# Menu 7 − Analog I/O

Drive thermal monitoring

Parameter | 07.001 Analogue Input 1
--- | ---
Short description | Displays the value of analog input 1
Minimum | -100.00 | Maximum | 100.00
Default |  | Units | %
Type | 16 Bit Volatile | Update Rate | 4ms
Display Format | Standard | Decimal Places | 2
Coding | RO, 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%

Parameter | 07.004 Stack Temperature
--- | ---
Short description | Displays the temperature currently being measured on the heat sink
Minimum | -250 | Maximum | 250
Default |  | Units | °C
Type | 16 Bit Volatile | Update Rate | Background write
Display Format | Standard | Decimal Places | 0
Coding | RO, 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.

Parameter | 07.005 Auxiliary Temperature
--- | ---
Short description | Displays the temperature currently being measured on the power system
Minimum | -250 | Maximum | 250
Default |  | Units | °C
Type | 16 Bit Volatile | Update Rate | Background write
Display Format | Standard | Decimal Places | 0
Coding | RO, 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.

Parameter | 07.007 Analogue Input 1 Mode
--- | ---
Short description | Defines the mode of analog input 1
Minimum | -6 | Maximum | 6
Default | 6 | Units |
Type | 8 Bit User Save | Update Rate | Background read
Display Format | Standard | Decimal Places | 0
Coding | RW, TE

Value | Text
‑6 | 4-20.S
‑5 | 20-4.S
‑4 | 4-20.L
‑3 | 20-4.L
‑2 | 4-20.H
‑1 | 20-4.H
0 | 0-20
1 | 20-0
2 | 4-20.tr
3 | 20-4.tr
4 | 4-20
5 | 20-4
6 | Volt

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.

Parameter | 07.008 Analogue Input 1 Scaling
--- | ---
Short description | Defines the scaling factor of analog input 1
Minimum | 0.000 | Maximum | 10.000
Default | 1.000 | Units |
Type | 16 Bit User Save | Update Rate | Background read
Display Format | Standard | Decimal Places | 3
Coding | RW

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

- Analogue Input 1 Destination A (07.010) if Analogue Input 1 Control (07.051) = 0
- Analogue Input 1 Destination B (07.090) if Analogue Input 1 Control (07.051) > 0

Parameter | 07.009 Analogue Input 1 Invert
--- | ---
Short description | Inverts the signal for analog input 1
Minimum | 0 | Maximum | 1
Default | 0 | Units |
Type | 1 Bit User Save | Update Rate | Background read
Display Format | Standard | Decimal Places | 0
Coding | RW

See Analogue Input 1 Scaling (07.008).

Parameter | 07.010 Analogue Input 1 Destination A
--- | ---
Short description | Defines the output parameter for analog input 1
Minimum | 0.000 | Maximum | 30.999
Default | 1.036 | Units |
Type | 16 Bit User Save | Update Rate | Drive reset read
Display Format | Standard | Decimal Places | 3
Coding | RW, DE, PT

See Analogue Input 1 Scaling (07.008).

Parameter | 07.026 Analog Input 1 Preset on Current Loss
--- | ---
Short description | Defines the current level held on analogue input 1 current loss
Minimum | 4.00 | Maximum | 20.00
Default | 4.00 | Units | mA
Type | 16 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW

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.

Parameter | 07.028 Analogue Input 1 Current Loop Loss
--- | ---
Short description | Displays when analog input 1 falls below 3mA
Minimum | 0 | Maximum | 1
Default |  | Units |
Type | 1 Bit Volatile | Update Rate | Background write
Display Format | Standard | Decimal Places | 0
Coding | RO, ND, NC, PT

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

Parameter | 07.030 Analogue Input 1 Offset
--- | ---
Short description | Defines the offset of analog input 1
Minimum | -100.00 | Maximum | 100.00
Default | 0.00 | Units | %
Type | 16 Bit User Save | Update Rate | Background read
Display Format | Standard | Decimal Places | 2
Coding | RW

See Analogue Input 1 Scaling (07.008).

Parameter | 07.034 Inverter Temperature
--- | ---
Short description | Displays the estimated junction temperature of the hottest power device within the drive inverter
Minimum | -250 | Maximum | 250
Default |  | Units | °C
Type | 16 Bit Volatile | Update Rate | Background write
Display Format | Standard | Decimal Places | 0
Coding | RO, 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.

Parameter | 07.035 Percentage Of d.c. Link Thermal Trip Level
--- | ---
Short description | Displays the percentage of the maximum allowed temperature as estimated by the thermal model of the d.c. link components
Minimum | 0 | Maximum | 100
Default |  | Units | %
Type | 8 Bit Volatile | Update Rate | Background write
Display Format | Standard | Decimal Places | 0
Coding | RO, 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.

Parameter | 07.036 Percentage Of Drive Thermal Trip Level
--- | ---
Short description | Displays the percentage of the thermal trip level of the temperature monitoring point or thermal model in the drive that is highest
Minimum | 0 | Maximum | 100
Default |  | Units | %
Type | 8 Bit Volatile | Update Rate | Background write
Display Format | Standard | Decimal Places | 0
Coding | RO, 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

Parameter | 07.037 Temperature Nearest To Trip Level
--- | ---
Short description | Displays the location or the model that corresponds to the value shown in Percentage Of Drive Thermal Trip Level
Minimum | 0 | Maximum | 29999
Default |  | Units |
Type | 32 Bit Volatile | Update Rate | Background write
Display Format | Standard | Decimal Places | 0
Coding | RO, 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

Parameter | 07.051 Analogue Input 1 Control
--- | ---
Short description | Defines the functionality of analog input 1
Minimum | 0 | Maximum | 5
Default | 0 | Units |
Type | 8 Bit User Save | Update Rate | Actioned on exit of edit mode and on drive reset
Display Format | Standard | Decimal Places | 0
Coding | RW

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).

Parameter | 07.061 Analogue Input 1 Minimum Reference
--- | ---
Short description | Defines the minimum reference for analog input 1
Minimum | 0.00 | Maximum | 100.00
Default | 0.00 | Units | %
Type | 16 Bit User Save | Update Rate | Background read
Display Format | Standard | Decimal Places | 2
Coding | RW

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

- Analogue Input 1 Minimum Reference (07.061)
- Analogue Input 1 At Minimum Reference (07.062)
- Analogue Input 1 Maximum Reference (07.063)
- Analogue Input 1 At Maximum Reference (07.064)

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).

Parameter | 07.062 Analogue Input 1 At Minimum Reference
--- | ---
Short description | Defines the value of analog input 1 at minimum reference
Minimum | -100.00 | Maximum | 100.00
Default | 0.00 | Units | %
Type | 16 Bit User Save | Update Rate | Background read
Display Format | Standard | Decimal Places | 2
Coding | RW

See Analogue Input 1 Minimum Reference (07.061).

Parameter | 07.063 Analogue Input 1 Maximum Reference
--- | ---
Short description | Defines the maximum reference for analog input 1
Minimum | 0.00 | Maximum | 100.00
Default | 100.00 | Units | %
Type | 16 Bit User Save | Update Rate | Background read
Display Format | Standard | Decimal Places | 2
Coding | RW

See Analogue Input 1 Minimum Reference (07.061).

Parameter | 07.064 Analogue Input 1 At Maximum Reference
--- | ---
Short description | Defines the value of analog input 1 at maximum reference
Minimum | -100.00 | Maximum | 100.00
Default | 100.00 | Units | %
Type | 16 Bit User Save | Update Rate | Background read
Display Format | Standard | Decimal Places | 2
Coding | RW

See Analogue Input 1 Minimum Reference (07.061).

Parameter | 07.090 Analogue Input 1 Destination B
--- | ---
Short description | Defines the secondary destination for analog input 1
Minimum | 0.000 | Maximum | 30.999
Default | 0.000 | Units |
Type | 16 Bit User Save | Update Rate | Drive reset read
Display Format | Standard | Decimal Places | 3
Coding | RO, DE, PT

See Analogue Input 1 Destination A (07.010).