over-temperature Alarm (10.018) for further details.


Parameter07.005  Auxiliary Temperature
Short descriptionDisplays the temperature currently being measured on the power system
Minimum-250Maximum250
Default Units°C
Type16 Bit VolatileUpdate RateBackground write
Display FormatStandardDecimal Places0
CodingRO, ND, NC, PT

This parameter displays the temperature currently being measured on the power system on large frame. This is used as part of the drive thermal model.


Parameter07.007  Analogue Input 1 Mode
Short descriptionDefines the mode of analog input 1
Minimum-6Maximum6
Default6Units 
Type8 Bit User SaveUpdate RateBackground read
Display FormatStandardDecimal Places0
CodingRW, TE

ValueText
‑64-20.S
‑520-4.S
‑44-20.L
‑320-4.L
‑24-20.H
‑120-4.H
00-20
120-0
24-20.tr
320-4.tr
44-20
520-4
6Volt

See Analogue Input 1 (07.001).

The table below gives all the possible analogue input modes.

Value Mode Function

-6

4-20mA Stop Stop on loss
-5 20-4mA Stop Stop on loss
-4 4-20mA Low 4-20mA switching to equivalent of 4mA input current on loss(1). See Analog Input 1 Preset on Current Loss (07.026).
-3 20-4mA Low 20-4mA switching to equivalent of 4mA input current on loss(1). See Analog Input 1 Preset on Current Loss (07.026)
-2 4-20mA Hold 4-20mA hold at level before loss on current loss (2)
-1 20-4mA Hold 20-4mA hold at level before loss on current loss (2)
0 0-20mA 0-20mA
1 20-0mA 20-0mA
2 4-20mA Trip 4-20mA trip on current loss (1), (3)
3 20-4mA Trip 20-4mA trip on current loss (1), (3)
4 4-20mA 4-20mA no action on loss (1)
5 20-4mA 20-4mA no action on loss (1)
6 Voltage Voltage

(1) Analogue input level is 0.00% if the current is below 3mA.

(2) Analogue input level remains at the value it had in the previous sample before the current fell below 3mA.

(3) A An Input 1 Loss is initiated if the current falls below 3mA.


Parameter07.008  Analogue Input 1 Scaling
Short descriptionDefines the scaling factor of analog input 1
Minimum0.000Maximum10.000
Default1.000Units 
Type16 Bit User SaveUpdate RateBackground read
Display FormatStandardDecimal Places3
CodingRW

See Analog I/O.

Analogue Input 1 (07.001) is modified by Analogue Input 1 Scaling (07.008), Analogue Input 1 Offset (07.030) and Analogue Input 1 Invert (07.009) before it is routed to its destination as follows:

A1O = Analogue Input 1 (07.001) + Analogue Input 1 Offset (07.030)
A1O is the value after the offset has been applied and is limited between -100.00% and 100.00%

A1S = A1O x Analogue Input 1 Scaling (07.008)
A1S is the value after the scaling and the offset have been applied and is limited between -100.00% and 100.00%

If Analogue Input 1 Invert (07.009) = 0 then A1I = A1S otherwise A1I = -A1S

A1I is the value after the invert, scaling and offset have been applied and is the final value that is routed to the destination defined by


Parameter07.009  Analogue Input 1 Invert
Short descriptionInverts the signal for analog input 1
Minimum0Maximum1
Default0Units 
Type1 Bit User SaveUpdate RateBackground read
Display FormatStandardDecimal Places0
CodingRW

See Analogue Input 1 Scaling (07.008).


Parameter07.010  Analogue Input 1 Destination A
Short descriptionDefines the output parameter for analog input 1
Minimum0.000Maximum30.999
Default1.036Units 
Type16 Bit User SaveUpdate RateDrive reset read
Display FormatStandardDecimal Places3
CodingRW, DE, PT

See Analogue Input 1 Scaling (07.008).


Parameter07.026  Analog Input 1 Preset on Current Loss
Short descriptionDefines the current level held on analogue input 1 current loss
Minimum4.00Maximum20.00
Default4.00UnitsmA
Type16 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places2
CodingRW

If Analogue Input 1 Mode (07.007) is set to any of the 4-20mA Low or 20-4mA Low modes and the current falls below 3mA (Analogue Input 1 Current Loop Loss (07.028) = 1) then the analogue input 1 is held to Analog Input 1 Preset on Current Loss (07.026).

If the current rise above 4mA (Analogue Input 1 Current Loop Loss (07.028) = 0) then the analogue input 1 current is used as normal.


Parameter07.028  Analogue Input 1 Current Loop Loss
Short descriptionDisplays when analog input 1 falls below 3mA
Minimum0Maximum1
Default Units 
Type1 Bit VolatileUpdate RateBackground write
Display FormatStandardDecimal Places0
CodingRO, ND, NC, PT

See Analog Input 1 Preset on Current Loss (07.026).


Parameter07.030  Analogue Input 1 Offset
Short descriptionDefines the offset of analog input 1
Minimum-100.00Maximum100.00
Default0.00Units%
Type16 Bit User SaveUpdate RateBackground read
Display FormatStandardDecimal Places2
CodingRW

See Analogue Input 1 Scaling (07.008).


Parameter07.034  Inverter Temperature
Short descriptionDisplays the estimated junction temperature of the hottest power device within the drive inverter
Minimum-250Maximum250
Default Units°C
Type16 Bit VolatileUpdate RateBackground write
Display FormatStandardDecimal Places0
CodingRO, ND, NC, PT

Inverter Temperature (07.034) shows the estimated junction temperature of the hottest power device within the drive inverter. If this temperature exceeds the switch down threshold defined for the power stage the switching frequency is reduced provided this feature has not been disabled (i.e. Auto-switching Frequency Change Disable (05.035) = 0) or the minimum switching frequency has not been reached. The switching frequency can be reduced from 12kHz to 6kHz to 3kHz, or from 16kHz to 8kHz to 4kHz to 2kHz. If the switching frequency has been reduced the drive will attempt to restore it to the required level when the Inverter Temperature (07.034) reduces.


Parameter07.035  Percentage Of d.c. Link Thermal Trip Level
Short descriptionDisplays the percentage of the maximum allowed temperature as estimated by the thermal model of the d.c. link components
Minimum0Maximum100
Default Units%
Type8 Bit VolatileUpdate RateBackground write
Display FormatStandardDecimal Places0
CodingRO, ND, NC, PT

Percentage Of d.c. Link Thermal Trip Level (07.035) gives the percentage of the maximum allowed temperature as estimated by the thermal model of the d.c. link components.


Parameter07.036  Percentage Of Drive Thermal Trip Level
Short descriptionDisplays the percentage of the thermal trip level of the temperature monitoring point or thermal model in the drive that is highest
Minimum0Maximum100
Default Units%
Type8 Bit VolatileUpdate RateBackground write
Display FormatStandardDecimal Places0
CodingRO, ND, NC, PT

Percentage Of Drive Thermal Trip Level (07.036)  gives the percentage of the thermal trip level of the temperature monitoring point or thermal model in the drive that is highest. This includes all thermal monitoring points Stack Temperature (07.004), Auxiliary Temperature (07.005), Inverter Temperature (07.034) and Percentage Of d.c. Link Thermal Trip Level (07.035).

Percentage Of d.c. Link Thermal Trip Level (07.035) is used directly to give Percentage Of Drive Thermal Trip Level (07.036), but for all other monitored values which are temperatures this is given by

Percentage of thermal trip level = (Temperature - 40°C) / (Trip temperature - 40°C) x 100%

The location of the measurement or the thermal model that is related to this temperature is given in Temperature Nearest To Trip Level (07.037). If Percentage Of Drive Thermal Trip Level (07.036) exceeds 90% Drive Over-temperature Alarm (10.018) is set to one. If Percentage Of Drive Thermal Trip Level (07.036) reaches 100% one of the trips given in the table below is initiated. The trip can be reset when the percentage of thermal trip level fall below 95%.

Temperature Trip
Inverter Temperature (07.034) OHt Inverter
Auxiliary Temperature (07.005) OHt Power
Percentage Of d.c. Link Thermal Trip Level (07.035) OHt dc bus


Parameter07.037  Temperature Nearest To Trip Level
Short descriptionDisplays the location or the model that corresponds to the value shown in Percentage Of Drive Thermal Trip Level
Minimum0Maximum29999
Default Units 
Type32 Bit VolatileUpdate RateBackground write
Display FormatStandardDecimal Places0
CodingRO, ND, NC, PT

Temperature Nearest To Trip Level (07.037)  shows the location or the model that corresponds to the value shown in Percentage Of Drive Thermal Trip Level (07.036) in the form xxyzz as shown in the table below.

Source xx y zz
Control system 00 1 00: Inverter thermal model
Control system 00 2 00: D.c. link thermal model
Power system 01 0 zz: Thermistor location defined by zz in the power system
Power system (Large frame only) 01 1 zz: Thermistor location defined by zz in the rectifier


Parameter07.051  Analogue Input 1 Control
Short descriptionDefines the functionality of analog input 1
Minimum0Maximum5
Default0Units 
Type8 Bit User SaveUpdate RateActioned on exit of edit mode and on drive reset
Display FormatStandardDecimal Places0
CodingRW

Value Description Analogue Input 1 Destination B  (07.090)
0 User defined by Analogue Input 1 Destination A (07.010) 00.000
1 Frequency reference 1 01.036
2 Frequency reference 2 01.037
3 Maximum reference clamp 01.006
4 Current limit 04.007
5 Torque reference 04.008

This offers a simple control of parameter to change the analogue input 1 functionality.

If Analogue Input 1 Control (07.051) is more than 0 then the destination is defined by Analogue Input 1 Destination B  (07.090). The destination Analogue Input 1 Destination B  (07.090) is written by Analogue Input 1 Control (07.051) selection. (i.e. If Analogue Input 1 Control (07.051) = 3 then Analogue Input 1 Destination B  (07.090) = 01.006)

If Analogue Input 1 Control (07.051) is 0 then then the destination is defined by Analogue Input 1 Destination A (07.010).


Parameter07.061  Analogue Input 1 Minimum Reference
Short descriptionDefines the minimum reference for analog input 1
Minimum0.00Maximum100.00
Default0.00Units%
Type16 Bit User SaveUpdate RateBackground read
Display FormatStandardDecimal Places2
CodingRW

Analogue Input 1 (07.001) can be scaled and limited using the following parameters:

Parameters above can be selected to limit the range of Analogue Input 1 (07.001) and also scale it between the minimum and maximum reference.

If Analogue Input 1 Minimum Reference (07.061) ≥ Analogue Input 1 Maximum Reference (07.063) then Ai1 = 0.00%whatever the input level.

Input Level is limited between Analogue Input 1 At Minimum Reference (07.062) and Analogue Input 1 At Maximum Reference (07.064)

Analogue Input 1 (07.001) = [(Analogue Input 1 At Maximum Reference (07.064) - Analogue Input 1 At Minimum Reference (07.062)) / (Analogue Input 1 Maximum Reference (07.063) - Analogue Input 1 Minimum Reference (07.061))] x (Input level - Analogue Input 1 Minimum Reference (07.061)) + Analogue Input 1 At Minimum Reference (07.062).


Parameter07.062  Analogue Input 1 At Minimum Reference
Short descriptionDefines the value of analog input 1 at minimum reference
Minimum-100.00Maximum100.00
Default0.00Units%
Type16 Bit User SaveUpdate RateBackground read
Display FormatStandardDecimal Places2
CodingRW

See Analogue Input 1 Minimum Reference (07.061).


Parameter07.063  Analogue Input 1 Maximum Reference
Short descriptionDefines the maximum reference for analog input 1
Minimum0.00Maximum100.00
Default100.00Units%
Type16 Bit User SaveUpdate RateBackground read
Display FormatStandardDecimal Places2
CodingRW

See Analogue Input 1 Minimum Reference (07.061).


Parameter07.064  Analogue Input 1 At Maximum Reference
Short descriptionDefines the value of analog input 1 at maximum reference
Minimum-100.00Maximum100.00
Default100.00Units%
Type16 Bit User SaveUpdate RateBackground read
Display FormatStandardDecimal Places2
CodingRW

See Analogue Input 1 Minimum Reference (07.061).


Parameter07.090  Analogue Input 1 Destination B
Short descriptionDefines the secondary destination for analog input 1
Minimum0.000Maximum30.999
Default0.000Units 
Type16 Bit User SaveUpdate RateDrive reset read
Display FormatStandardDecimal Places3
CodingRO, DE, PT

See Analogue Input 1 Destination A (07.010).