# Menu 1 − Frequency References

References

The Clamped Reference is provided as a source for the PID control contained in menu 14. The Alternative Reference is provided as a destination for the output from the PID.

Parameter | 01.001 Reference Selected
--- | ---
Short description | Displays the basic reference selected from the available sources
Minimum | −VM_SPEED_FREQ_REF | Maximum | VM_SPEED_FREQ_REF
Default |  | Units | Hz
Type | 32 Bit Volatile | Update Rate | 4ms write
Display Format | Standard | Decimal Places | 2
Coding | RO, VM, ND, NC, PT

Reference Selected (01.001) is the basic reference selected from the available sources including the effect of the reference offset. See Fig.1.1.

Parameter | 01.002 Pre-skip Filter Reference
--- | ---
Short description | Displays the level of the reference after the reference clamps
Minimum | −VM_SPEED_FREQ_REF | Maximum | VM_SPEED_FREQ_REF
Default |  | Units | Hz
Type | 32 Bit Volatile | Update Rate | 4ms write
Display Format | Standard | Decimal Places | 2
Coding | RO, VM, ND, NC, PT

Parameter | 01.003 Pre-ramp Reference
--- | ---
Short description | Displays the final output from the reference system
Minimum | −VM_SPEED_FREQ_REF | Maximum | VM_SPEED_FREQ_REF
Default |  | Units | Hz
Type | 32 Bit Volatile | Update Rate | 4ms write
Display Format | Standard | Decimal Places | 2
Coding | RO, VM, ND, NC, PT

Fig.1.3 shows the process from the Pre-skip Filter Reference (01.002) to the Pre-ramp Reference (01.003). The Pre-ramp Reference (01.003) is the final output from the Menu 01 reference system that is fed into the Menu 02 ramp system.

Parameter | 01.004 Reference Offset
--- | ---
Short description | Defines the the offset applied to the reference
Minimum | −VM_SPEED_FREQ_REF | Maximum | VM_SPEED_FREQ_REF
Default | 0.00 | Units | Hz
Type | 32 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW, VM

If Reference Offset Select (01.009) = 0 then Reference Selected (01.001) is the selected reference multiplied by [1 + Percentage Trim (01.038) / 100.00)].

If Reference Offset Select (01.009) = 1 then the Reference Offset (01.004) is added to the selected reference to give Reference Selected (01.001).

If Reference Offset Select (01.009) = 2 then Reference Selected (01.001) is the selected reference plus the maximum output frequency multiplied by (Percentage Trim (01.038) / 100.00).

Parameter | 01.005 Jog Reference
--- | ---
Short description | Defines the reference when jog is enabled
Minimum | 0.00 | Maximum | 300.00
Default | 1.50 | Units | Hz
Type | 16 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW, BU

Parameter | 01.006 Maximum Reference Clamp
--- | ---
Short description | Defines the maximum value for the reference
Minimum | −VM_POSITIVE_REF_CLAMP | Maximum | VM_POSITIVE_REF_CLAMP
Default | See exceptions below | Units | Hz
Type | 32 Bit User Save | Update Rate | Background read
Display Format | Standard | Decimal Places | 2
Coding | RW, VM

Region | Default Value
50Hz | 50.00
60Hz | 60.00

Maximum Reference Clamp (01.006) provides a limit on the maximum frequency. (If Select Motor 2 Parameters (11.045) = 1 then M2 Maximum Reference Clamp (21.001) is used instead.)

Parameter | 01.007 Minimum Reference Clamp
--- | ---
Short description | Defines the minimum value for the reference
Minimum | −VM_NEGATIVE_REF_CLAMP1 | Maximum | VM_NEGATIVE_REF_CLAMP1
Default | 0.00 | Units | Hz
Type | 32 Bit User Save | Update Rate | Background read
Display Format | Standard | Decimal Places | 2
Coding | RW, VM

If Negative Reference Clamp Enable (01.008) = 1 then Minimum Reference Clamp (01.007) is forced to be a negative value and is applied to the final reference as the negative limit. If Negative Reference Clamp Enable (01.008) = 0 then - Maximum Reference Clamp (01.006) is applied to the final reference as the negative limit. (If Select Motor 2 Parameters (11.045) = 1 then M2 Minimum Reference Clamp (21.002) is used instead.)

The minimum reference clamp is also used to provide the minimum frequency limit for uni-polar mode (i.e. Bipolar Reference Enable (01.010) = 0) after the Reference Selected (01.001) as shown in Fig.1.2.

Parameter | 01.008 Negative Reference Clamp Enable
--- | ---
Short description | Set to 1 to allow the minimum reference clamp value to be negative
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 Minimum Reference Clamp (01.007).

Parameter | 01.009 Reference Offset Select
--- | ---
Short description | Enables the use of the reference offset
Minimum | 0 | Maximum | 2
Default | 0 | Units |
Type | 8 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 0
Coding | RW

See Reference Offset (01.004).

Parameter | 01.010 Bipolar Reference Enable
--- | ---
Short description | Enables the minimum value of the reference to be negative
Minimum | 0 | Maximum | 1
Default | 0 | Units |
Type | 1 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 0
Coding | RW

See Minimum Reference Clamp (01.007).

Parameter | 01.011 Reference On
--- | ---
Short description | Indicates that the reference from the reference system is active
Minimum | 0 | Maximum | 1
Default |  | Units |
Type | 1 Bit Volatile | Update Rate | 2ms write
Display Format | Standard | Decimal Places | 0
Coding | RO, ND, NC, PT

Reference On (01.011), which is controlled by the drive sequencer (see Menu 06) indicates that the reference from the reference system is active. Note that Reference On (01.011) is also used in RFC-A and RFC-S modes to enable and disable the Hard Frequency Reference (03.022).

Parameter | 01.012 Reverse Select
--- | ---
Short description | Indicates when the reverse function is active
Minimum | 0 | Maximum | 1
Default |  | Units |
Type | 1 Bit Volatile | Update Rate | 2ms write
Display Format | Standard | Decimal Places | 0
Coding | RO, ND, NC, PT

Reverse Select (01.012), which is controlled by the drive sequencer (see Menu 06), is used to invert Reference Selected (01.001) or the Jog Reference (01.005).

Parameter | 01.013 Jog Select
--- | ---
Short description | Indicates when the jog function is active
Minimum | 0 | Maximum | 1
Default |  | Units |
Type | 1 Bit Volatile | Update Rate | 2ms write
Display Format | Standard | Decimal Places | 0
Coding | RO, ND, NC, PT

Jog Select (01.013) which is controlled by the drive sequencer (see Menu 06), is used to select the Jog Reference (01.005).

Parameter | 01.014 Reference Selector
--- | ---
Short description | Defines the source for the reference
Minimum | 0 | Maximum | 6
Default | 0 | Units |
Type | 8 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 0
Coding | RW, TE

Value | Text | Description
0 | A1.A2 | Analogue reference 1 or 2 selected by terminal input
1 | A1.Pr | Analogue reference 1 or Presets selected by terminal input
2 | A2.Pr | Analogue reference 2 or Presets selected by terminal input
3 | Preset | Preset reference selected by terminal
4 | Pad | Keypad reference selected
5 | Res | Reserved
6 | Pad.Ref | Keypad reference selected but no control mode

See Control Word Enable (06.043) which will take priority over Reference Selector (01.014).

If Drive Configuration (11.034) i sset to 8 then Reference Selector (01.014) is automatically set to 4.

Reference Selector (01.014) defines how Reference Selected Indicator (01.049) is derived. If 0 Reference Selector (01.014) Reference Selected Indicator (01.049) is equal to Reference Selector (01.014). If Reference Selector (01.014) = 0 then Reference Selected Indicator (01.049) is controlled by the reference select flags as shown below. The higher numbered flags have priority over the lower numbered flags.

Reference select flag states | Reference Selected Indicator (01.049)
All reference select flags equal to 0 | 1
Reference Select Flag 1 (01.041) = 1 | 2
Reference Select Flag 2 (01.042) = 1 | 3
Reference Select Flag 3 (01.043) = 1 | 4

Preset Selector (01.015) defines how Preset Selected Indicator (01.050) is derived as shown below.

Preset Selector (01.015) | Preset Selected Indicator (01.050)
0 | Controlled by the preset select flags (01.045 to 01.047
1 | 1
2 | 2
3 | 3
4 | 4
5 | 5
6 | 6
7 | 7
8 | 8
9 | Controlled by the present reference selector timer (see Preset Selector Timer (01.016))

When Preset Selector (01.015) = 0 then Preset Selected Indicator (01.050) is defined by the preset select flags as shown below.

| Preset Select Flag 3 (01.047) | Preset Select Flag 2 (01.046) | Preset Select Flag 1 (01.045) | Preset Selected Indicator (01.050)
| 0 | 0 | 0 | 1
| 0 | 0 | 1 | 2
| 0 | 1 | 0 | 3
| 0 | 1 | 1 | 4
| 1 | 0 | 0 | 5
| 1 | 0 | 1 | 6
| 1 | 1 | 0 | 7
| 1 | 1 | 1 | 8

Reference Selected Indicator (01.049) and Preset Selected Indicator (01.050) then define the reference to be used as shown below.

Reference Selected Indicator (01.049) | Preset Selected Indicator (01.050) | Reference
1 | 1 | Analog Reference 1 (01.036)
1 | >1 | Preset reference defined by the value of Preset Selected Indicator (01.050)
2 | 1 | Analog Reference 2 (01.037)
2 | >1 | Preset reference defined by the value of Preset Selected Indicator (01.050)
3 | x | Preset reference defined by the value of Preset Selected Indicator (01.050)
4 | x | Keypad Control Mode Reference (01.017)
5 | x | Not used
6 | x | Keypad Control Mode Reference (01.017)

If Reference Selected Indicator (01.049) = 4 the Keypad Control Mode Reference (01.017) is used and the sequencer operates in keypad mode where the start and stop functions are provided from the drive keypad. Jog Select (01.013) is always 0 when keypad mode is active.

If Reference Selected Indicator (01.049) = 6 the Keypad Control Mode Reference (01.017) is used, but keypad control mode is not active.

Parameter | 01.015 Preset Selector
--- | ---
Short description | Defines which preset is used for the reference
Minimum | 0 | Maximum | 9
Default | 0 | Units |
Type | 8 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 0
Coding | RW

See Reference Selector (01.014).

Parameter | 01.016 Preset Selector Timer
--- | ---
Short description | Defines the time between changes of preset selector
Minimum | 0.0 | Maximum | 400.0
Default | 10.0 | Units | s
Type | 16 Bit User Save | Update Rate | Background read
Display Format | Standard | Decimal Places | 1
Coding | RW

If Preset Selector (01.015) = 9 then Preset Selected Indicator (01.050) is incremented by one at intervals defined by Preset Selector Timer (01.016). When Preset Selected Indicator (01.050) has a value of 8 and is incremented it rolls over to 1. If Preset Selector Timer Reset (01.048) = 1 and Preset Selector (01.015) = 9, then Preset Selected Indicator (01.050) is held at 1.

Parameter | 01.017 Keypad Control Mode Reference
--- | ---
Short description | Displays the value of the keypad reference
Minimum | −VM_SPEED_FREQ_USER_REFS | Maximum | VM_SPEED_FREQ_USER_REFS
Default | 0.00 | Units | Hz
Type | 32 Bit Power Down Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RO, VM, NC, PT

See Reference Selector (01.014) for selection of the Keypad Control Mode Reference (01.017).

Parameter | 01.021 Preset Reference 1
--- | ---
Short description | Defines the value for preset reference 1
Minimum | −VM_SPEED_FREQ_REF | Maximum | VM_SPEED_FREQ_REF
Default | 0.00 | Units | Hz
Type | 32 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW, VM

See Reference Selector (01.014).

Parameter | 01.022 Preset Reference 2
--- | ---
Short description | Defines the value for preset reference 2
Minimum | −VM_SPEED_FREQ_REF | Maximum | VM_SPEED_FREQ_REF
Default | 0.00 | Units | Hz
Type | 32 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW, VM

See Reference Selector (01.014).

Parameter | 01.023 Preset Reference 3
--- | ---
Short description | Defines the value for preset reference 3
Minimum | −VM_SPEED_FREQ_REF | Maximum | VM_SPEED_FREQ_REF
Default | 0.00 | Units | Hz
Type | 32 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW, VM

See Reference Selector (01.014).

Parameter | 01.024 Preset Reference 4
--- | ---
Short description | Defines the value for preset reference 4
Minimum | −VM_SPEED_FREQ_REF | Maximum | VM_SPEED_FREQ_REF
Default | 0.00 | Units | Hz
Type | 32 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW, VM

See Reference Selector (01.014).

Parameter | 01.025 Preset Reference 5
--- | ---
Short description | Defines the value for preset reference 5
Minimum | −VM_SPEED_FREQ_REF | Maximum | VM_SPEED_FREQ_REF
Default | 0.00 | Units | Hz
Type | 32 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW, VM

See Reference Selector (01.014).

Parameter | 01.026 Preset Reference 6
--- | ---
Short description | Defines the value for preset reference 6
Minimum | −VM_SPEED_FREQ_REF | Maximum | VM_SPEED_FREQ_REF
Default | 0.00 | Units | Hz
Type | 32 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW, VM

See Reference Selector (01.014).

Parameter | 01.027 Preset Reference 7
--- | ---
Short description | Defines the value for preset reference 7
Minimum | −VM_SPEED_FREQ_REF | Maximum | VM_SPEED_FREQ_REF
Default | 0.00 | Units | Hz
Type | 32 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW, VM

See Reference Selector (01.014).

Parameter | 01.028 Preset Reference 8
--- | ---
Short description | Defines the value for preset reference 8
Minimum | −VM_SPEED_FREQ_REF | Maximum | VM_SPEED_FREQ_REF
Default | 0.00 | Units | Hz
Type | 32 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW, VM

See Reference Selector (01.014).

Parameter | 01.029 Skip Reference 1
--- | ---
Short description | Defines the 1st reference point to skip
Minimum | 0.00 | Maximum | 550.00
Default | 0.00 | Units | Hz
Type | 32 Bit User Save | Update Rate | Background read
Display Format | Standard | Decimal Places | 2
Coding | RW

The skip references functions are available to prevent continuous operation within a specified frequency range (i.e. where mechanical resonance may occur). When Skip Reference 1 (01.029) = 0 Filter 1 is disabled. Skip Reference Band 1 (01.030) defines the range either side of Skip Reference 1 (01.029) over which references are rejected in either direction. The actual rejection band is therefore twice that defined by Skip Reference Band 1 (01.030) with Skip Reference 1 (01.029) as the centre of the band. When the selected reference is within the rejection band the lower limit of the band is passed through the filter so that reference is always less than demanded.

Filter 2 (Skip Reference 2 (01.031), Skip Reference Band 2 (01.032)) and Filter 3 (Skip Reference 3 (01.033), Skip Reference Band 3 (01.034)) operate in the same ways as Filter 1.

If any of the filters are active (i.e. the reference is within their rejection band) Reference In Rejection Zone (01.035) is set to 1, otherwise it is 0.

Parameter | 01.030 Skip Reference Band 1
--- | ---
Short description | Defines the range either side of skip reference 1 to be implemented
Minimum | 0.00 | Maximum | 25.00
Default | 0.50 | Units | Hz
Type | 16 Bit User Save | Update Rate | Background read
Display Format | Standard | Decimal Places | 2
Coding | RW, BU

See Skip Reference 1 (01.029).

Parameter | 01.031 Skip Reference 2
--- | ---
Short description | Defines the 2nd reference point to skip
Minimum | 0.00 | Maximum | 550.00
Default | 0.00 | Units | Hz
Type | 32 Bit User Save | Update Rate | Background read
Display Format | Standard | Decimal Places | 2
Coding | RW

See Skip Reference 1 (01.029).

Parameter | 01.032 Skip Reference Band 2
--- | ---
Short description | Defines the range either side of skip reference 2 to be implemented
Minimum | 0.00 | Maximum | 25.00
Default | 0.50 | Units | Hz
Type | 16 Bit User Save | Update Rate | Background read
Display Format | Standard | Decimal Places | 2
Coding | RW, BU

See Skip Reference 1 (01.029).

Parameter | 01.033 Skip Reference 3
--- | ---
Short description | Defines the 3rdreference point to skip
Minimum | 0.00 | Maximum | 550.00
Default | 0.00 | Units | Hz
Type | 32 Bit User Save | Update Rate | Background read
Display Format | Standard | Decimal Places | 2
Coding | RW

See Skip Reference 1 (01.029).

Parameter | 01.034 Skip Reference Band 3
--- | ---
Short description | Defines the range either side of skip reference 3 to be implemented
Minimum | 0.00 | Maximum | 25.00
Default | 0.50 | Units | Hz
Type | 16 Bit User Save | Update Rate | Background read
Display Format | Standard | Decimal Places | 2
Coding | RW, BU

See Skip Reference 1 (01.029).

Parameter | 01.035 Reference In Rejection Zone
--- | ---
Short description | Displays when the reference is in 1 of the pre-defined rejection zones
Minimum | 0 | Maximum | 1
Default |  | Units |
Type | 1 Bit Volatile | Update Rate | 4ms write
Display Format | Standard | Decimal Places | 0
Coding | RO, ND, NC, PT

See Skip Reference 1 (01.029).

Parameter | 01.036 Analog Reference 1
--- | ---
Short description | Defines the relationship between the final value from analog 1 input and the frequency or speed reference
Minimum | −VM_SPEED_FREQ_USER_REFS | Maximum | VM_SPEED_FREQ_USER_REFS
Default | 0.00 | Units | Hz
Type | 32 Bit Volatile | Update Rate | 1ms read
Display Format | Standard | Decimal Places | 2
Coding | RO, VM, NC

Analog Reference 1 (01.036) or Analog Reference 2 (01.037) should be used as the destinations for drive analog inputs when these provide the frequency reference. The variable maximum/minimum applied to Analog Reference 1 (01.036) or Analog Reference 2 (01.037) gives the relationship shown below between the final value from the analog input and the frequency reference.

Parameter | 01.038 Percentage Trim
--- | ---
Short description | Defines the value of the reference trim as a percentage
Minimum | -100.00 | Maximum | 100.00
Default | 0.00 | Units | %
Type | 16 Bit Volatile | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW, NC

See Reference Offset Select (01.009).

Parameter | 01.042 Reference Select Flag 2
--- | ---
Short description | Defines which reference is selected by the drive
Minimum | 0 | Maximum | 1
Default | 0 | Units |
Type | 1 Bit Volatile | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 0
Coding | RW, NC

See Reference Selector (01.014).

Parameter | 01.043 Reference Select Flag 3
--- | ---
Short description | Defines which reference is selected by the drive
Minimum | 0 | Maximum | 1
Default | 0 | Units |
Type | 1 Bit Volatile | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 0
Coding | RW, NC

See Reference Selector (01.014).

Parameter | 01.045 Preset Select Flag 1
--- | ---
Short description | Defines which preset is selected by the drive
Minimum | 0 | Maximum | 1
Default | 0 | Units |
Type | 1 Bit Volatile | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 0
Coding | RW, NC

See Reference Selector (01.014).

Parameter | 01.046 Preset Select Flag 2
--- | ---
Short description | Defines which preset is selected by the drive
Minimum | 0 | Maximum | 1
Default | 0 | Units |
Type | 1 Bit Volatile | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 0
Coding | RW, NC

See Reference Selector (01.014).

Parameter | 01.047 Preset Select Flag 3
--- | ---
Short description | Defines which preset is selected by the drive
Minimum | 0 | Maximum | 1
Default | 0 | Units |
Type | 1 Bit Volatile | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 0
Coding | RW, NC

See Reference Selector (01.014).

Parameter | 01.048 Preset Selector Timer Reset
--- | ---
Short description | Set to 1 to hold the preset selected indicator at 1
Minimum | 0 | Maximum | 1
Default | 0 | Units |
Type | 1 Bit Volatile | Update Rate | Background read
Display Format | Standard | Decimal Places | 0
Coding | RW, NC

See Preset Selector Timer (01.016).

Parameter | 01.049 Reference Selected Indicator
--- | ---
Short description | Displays which reference is currently selected
Minimum | 1 | Maximum | 6
Default |  | Units |
Type | 8 Bit Volatile | Update Rate | 4ms write
Display Format | Standard | Decimal Places | 0
Coding | RO, ND, NC, PT

See Reference Selector (01.014).

Parameter | 01.050 Preset Selected Indicator
--- | ---
Short description | Displays which preset is currently selected
Minimum | 1 | Maximum | 8
Default |  | Units |
Type | 8 Bit Volatile | Update Rate | 4ms write
Display Format | Standard | Decimal Places | 0
Coding | RO, ND, NC, PT

See Reference Selector (01.014).

Parameter | 01.051 Power-up Keypad Control Mode Reference
--- | ---
Short description | Defines which value of keypad control mode reference is displayed at power-up
Minimum | 0 | Maximum | 2
Default | 0 | Units |
Type | 8 Bit User Save | Update Rate | Power-up read
Display Format | Standard | Decimal Places | 0
Coding | RW, TE

Value | Text | Description
0 | Reset | Keypad reference is zero
1 | Last | Keypad reference is the last used value
2 | Preset | Keypad reference is copied from Preset speed 1 (01.21)

Power-up Keypad Control Mode Reference (01.051) defines the value written to Keypad Control Mode Reference (01.017) at power-up as given below.

Power-up Keypad Control Mode Reference (01.051) | Value wrriten to Keypad Control Mode Reference (01.017) at power-up
0 | 0.0
1 | The value in Keypad Control Mode Reference (01.017) at the previous power-down
2 | The value saved in Preset Reference 1 (01.021)

Parameter | 01.057 Force Reference Direction
--- | ---
Short description | Defines the direction of the reference
Minimum | 0 | Maximum | 2
Default | 0 | Units |
Type | 8 Bit Volatile | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 0
Coding | RW, TE

Value | Text
0 | None
1 | For
2 | Rev

If Force Reference Direction (01.057) = 0 then it has no effect. If Force Reference Direction (01.057) is non-zero then the modulus of the reference is used and the sign is defined by the value of Force Reference Direction (01.057). If Force Reference Direction (01.057) = 1 then Pre-skip Filter Reference (01.002) is always positive, and if Force Reference Direction (01.057) = 2 then Pre-skip Filter Reference (01.002) is always zero or negative.

Parameter | 01.069 Reference in rpm
--- | ---
Short description | Displays the value of the reference in rpm
Minimum | −VM_SPEED_FREQ_REF | Maximum | VM_SPEED_FREQ_REF
Default |  | Units | rpm
Type | 32 Bit Volatile | Update Rate | 4ms write
Display Format | Standard | Decimal Places | 0
Coding | RO, VM, ND, NC, PT

Uses the set number of poles.

Parameter | 01.070 Clamped Reference
--- | ---
Short description | Displays the reference that is provided for the PID controller
Minimum | −VM_SPEED_FREQ_REF | Maximum | VM_SPEED_FREQ_REF
Default |  | Units | Hz
Type | 32 Bit Volatile | Update Rate | 4ms write
Display Format | Standard | Decimal Places | 2
Coding | RO, VM, ND, NC, PT

The Clamped Reference (01.070) is provided as a source for the PID control in menu 14.

Parameter | 01.071 Alternative Reference
--- | ---
Short description | Defines the reference which is used as a destination for the output of the PID controller
Minimum | −VM_SPEED_FREQ_REF | Maximum | VM_SPEED_FREQ_REF
Default | 0.00 | Units | Hz
Type | 32 Bit Volatile | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RO, VM, NC

Alternative Reference (01.071) defines the routing parameter used for the source reference.

If the routing parameter is valid the Alternative Reference Enable (01.072) is set to 1.

Parameter | 01.072 Alternative Reference Enable
--- | ---
Short description | Indicates when the Alternative Reference is being used
Minimum | 0 | Maximum | 1
Default |  | Units |
Type | 1 Bit Volatile | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 0
Coding | RO, ND, NC, PT

See Alternative Reference (01.071).