# 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

Parameter | 12.001 Threshold Detector 1 Output
--- | ---
Short description | Displays the output of threshold detector 1
Mode | RFC‑A
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

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) / 2)

Upper threshold = Threshold Detector 1 Level (12.004) + (Threshold Detector 1 Hysteresis (12.005) / 2)

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).

Parameter | 12.002 Threshold Detector 2 Output
--- | ---
Short description | Displays the output of threshold detector 2
Mode | RFC‑A
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 Threshold Detector 1 Output (12.001).

Parameter | 12.003 Threshold Detector 1 Source
--- | ---
Short description | Defines the source paramter for threshold detector 1
Mode | RFC‑A
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 | RW, PT, BU

See Threshold Detector 1 Output (12.001).

Parameter | 12.004 Threshold Detector 1 Level
--- | ---
Short description | Defines the reference level for threshold detector 1
Mode | RFC‑A
Minimum | 0.00 | Maximum | 100.00
Default | 0.00 | Units | %
Type | 16 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW

See Threshold Detector 1 Output (12.001).

Parameter | 12.005 Threshold Detector 1 Hysteresis
--- | ---
Short description | Defines the hysteresis for threshold detector
Mode | RFC‑A
Minimum | 0.00 | Maximum | 25.00
Default | 0.00 | Units | %
Type | 16 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW

See Threshold Detector 1 Output (12.001).

Parameter | 12.006 Threshold Detector 1 Output Invert
--- | ---
Short description | Set to 1 to invert the output of threshold detector 1
Mode | RFC‑A
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 Threshold Detector 1 Output (12.001).

Parameter | 12.007 Threshold Detector 1 Destination
--- | ---
Short description | Defines the destination parameter for threshold detector 1
Mode | RFC‑A
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 | RW, DE, PT, BU

See Threshold Detector 1 Output (12.001).

Parameter | 12.008 Variable Selector 1 Source 1
--- | ---
Short description | Defines the 1st source parameter for variable selector 1
Mode | RFC‑A
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 | RW, 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) x 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 0.00% to 100.00% is defined by Variable Selector 1 Control (12.015)
8: Modulus | | Input 1 |
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

Parameter | 12.009 Variable Selector 1 Source 2
--- | ---
Short description | Defines the 2nd source parameter for variable selector 1
Mode | RFC‑A
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 | RW, PT, BU

See Variable Selector 1 Source 1 (12.008).

Parameter | 12.010 Variable Selector 1 Mode
--- | ---
Short description | Defines the mode for variable selector
Mode | RFC‑A
Minimum | 0 | Maximum | 9
Default | 0 | Units |
Type | 8 Bit User Save | Update Rate | Background read
Display Format | Standard | Decimal Places | 0
Coding | RW, TE

Value | Text
0 | 0
1 | 1
2 | 2
3 | 3
4 | 4
5 | 5
6 | 6
7 | 7
8 | 8
9 | 9

See Variable Selector 1 Source 1 (12.008).

Parameter | 12.011 Variable Selector 1 Destination
--- | ---
Short description | Defines the destination parameter for variable selector 1
Mode | RFC‑A
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 | RW, DE, PT, BU

See Variable Selector 1 Source 1 (12.008).

Parameter | 12.012 Variable Selector 1 Output
--- | ---
Short description | Displays the output of variable selector 1
Mode | RFC‑A
Minimum | -100.00 | Maximum | 100.00
Default |  | Units | %
Type | 16 Bit Volatile | Update Rate | 4ms write
Display Format | Standard | Decimal Places | 2
Coding | RO, ND, NC, PT

See Variable Selector 1 Source 1 (12.008).

Parameter | 12.013 Variable Selector 1 Source 1 Scaling
--- | ---
Short description | Defines the scaling for the 1st input for variable selector 1
Mode | RFC‑A
Minimum | -4.000 | Maximum | 4.000
Default | 1.000 | Units |
Type | 16 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 3
Coding | RW

See Variable Selector 1 Source 1 (12.008).

Parameter | 12.014 Variable Selector 1 Source 2 Scaling
--- | ---
Short description | Defines the scaling for the 2nd input for variable selector 1
Mode | RFC‑A
Minimum | -4.000 | Maximum | 4.000
Default | 1.000 | Units |
Type | 16 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 3
Coding | RW

See Variable Selector 1 Source 1 (12.008).

Parameter | 12.015 Variable Selector 1 Control
--- | ---
Short description | Defines the control for variable selector 1
Mode | RFC‑A
Minimum | 0.00 | Maximum | 100.00
Default | 0.00 | Units |
Type | 16 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW

See Variable Selector 1 Source 1 (12.008).

Parameter | 12.016 Variable Selector 1 Enable
--- | ---
Short description | Enables variable selector 1
Mode | RFC‑A
Minimum | 0 | Maximum | 1
Default | 1 | Units |
Type | 1 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 0
Coding | RW, 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.

Parameter | 12.023 Threshold Detector 2 Source
--- | ---
Short description | Defines the source paramter for threshold detector 2
Mode | RFC‑A
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 | RW, PT, BU

See Threshold Detector 1 Output (12.001).

Parameter | 12.024 Threshold Detector 2 Level
--- | ---
Short description | Defines the reference level for threshold detector 2
Mode | RFC‑A
Minimum | 0.00 | Maximum | 100.00
Default | 0.00 | Units | %
Type | 16 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW

See Threshold Detector 1 Output (12.001).

Parameter | 12.025 Threshold Detector 2 Hysteresis
--- | ---
Short description | Defines the hysteresis for threshold detector 2
Mode | RFC‑A
Minimum | 0.00 | Maximum | 25.00
Default | 0.00 | Units | %
Type | 16 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW

See Threshold Detector 1 Output (12.001).

Parameter | 12.026 Threshold Detector 2 Output Invert
--- | ---
Short description | Set to 1 to invert the output of threshold detector 2
Mode | RFC‑A
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 Threshold Detector 1 Output (12.001).

Parameter | 12.027 Threshold Detector 2 Destination
--- | ---
Short description | Defines the destination parameter for threshold detector 2
Mode | RFC‑A
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 | RW, DE, PT, BU

See Threshold Detector 1 Output (12.001).

Parameter | 12.028 Variable Selector 2 Source 1
--- | ---
Short description | Defines the 1st source parameter for variable selector 2
Mode | RFC‑A
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 | RW, PT, BU

See Variable Selector 1 Source 1 (12.008).

Parameter | 12.029 Variable Selector 2 Source 2
--- | ---
Short description | Defines the 2nd source parameter for variable selector 2
Mode | RFC‑A
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 | RW, PT, BU

See Variable Selector 1 Source 1 (12.008).

Parameter | 12.030 Variable Selector 2 Mode
--- | ---
Short description | Defines the mode for variable selector 2
Mode | RFC‑A
Minimum | 0 | Maximum | 9
Default | 0 | Units |
Type | 8 Bit User Save | Update Rate | Background read
Display Format | Standard | Decimal Places | 0
Coding | RW, TE

Value | Text
0 | 0
1 | 1
2 | 2
3 | 3
4 | 4
5 | 5
6 | 6
7 | 7
8 | 8
9 | 9

See Variable Selector 1 Source 1 (12.008).

Parameter | 12.031 Variable Selector 2 Destination
--- | ---
Short description | Defines the destination parameter for variable selector 2
Mode | RFC‑A
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 | RW, DE, PT, BU

See Variable Selector 1 Source 1 (12.008).

Parameter | 12.032 Variable Selector 2 Output
--- | ---
Short description | Displays the output of variable selector 2
Mode | RFC‑A
Minimum | -100.00 | Maximum | 100.00
Default |  | Units | %
Type | 16 Bit Volatile | Update Rate | 4ms write
Display Format | Standard | Decimal Places | 2
Coding | RO, ND, NC, PT

See Variable Selector 1 Source 1 (12.008).

Parameter | 12.033 Variable Selector 2 Source 1 Scaling
--- | ---
Short description | Defines the scaling for the 1st input for variable selector 2
Mode | RFC‑A
Minimum | -4.000 | Maximum | 4.000
Default | 1.000 | Units |
Type | 16 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 3
Coding | RW

See Variable Selector 1 Source 1 (12.008).

Parameter | 12.034 Variable Selector 2 Source 2 Scaling
--- | ---
Short description | Defines the scaling for the 2nd input for variable selector 2
Mode | RFC‑A
Minimum | -4.000 | Maximum | 4.000
Default | 1.000 | Units |
Type | 16 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 3
Coding | RW

See Variable Selector 1 Source 1 (12.008).

Parameter | 12.035 Variable Selector 2 Control
--- | ---
Short description | Defines the control for variable selector 2
Mode | RFC‑A
Minimum | 0.00 | Maximum | 100.00
Default | 0.00 | Units |
Type | 16 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW, BU

See Variable Selector 1 Source 1 (12.008).

Parameter | 12.036 Variable Selector 2 Enable
--- | ---
Short description | Enables variable selector 2
Mode | RFC‑A
Minimum | 0 | Maximum | 1
Default | 1 | Units |
Type | 1 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 0
Coding | RW, BU

See Variable Selector 1 Source 1 (12.008).

Parameter | 12.040 BC Brake Release
--- | ---
Short description | Inidicates that the brake controller has released the mechanical brake
Mode | RFC‑A
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

The functions of BC Brake Release (12.040) and BC Enable (12.041) are the same in all drive modes and are described below. The functions of other brake controller parameters vary between drive modes, and these are described in separate sections.

The mechanical brake control function can be used to control an electro-mechanical brake via digital I/O.

BC 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.

If BC 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 BC Enable (12.041) from 1 to 0.

Parameter
Force Reference Direction (01.057)
Ramp Hold (02.003)

Open loop mode

Current detection
The Current Magnitude (04.001) is compared to an upper and lower threshold by a comparator with hysteresis to give torque present and drive output open detection functions respectively. BC Lower Current Threshold (12.043) and BC Upper Current Threshold (12.042) are given as a percentage of Motor Rated Current (05.007). BC Upper Current Threshold (12.042) should be set to the current level that indicates that there is magnetising current and sufficient torque producing current in the motor to deliver the required amount of torque when the brake is released. The output of the comparator remains active after this level has been reached unless the current subsequently falls below BC Lower Current Threshold (12.043) which should be set to the required level to detect the condition where the motor has been disconnected from the drive. If BC Lower Current Threshold (12.043) ≥ BC Upper Current Threshold (12.042) then the upper threshold applies with a hysteresis band of 0. If BC Lower Current Threshold (12.043) = BC Upper Current Threshold (12.042) = 0 then the output of the comparator is always one.

Frequency detection
The frequency comparator is used on starting, to detect when the motor frequency has reached a level where the motor can produce the required amount of torque to ensure that the motor rotates in the demanded direction when the brake is released. BC Brake Release Frequency (12.044) should be set to a level slightly above the motor slip frequency that is likely to occur under the highest expected load that is applied to the motor when the brake is released.

The brake apply frequency threshold is used to ensure that the brake is applied before the motor frequency reaches zero and to prevent the motor rotating (in the reverse direction due to an overhauling load for example) during the brake apply time. If the frequency falls below BC Brake Apply Frequency (12.045), but the motor is not required to stop (i.e. reversing direction without stopping) then Reference On (01.011) will be one, and so the brake is not applied. This prevents the brake from activating and de-activating as the motor passes through zero speed. If the frequency falls below BC Brake Apply Frequency (12.045) and Reference On (01.011) = 0 then the brake will be applied.

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

The current detection, frequency detection and Drive Active (10.002) levels are used to allow the brake to be released. BC Brake Delay (12.046) is the delay allowed after the correct current and frequency levels have been detected before the brake is released. BC Post-brake Release Delay (12.047) is the time allowed for the brake to be released before the frequency is allowed to increase above the BC Brake Release Frequency (12.044).

Applying the brake as the frequency passes through zero
In Open-loop mode the torque produced may reduce as the frequency passes through zero. To prevent the load from falling during this period in a vertical application, it is possible to apply the brake momentarily to hold the load. If BC Brake Apply Through Zero Threshold (12.051) = 0 then the brake is not applied when the frequency passes through zero unless Reference On (01.011) = 0. If BC Brake Apply Through Zero Threshold (12.051) is non-zero then the brake is always applied when the modulus of frequency is less than BC Brake Apply Through Zero Threshold (12.051) even if Reference On (01.011) = 1. This ensures that the brake is applied and then released as the frequency passes through zero. BC Brake Apply Through Zero Threshold (12.051) should be set to a value that is lower than both BC Brake Release Frequency (12.044) and BC Brake Apply Frequency (12.045) so that it does not interfere with the control of the brake when starting and stopping.

Forced initial direction
If BC Initial Direction (12.050) = 0 then the brake controller operates as described above and the user reference is used to define the direction of operation. If BC Initial Direction (12.050) = 1 then Force Reference Direction (01.057) is used force the frequency reference to the positive modulus of its value until the end of the post-brake release period whatever the direction of the reference from the user. This can be used for example to ensure that in a vertical application the motor will definitely hold the load at the point when the brake is released. The diagram below shows the brake controller sequence when BC Initial Direction (12.050) = 1, but the user reference direction is reverse. It should be noted that BC Initial Direction (12.050) has no effect if BC Brake Apply Through Zero Threshold (12.051) is non-zero, and that the reference direction is always used as the initial direction, to prevent a condition where the brake would release then apply repeatedly.

If BC Initial Direction (12.050) = 2 then Force Reference Direction (01.057) is used to force the frequency reference to minus the modulus of its value until the end of the post-brake release period to ensure that the output frequency is negative during this period.

RFC-A

In closed loop mode, the torque produced may reduce as the frequency passes through zero. A brake controller similar to the one used for open loop mode is provided 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 Demand Reference (03.001) is used instead of Output Frequency (05.001).
2. The frequency thresholds are replaced with estimated frequency 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 BC Lower Current Threshold (12.043) or the drive is disabled. BC 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.

Parameter | 12.041 BC Enable
--- | ---
Short description | Enables the brake control function
Mode | RFC‑A
Minimum | 0 | Maximum | 3
Default | 0 | Units |
Type | 8 Bit User Save | Update Rate | Action on exit from edit and reset
Display Format | Standard | Decimal Places | 0
Coding | RW, TE

Value | Text
0 | Dis
1 | Relay
2 | dig IO
3 | USEr

If BC Enable (12.041) = 0, the brake controller is disabled.

If BC Enable (12.041) = 1, the brake controller is enabled with I/O set up to control the brake via the relay output. Drive healthy is re-routed to digital I/O.

If BC Enable (12.041) = 2, the brake controller is enabled with I/O set up to control the brake via digital I/O. Drive healthy is routed to the relay output.

If BC Enable (12.041) = 3, the brake controller is enabled, but no parameters are set up to select the brake output.

Previous value of BC Enable (12.041) | New value of BC Enable (12.041) | Digital I/O 1 Invert (08.011) | Relay 1 Invert (08.018) | Digital I/O 01 mode (08.031) | DO1 Control (08.091) | Relay 1 Control (08.098)
Any | 0 | 0 | 0 | 1 | 0 | 0
Any | 1 | 0 | 0 | 1 | 15 | 18
Not 1 | 2 | 0 | No change | 1 | 18 | No change
1 | 2 | 0 | 0 | 1 | 18 | 15
0 or 1 | 3 | 0 | 0 | 1 | 0 | 0
2 | 3 | 0 | No change | 1 | 0 | 0

Action will only occur if the drive is inactive, not in UU state and no User Actions are running. Otherwise, the parameter will return to its pre altered value on exit from edit mode.

All parameters are saved if this parameter changes.

See BC Brake Release (12.040)

Parameter | 12.042 BC Upper Current Threshold
--- | ---
Short description | Defines the upper current threshold for the brake
Mode | RFC‑A
Minimum | 0 | Maximum | 200
Default | 50 | Units | %
Type | 8 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 0
Coding | RW, BU

See BC Brake Release (12.040).

Parameter | 12.043 BC Lower Current Threshold
--- | ---
Short description | Defines the lower current limit for the brake
Mode | RFC‑A
Minimum | 0 | Maximum | 200
Default | 10 | Units | %
Type | 8 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 0
Coding | RW, BU

See BC Brake Release (12.040).

Parameter | 12.044 BC Brake Release Frequency
--- | ---
Short description | Defines the brake release frequency
Mode | RFC‑A
Minimum | 0.00 | Maximum | 20.00
Default | 1.00 | Units | Hz
Type | 16 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW, BU

See BC Brake Release (12.040).

Parameter | 12.045 BC Brake Apply Frequency
--- | ---
Short description | Defines the brake apply frequency
Mode | RFC‑A
Minimum | 0.00 | Maximum | 20.00
Default | 2.00 | Units | Hz
Type | 16 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW, BU

See BC Brake Release (12.040).

Parameter | 12.046 BC Brake Delay
--- | ---
Short description | Defines the pre-brake release delay
Mode | RFC‑A
Minimum | 0.0 | Maximum | 25.0
Default | 1.0 | Units | s
Type | 16 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 1
Coding | RW, BU

See BC Brake Release (12.040).

Parameter | 12.047 BC Post-brake Release Delay
--- | ---
Short description | Defines the post-brake release delay
Mode | RFC‑A
Minimum | 0.0 | Maximum | 25.0
Default | 1.0 | Units | s
Type | 16 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 1
Coding | RW, BU

See BC Brake Release (12.040).

Parameter | 12.050 BC Initial Direction
--- | ---
Short description | Defines the initial direction of the brake
Mode | RFC‑A
Minimum | 0 | Maximum | 2
Default | 0 | Units |
Type | 8 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 0
Coding | RW, TE

Value | Text
0 | reF
1 | For
2 | Rev

See BC Brake Release (12.040).

Parameter | 12.051 BC Brake Apply Through Zero Threshold
--- | ---
Short description | Defines if the brake is applied through zero threshold
Mode | RFC‑A
Minimum | 0.00 | Maximum | 20.00
Default | 1.00 | Units | Hz
Type | 16 Bit User Save | Update Rate | 4ms read
Display Format | Standard | Decimal Places | 2
Coding | RW, BU

See BC Brake Release (12.040).