Menu 12 − User Functions 2 and Brake Control

Mode: RFC‑A

Menu 12 provides parameters for the following features:

  1. Threshold detectors
  2. Variable selectors
  3. Mechanical brake controller


Parameter12.001  Threshold Detector 1 Output
Short descriptionDisplays the output of threshold detector 1
ModeRFC‑A
Minimum0Maximum1
Default Units 
Type1 Bit VolatileUpdate Rate4ms write
Display FormatStandardDecimal Places0
CodingRO, ND, NC, PT

The threshold detector functions are always active even if the source and destination are not routed to valid parameters. If the source is not a valid parameter then the source value is taken as 0. The update rate for each of the threshold detector functions is always 4ms.

The following description is for threshold detector 1, but threshold detector 2 operates in the same way. The level of the parameter defined by Threshold Detector 1 Source (12.003) is converted to a percentage and compared to Threshold Detector 1 Level (12.004) with hysteresis to give Threshold Detector 1 Output (12.001) as follows:

Source Threshold Detector 1 Output (12.001)
Source 0
Lower threshold ≤ Source No change of state
Source ≥ Upper threshold 1

Lower threshold = Threshold Detector 1 Level (12.004)Threshold Detector 1 Hysteresis (12.005)
Upper threshold = Threshold Detector 1 Level (12.004) + Threshold Detector 1 Hysteresis (12.005)

The output value can then be inverted with Threshold Detector 1 Output Invert (12.006) before being routed to the destination defined by Threshold Detector 1 Destination (12.007).


Parameter12.002  Threshold Detector 2 Output
Short descriptionDisplays the output of threshold detector 1
ModeRFC‑A
Minimum0Maximum1
Default Units 
Type1 Bit VolatileUpdate Rate4ms write
Display FormatStandardDecimal Places0
CodingRO, ND, NC, PT

See Threshold Detector 1 Output (12.001).


Parameter12.003  Threshold Detector 1 Source
Short descriptionDefines the source paramter for threshold detector 1
ModeRFC‑A
Minimum0.000Maximum59.999
Default0.000Units 
Type16 Bit User SaveUpdate RateDrive reset read
Display FormatStandardDecimal Places3
CodingRW, PT, BU

See Threshold Detector 1 Output (12.001).


Parameter12.004  Threshold Detector 1 Level
Short descriptionDefines the reference level for threshold detector 1
ModeRFC‑A
Minimum0.00Maximum100.00
Default0.00Units%
Type16 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places2
CodingRW

See Threshold Detector 1 Output (12.001).


Parameter12.005  Threshold Detector 1 Hysteresis
Short descriptionDefines the hysteresis for threshold detector 1
ModeRFC‑A
Minimum0.00Maximum25.00
Default0.00Units%
Type16 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places2
CodingRW

See Threshold Detector 1 Output (12.001).


Parameter12.006  Threshold Detector 1 Output Invert
Short descriptionSet to 1 to invert the output of threshold detector 1
ModeRFC‑A
Minimum0Maximum1
Default0Units 
Type1 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places0
CodingRW

See Threshold Detector 1 Output (12.001).


Parameter12.007  Threshold Detector 1 Destination
Short descriptionDefines the destination parameter for threshold detector 1
ModeRFC‑A
Minimum0.000Maximum59.999
Default0.000Units 
Type16 Bit User SaveUpdate RateDrive reset read
Display FormatStandardDecimal Places3
CodingRW, DE, PT, BU

See Threshold Detector 1 Output (12.001).


Parameter12.008  Variable Selector 1 Source 1
Short descriptionDefines the 1st source parameter for variable selector 1
ModeRFC‑A
Minimum0.000Maximum59.999
Default0.000Units 
Type16 Bit User SaveUpdate RateDrive reset read
Display FormatStandardDecimal Places3
CodingRW, PT, BU

The variable selector functions are always active even if the source and destination are not routed to valid parameters. If a source is not a valid parameter then the source value is taken as 0. The update rate for each of the variable selector functions is always 4ms.

The following description is for variable selector 1, but variable selector 2 operates in the same way. The source parameters selected with Variable Selector 1 Source 1 (12.008) and Variable Selector 1 Source 2 (12.009) are converted to a percentage value, scaled with Variable Selector 1 Source 1 Scaling (12.013) and Variable Selector 1 Source 2 Scaling (12.014) respectively and then combined with a function defined by Variable Selector 1 Mode (12.010) to give Variable Selector 1 Output (12.012) as a percentage value. If Variable Selector 1 Enable (12.016) = 1 then the function operates normally. If Variable Selector 1 Enable (12.016) = 0 then Variable Selector 1 Output (12.012) = 0.00% and any states within the function are reset (i.e. the time constant function accumulator is held at zero). If the value of Variable Selector 1 Mode (12.010) is changed then all internal function state are also reset.

The table below shows the functions that can be selected with Variable Selector 1 Mode (12.010).

Variable Selector 1 Mode (12.010) Variable Selector 1 Output (12.012)
0: Input 1 Input 1
1: Input 2 Input 2
2: Add Input 1 + Input 2
3: Subtract Input 1 - Input 2
4: Multiply (Input 1 x Input 2) / 100.00%
5: Divide (Input 1 x 100.00%) / Input 2
6: Time Const Input 1 / (1 + τs) where τ = Variable Selector 1 Control (12.015) seconds
7: Ramp Input 1 as an input to a linear ramp function where the time to ramp from 0.00% to 100.00% is defined by Variable Selector 1 Control (12.015) seconds
8: Modulus |Input1|
9: Powers

If Variable Selector 1 Control (12.015) = 0.02 then Input2 / 100.00%

Else if Variable Selector 1 Control (12.015) = 0.03 then Input3 / 100.00%

Else Input 1

10: Sectional See description below

Sectional Controller

If Variable Selector 1 Mode (12.010) = 10 then the variable selector can be used to provide a sectional control function. (Variable selector 2 operates in the same way.) The sectional control function is intended to apply scaling and a speed offset to a 16 bit position value to generate a new 16 bit position value. The output can be used as an input to the Standard motion controller (Menu 13) and to generate an encoder simulation output (Menu 3).

The position input is selected with Variable Selector 1 Source 1 (12.008) and can be derived from any parameter. However, it is intended to be used with a position value that has a range from 0 to 65535 (e.g. P1 Position (03.029)). The input is scaled so that as Variable Selector 1 Source 1 Scaling (12.013) is changed between -4.000 and 4.000 so the proportion of the input position change added to the accumulator varies from 0.000 to 2.000 (i.e. the change of position input value is added without scaling if Variable Selector 1 Source 1 Scaling (12.013) = 0.000). The remainder from the scaling division is stored and then added at the next sample to maintain an exact ratio between the position input and the position output, provided the speed from source 2 is zero. The controller only takes the change of position from the input source parameter, and not the absolute value, so that when the controller is first made active the output does not jump to the source position, but only moves with any changes of source position after that point in time.

Although the sectional controller is intended to use a source parameter with a range from 0 to 65535, it is possible to use parameters with a different range provided the maximum is a power of two minus 1, i.e. 231 - 1. It should be noted that the change of position is scaled based on the maximum of the parameter, and so a signed position value such as P1 Normalised Position (03.058) which has a maximum that corresponds to half its range will give twice the change of position when compared to P1 Position (03.029). To counteract this effect the scaling applied to the change of position in the sectional controller should be set to 0.5.

The range of Variable Selector 1 Output (12.012) is 0.00% and 100.00%. Unlike other functions the value is not simply limited, but rolls under or over respectively. Although the output destination can be any parameter it is intended to be used with a position value that has a range from 0 to 65535.

The speed input defines a speed offset with a resolution of 0.1rpm. Full scale of the source parameter corresponds to 1000.0rpm. Scaling may be applied using Variable Selector 1 Source 2 Scaling (12.014) to give a full scale value up to 4000.0rpm. The speed input is added to the accumulator to move the output position forwards or backwards with respect to the position input.

The sample time for the variable selector is 4ms and the input or output position must not change by more than half a revolution over this time. Therefore the input or output speed must not exceed 7500rpm.

The diagram below shows an example of how the sectional controller function could be configured. The section input position is provided from the previous section via the P1 position feedback interface. The destination of the variable selector is the Standard Motion Local Reference Position (13.021) in the standard motion controller which is used to provide the speed reference and to control the local motor attached to the drive. The encoder simulation system is used to generate the section output to be fed into the next drive. The source for the encoder simulation is Standard Motion Local Reference Position (13.021).


Parameter12.009  Variable Selector 1 Source 2
Short descriptionDefines the 2nd source parameter for variable selector 1
ModeRFC‑A
Minimum0.000Maximum59.999
Default0.000Units 
Type16 Bit User SaveUpdate RateDrive reset read
Display FormatStandardDecimal Places3
CodingRW, PT, BU

See Variable Selector 1 Source 1 (12.008).


Parameter12.010  Variable Selector 1 Mode
Short descriptionDefines the mode for variable selector 1
ModeRFC‑A
Minimum0Maximum10
Default0Units 
Type8 Bit User SaveUpdate RateBackground read
Display FormatStandardDecimal Places0
CodingRW, TE

ValueText
0Input 1
1Input 2
2Add
3Subtract
4Multiply
5Divide
6Time Const
7 Ramp
8Modulus
9Powers
10Sectional

See Variable Selector 1 Source 1 (12.008).


Parameter12.011  Variable Selector 1 Destination
Short descriptionDefines the destination parameter for variable selector 1
ModeRFC‑A
Minimum0.000Maximum59.999
Default0.000Units 
Type16 Bit User SaveUpdate RateDrive reset read
Display FormatStandardDecimal Places3
CodingRW, DE, PT, BU

See Variable Selector 1 Source 1 (12.008).


Parameter12.012  Variable Selector 1 Output
Short descriptionDisplays the output of variable selector 1
ModeRFC‑A
Minimum-100.00Maximum100.00
Default Units%
Type16 Bit VolatileUpdate Rate4ms write
Display FormatStandardDecimal Places2
CodingRO, ND, NC, PT

See Variable Selector 1 Source 1 (12.008).


Parameter12.013  Variable Selector 1 Source 1 Scaling
Short descriptionDefines the scaling for the 1st input for variable selector 1
ModeRFC‑A
Minimum-4.000Maximum4.000
Default1.000Units 
Type16 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places3
CodingRW

See Variable Selector 1 Source 1 (12.008).


Parameter12.014  Variable Selector 1 Source 2 Scaling
Short descriptionDefines the scaling for the 2nd input for variable selector 1
ModeRFC‑A
Minimum-4.000Maximum4.000
Default1.000Units 
Type16 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places3
CodingRW

See Variable Selector 1 Source 1 (12.008).


Parameter12.015  Variable Selector 1 Control
Short descriptionDefines the control for variable selector 1
ModeRFC‑A
Minimum0.00Maximum100.00
Default0.00Units 
Type16 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places2
CodingRW

See Variable Selector 1 Source 1 (12.008).


Parameter12.016  Variable Selector 1 Enable
Short descriptionEnables variable selector 1
ModeRFC‑A
Minimum0Maximum1
Default1Units 
Type1 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places0
CodingRW, BU

See Variable Selector 1 Source 1 (12.008) for more details.

Variable Selector 1 Enable (12.016) and Variable Selector 2 Enable (12.036) have a default of 1 so that if these parameters are not used the variable selectors will still function.


Parameter12.023  Threshold Detector 2 Source
Short descriptionDefines the source paramter for threshold detector 2
ModeRFC‑A
Minimum0.000Maximum59.999
Default0.000Units 
Type16 Bit User SaveUpdate RateDrive reset read
Display FormatStandardDecimal Places3
CodingRW, PT, BU

See Threshold Detector 1 Output (12.001).


Parameter12.024  Threshold Detector 2 Level
Short descriptionDefines the reference level for threshold detector 2
ModeRFC‑A
Minimum0.00Maximum100.00
Default0.00Units%
Type16 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places2
CodingRW

See Threshold Detector 1 Output (12.001).


Parameter12.025  Threshold Detector 2 Hysteresis
Short descriptionDefines the hysteresis for threshold detector 2
ModeRFC‑A
Minimum0.00Maximum25.00
Default0.00Units%
Type16 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places2
CodingRW

See Threshold Detector 1 Output (12.001).


Parameter12.026  Threshold Detector 2 Output Invert
Short descriptionSet to 1 to invert the output of threshold detector 2
ModeRFC‑A
Minimum0Maximum1
Default0Units 
Type1 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places0
CodingRW

See Threshold Detector 1 Output (12.001).


Parameter12.027  Threshold Detector 2 Destination
Short descriptionDefines the destination parameter for threshold detector 2
ModeRFC‑A
Minimum0.000Maximum59.999
Default0.000Units 
Type16 Bit User SaveUpdate RateDrive reset read
Display FormatStandardDecimal Places3
CodingRW, DE, PT, BU

See Threshold Detector 1 Output (12.001).


Parameter12.028  Variable Selector 2 Source 1
Short descriptionDefines the 1st source parameter for variable selector 2
ModeRFC‑A
Minimum0.000Maximum59.999
Default0.000Units 
Type16 Bit User SaveUpdate RateDrive reset read
Display FormatStandardDecimal Places3
CodingRW, PT, BU

See Variable Selector 1 Source 1 (12.008).


Parameter12.029  Variable Selector 2 Source 2
Short descriptionDefines the 2nd source parameter for variable selector 2
ModeRFC‑A
Minimum0.000Maximum59.999
Default0.000Units 
Type16 Bit User SaveUpdate RateDrive reset read
Display FormatStandardDecimal Places3
CodingRW, PT, BU

See Variable Selector 1 Source 1 (12.008).


Parameter12.030  Variable Selector 2 Mode
Short descriptionDefines the mode for variable selector 2
ModeRFC‑A
Minimum0Maximum10
Default0Units 
Type8 Bit User SaveUpdate RateBackground read
Display FormatStandardDecimal Places0
CodingRW, TE

ValueText
0Input 1
1Input 2
2Add
3Subtract
4Multiply
5Divide
6Time Const
7 Ramp
8Modulus
9Powers
10Sectional

See Variable Selector 1 Source 1 (12.008).


Parameter12.031  Variable Selector 2 Destination
Short descriptionDefines the destination parameter for variable selector 2
ModeRFC‑A
Minimum0.000Maximum59.999
Default0.000Units 
Type16 Bit User SaveUpdate RateDrive reset read
Display FormatStandardDecimal Places3
CodingRW, DE, PT, BU

See Variable Selector 1 Source 1 (12.008).


Parameter12.032  Variable Selector 2 Output
Short descriptionDisplays the output of variable selector 2
ModeRFC‑A
Minimum-100.00Maximum100.00
Default Units%
Type16 Bit VolatileUpdate Rate4ms write
Display FormatStandardDecimal Places2
CodingRO, ND, NC, PT

See Variable Selector 1 Source 1 (12.008).


Parameter12.033  Variable Selector 2 Source 1 Scaling
Short descriptionDefines the scaling for the 1st input for variable selector 2
ModeRFC‑A
Minimum-4.000Maximum4.000
Default1.000Units 
Type16 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places3
CodingRW

See Variable Selector 1 Source 1 (12.008).


Parameter12.034  Variable Selector 2 Source 2 Scaling
Short descriptionDefines the scaling for the 2nd input for variable selector 2
ModeRFC‑A
Minimum-4.000Maximum4.000
Default1.000Units 
Type16 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places3
CodingRW


Parameter12.035  Variable Selector 2 Control
Short descriptionDefines the control for variable selector 2
ModeRFC‑A
Minimum0.00Maximum100.00
Default0.00Units 
Type16 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places2
CodingRW

See Variable Selector 1 Source 1 (12.008).


Parameter12.036  Variable Selector 2 Enable
Short descriptionEnables variable selector 2
ModeRFC‑A
Minimum0Maximum1
Default1Units 
Type1 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places0
CodingRW, BU

See Variable Selector 1 Source 1 (12.008).


Parameter12.040  Brake Control: Brake Release
Short descriptionEnables the brake release function
ModeRFC‑A
Minimum0Maximum1
Default Units 
Type1 Bit VolatileUpdate Rate4ms write
Display FormatStandardDecimal Places0
CodingRO, ND, NC, PT

The mechanical brake control function can be used to control an electro-mechanical brake via digital I/O. Brake Control: Brake Release (12.040) = 0 when the brake should be applied and 1 when the brake should be released. Normally this should be routed to a digital output to control the mechanical brake. See Brake Control: Enable (12.041) for details.


Parameter12.041  Brake Control: Enable
Short descriptionEnables the brake control function
ModeRFC‑A
Minimum0Maximum1
Default0Units 
Type1 Bit User SaveUpdate RateBackground read
Display FormatStandardDecimal Places0
CodingRW

If Brake Control: Enable (12.041) = 0 then the brake controller is disabled. The following parameters which are used by the brake controller to operate the drive are reset to 0 on the transition of Brake Control: Enable (12.041) from 1 to 0.

Parameter Brake Control: Mode (12.052) = 0 Brake Control: Mode (12.052) = 1
Force Reference Direction (01.057)
 
x
Ramp Hold (02.003)
x
x
Hold Zero Speed (06.008)  
x
x
Standard Motion Reference Source (13.004) *  
*x
*x
Standard Motion Controller Mode (13.010) *  
*x
*x

* If Brake Control: Enable Position Control During Brake Release (12.049) = 1

RFC-A mode (Brake Control: Mode (12.052) = 0)
In RFC-A mode with Brake Control: Mode (12.052) = 0 the following brake controller is provided.

Flux and current detection
The flux and current detection signal is made active to allow the brake to be released when the motor flux exceeds 90% of its rated level. The flux and current detection signal remains active unless the motor current falls below Brake Control: Lower Current Threshold (12.043) or the drive is disabled. Brake Control: Lower Current Threshold (12.043) is used to detect if the motor has been disconnected from the drive and should be set to a suitable level to detect this condition. In RFC-S mode the flux and current detection signal follows the drive active signal, and so it is not possible to detect if the motor is disconnected from the drive.

Speed detection
If Reference On (01.011) = 1 then the speed detection signal is active. When Reference On (01.011) is de-activated the speed detection signal is not de-activated until the modulus of Speed Feedback (03.002) falls below Brake Control: Brake Apply Speed (12.045) and an additional delay defined by Brake Control: Brake Delay (12.046).

Brake controller sequence
The brake controller sequence is shown for forward movement in the diagram below.

The brake is released when flux and current detection, and speed detection are active and then the ramp hold is released after a further delay to allow the motor to accelerate away from standstill. When the Speed Feedback (03.002) subsequently falls below Brake Control: Brake Apply Speed (12.045) and Reference On (01.011) = 0 (i.e. the motor is required to stop) then the brake is applied after a delay defined by Brake Control: Brake Delay (12.046). The motor is held at zero speed for a further delay to allow the brake to apply, i.e. Brake Control: Brake Apply Delay (12.048). Ramp Hold (02.003) is held at 1 while the brake is being applied in case the reference is reapplied during this period to prevent the motor running against the brake. Also Ramp Hold (02.003) will already be active when the drive restarts to hold the speed reference at zero. It is also possible for the Standard motion controller to be active during this period to help prevent the motor from moving even under load after the brake has been released by setting Brake Control: Enable Position Control During Brake Release (12.049) = 1.

If required, an input can be routed to External Brake Released Indicator (12.054) to delay the the motor from starting until an external indication is given that the brake has released. To use an external indication Brake Release Source (12.055) should be set to one.

RFC-A mode (Brake Control: Mode (12.052) = 1)
In RFC-A mode without position feedback is used (i.e. Sensorless Mode Active (03.078) = 1) the torque produced may reduce as the speed passes through zero. If Brake Control: Mode (12.052) = 1 a brake controller similar to the one used for Open-loop mode is provided for applications using RFC-A mode without position feedback as shown in the diagram below.

The brake controller operates in the same way as the Open-loop mode brake controller except for the following differences.

    1. Final Speed Reference (03.001) is used instead of Output Frequency (05.001).
    2. The frequency thresholds are replaced with speed thresholds.
    3. Current detection is replaced with flux and current detection as described below.

Flux and current detection
The flux and current detection signal is made active to allow the brake to be released when the motor flux exceeds 90% of its rated level. The flux and current detection signal remains active unless the motor current falls below Brake Control: Lower Current Threshold (12.043) or the drive is disabled. Brake Control: Lower Current Threshold (12.043) is used to detect if the motor has been disconnected from the drive and should be set to a suitable level to detect this condition.


Parameter12.043  Brake Control: Lower Current Threshold
Short descriptionDefines the lower current limit for the brake
ModeRFC‑A
Minimum0Maximum200
Default10Units%
Type8 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places0
CodingRW, BU

See Brake Control: Enable (12.041).


Parameter12.044  Brake Control: Brake Release Speed
Short descriptionDefines the release speed of the brake
ModeRFC‑A
Minimum0Maximum200
Default10Units 
Type8 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places0
CodingRW, BU

See Brake Control: Enable (12.041).


Parameter12.045  Brake Control: Brake Apply Speed
Short descriptionDefines the apply speed of the brake
ModeRFC‑A
Minimum0Maximum200
Default5Units 
Type8 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places0
CodingRW, BU

See Brake Control: Enable (12.041).


Parameter12.046  Brake Control: Brake Delay
Short descriptionDefines the pre-brake release delay
ModeRFC‑A
Minimum0.0Maximum25.0
Default1.0Unitss
Type8 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places1
CodingRW, BU

See Brake Control: Enable (12.041).


Parameter12.047  Brake Control: Post-brake Release Delay
Short descriptionDefines the post-brake release delay
ModeRFC‑A
Minimum0.0Maximum25.0
Default1.0Unitss
Type8 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places1
CodingRW, BU

See Brake Control: Enable (12.041).


Parameter12.048  Brake Control: Brake Apply Delay
Short descriptionDefines the delay for applying the brake
ModeRFC‑A
Minimum0.0Maximum25.0
Default1.0Unitss
Type8 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places1
CodingRW, BU

See Brake Control: Enable (12.041)


Parameter12.049  Brake Control: Enable Position Control During Brake Release
Short descriptionEnables position control during brake release
ModeRFC‑A
Minimum0Maximum1
Default0Units 
Type1 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places0
CodingRW

See Brake Control: Enable (12.041)


Parameter12.050  Brake Control: Initial Direction
Short descriptionDefines the initial direction of the brake
ModeRFC‑A
Minimum0Maximum2
Default0Units 
Type8 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places0
CodingRW, TE

ValueText
0Ref
1Forward
2Reverse

See Brake Control: Enable (12.041).


Parameter12.051  Brake Control: Brake Apply Through Zero Threshold
Short descriptionDefines if the brake is applied through zero threshold
ModeRFC‑A
Minimum0Maximum200
Default5Units 
Type8 Bit User SaveUpdate Rate4ms read
Display FormatStandardDecimal Places0
CodingRW, BU

See Brake Control: Enable (12.041).


Parameter12.052  Brake Control: Mode
Short descriptionDefines the mode of the brake control
ModeRFC‑A
Minimum0Maximum1
Default0Units 
Type1 Bit User SaveUpdate RateBackground read
Display FormatStandardDecimal Places0
CodingRW

If Brake Control: Mode (12.052) = 1 then the brake controller for RFC-A mode without position feedback is selected.


Parameter12.054  External Brake Released Indicator
Short descriptionExternal Brake Released Indicator
ModeRFC‑A
Minimum0Maximum1
Default0Units 
Type1 Bit VolatileUpdate Rate4ms Read
Display FormatStandardDecimal Places0
CodingRW, NC

See Brake Control: Enable (12.041).


Parameter12.055  Brake Release Source
Short descriptionBrake Release Source
ModeRFC‑A
Minimum0Maximum1
Default0Units 
Type1 Bit User SaveUpdate RateBackground Read
Display FormatStandardDecimal Places0
CodingRW

See Brake Control: Enable (12.041).