FCB 21 Brake test
Note that this configuration menu is only displayed if the function is activated in the "Basic settings" configuration menu under "Additional functions".
"Use advanced settings" deactivated
Parameter designation | Description |
|---|---|
Basic settings (settings of the general test parameters) | |
Use advanced settings | Activate display and use of the advanced settings. Default value: Off |
Index: 8521.20, Bit0 | |
IEC name: Parameter.Fcb21BrakeTest.UseExtendedSettings | |
Direction of rotation | Select the direction of the generated torque:
The "positive" or "negative" directions refer to rising or falling values of the relevant encoder in DT1. |
Index: 8521.1 | |
IEC name: Parameter.Fcb21BrakeTest.TestMode | |
Torque input relative | Motor torque to be generated for testing the brake. The torque is a relative torque with reference to the motor. Any additional load torque in the application must be taken into account by the user in terms of magnitude and direction when specifying the torque. (in % of nominal motor torque) Default value: 100.0 |
Index: 8521.3 (Int 32) | |
IEC name: Parameter.Fcb21BrakeTest.TestTorque | |
Test duration | Time interval for applying the torque to the applied brake (in ms) Default value: 1000 |
Index: 8521.6 (Int 32) | |
IEC name: Parameter.Fcb21BrakeTest.TestTime | |
Measured motor torque relative | Measured proportion of the torque applied by the motor during the brake test. The value is displayed each time the brake test is performed. (in ms) |
Index: 8521.9 (Int 32) | |
IEC name: Parameter.Fcb21BrakeTest.LoggedTorque | |
Actual values (display of status and test results) | |
Brake test active | Indicates whether the brake test is active. |
Index: 8521.8, Bit0 | |
IEC name: Parameter.Fcb21BrakeTest.Status | |
Brake test aborted | Indicates whether an active brake test has been aborted, e.g. by revoking the enable, controller inhibit or fault status. |
Index: 8521.8, Bit1 | |
IEC name: Parameter.Fcb21BrakeTest.Status | |
Test result NOK | Indicates that the brake test has not been passed, e.g. due to excessive movement during the test. |
Index: 8521.8, Bit2 | |
IEC name: Parameter.Fcb21BrakeTest.Status | |
Test result OK | Indicates that the brake test has been passed and the brake has been able to hold the torque. |
Index: 8521.8, Bit3 | |
IEC name: Parameter.Fcb21BrakeTest.Status | |
"Use advanced settings" activated
Parameter designation | Description |
|---|---|
Basic settings (settings of the general test parameters) | |
Use advanced settings | Activate display and use of the advanced settings. Default value: Off |
Index: 8521.20, Bit0 | |
IEC name: Parameter.Fcb21BrakeTest.UseExtendedSettings | |
Direction of rotation | Select the direction of the generated torque:
The "positive" or "negative" directions refer to rising or falling values of the relevant encoder in DT1. |
Index: 8521.1 | |
IEC name: Parameter.Fcb21BrakeTest.TestMode | |
Determine load torque |
|
Index: 8521.23, Bit0 | |
IEC name: Parameter.Fcb21BrakeTest.MeasLoadTorque | |
Load torque INFORMATION: Can only be configured if "Determine load torque" is deactivated. | Existing application-specific load torque. The direction of the load torque is defined by the sign when entered (e.g. -20 Nm). (in Nm) Default value: 0.000 |
Index: 8521.24 (Int 32) | |
IEC name: Parameter.Fcb21BrakeTest.LoadTorque | |
Check load torque INFORMATION: Can only be configured if "Determine load torque" is deactivated. | Select whether the configured "load torque" is to be checked by FCB 21 using its own measurement. Default value: No |
Index: 8521.30 | |
IEC name: Parameter.Fcb21BrakeTest.CheckLoadTorque | |
Permitted load torque tolerance INFORMATION: Can only be configured if "Check load torque" is activated. | Permitted tolerance for the load torque The configured value is taken into account as a ± tolerance for the specified "load torque". (in Nm) Default value: 1.000 |
Index: 8521.31 (Int 32) | |
IEC name: Parameter.Fcb21BrakeTest.LoadTorqueTolerance | |
Test duration | Time interval for applying the torque to the applied brake (in ms) Default value: 1000 |
Index: 8521.6 (Int 32) | |
IEC name: Parameter.Fcb21BrakeTest.TestTime | |
Duration of torque buildup | Time interval for building up the torque against the applied brake (in ms) Default value: 1000 |
Index: 8521.25 (Int 32) | |
IEC name: Parameter.Fcb21BrakeTest.TestTorqueRampUpPeriod | |
Duration of torque reduction | Time interval for reducing the torque against the applied brake (in ms) Default value: 1000 |
Index: 8521.26 (Int 32) | |
IEC name: Parameter.Fcb21BrakeTest.TestTorqueRampDownPeriod | |
Activate test for 2 brakes | Activate test for a 2nd brake. The 2nd brake is automatically tested after the 1st brake. INFORMATION: Testing 2 brakes requires additional wiring for separate control of the brakes. See chapter Brake test – static for additional information. Default value: Off |
Index: 8521.32, Bit0 | |
IEC name: Parameter.Fcb21BrakeTest.Test2Brakes | |
Brake 1/brake 2 (settings of specific test parameters for brake 1/2) | |
Encoder selection | Select the relevant encoder that checks for possible movement during the test:
|
Index for brake 1: 8521.29 Index for brake 2: 8521.59 | |
IEC name for brake 1: Parameter.Fcb21BrakeTest.EncSelection IEC name for brake 2: Parameter.Fcb21BrakeTest.EncSelection2 | |
Actual speed source | Displays the current encoder assignment for "actual speed source" in DT1 Default value: Encoder 1 |
Index: 8565.2 | |
IEC name: Parameter.EncoderAssignment1.ActualSpeedSource | |
Actual position source | Displays the current encoder assignment for "actual position source" in DT1 Default value: Encoder 1 |
Index: 8565.3 | |
IEC name: – | |
Permitted movement during testing | Permitted movement during the brake test If the value is exceeded, the test result is NOK. (in user units) |
Index for brake 1: 8521.27 (Int 32) Index for brake 2: 8521.57 (Int 32) | |
IEC name for brake 1: Parameter.Fcb21BrakeTest.AllowedMovementOnTest IEC name for brake 2: Parameter.Fcb21BrakeTest.AllowedMovementOnTest2 | |
Mechanical backlash | A mechanical backlash can be entered. The value is added internally to the "permitted movement during testing". (in user units) |
Index for brake 1: 8521.28 (Int 32) Index for brake 2: 8521.58 (Int 32) | |
IEC name for brake 1: Parameter.Fcb21BrakeTest.BackSlash IEC name for brake 2: Parameter.Fcb21BrakeTest.BackSlash2 | |
Torque input | Torque for testing the brake An application-specific load torque is taken into account internally by FCB 21 (determined load torque or input at "Load torque"). (in Nm) Default value: 0.000 |
Index for brake 1: 8521.21 (Int 32) Index for brake 2: 8521.51 (Int 32) | |
IEC name for brake 1: Parameter.Fcb21BrakeTest.TestTorqueAbs IEC name for brake 2: Parameter.Fcb21BrakeTest.TestTorqueAbs2 | |
Torque input relative – display value | Displays the converted value of the "torque input". Only the "torque input " without load torque is taken into account here. (in % of nominal motor torque) |
Index for brake 1: 8521.22 (Int 32) Index for brake 1: 8521.52 (Int 32) | |
IEC name for brake 1: Parameter.Fcb21BrakeTest.LoadTorqueRelDisplay IEC name for brake 2: Parameter.Fcb21BrakeTest.LoadTorqueRelDisplay2 | |
Brake release time in DT1 | Current brake release time in DT1 (in s) |
Index: 8355.3 (Int 32) | |
IEC name: Parameter.Brake1.ReleaseTime | |
Brake application time in DT1 | Current brake application time in DT1 (in s) |
Index: 8355.4 (Int 32) | |
IEC name: Parameter.Brake1.ApplicationTime | |
Brake release time | Input of an additional brake release time, e.g. when testing an external brake. FCB 21 compares the setting value with "Brake release time in DT1" and takes the larger value into account internally. (in s) Default value: 0.000 |
Index for brake 1: 8521.33 Index for brake 2: 8521.60 | |
IEC name for brake 1: Parameter.Fcb21BrakeTest.BrakeReleaseTime IEC name for brake 2: Parameter.Fcb21BrakeTest.BrakeReleaseTime2 | |
Brake application time | Input of an additional brake application time, e.g. when testing an external brake. FCB 21 compares the setting value with "Brake application time in DT1" and takes the larger value into account internally. (in s) Default value: 0.000 |
Index for brake 1: 8521.34 Index for brake 2: 8521.61 | |
IEC name for brake 1: Parameter.Fcb21BrakeTest.BrakeApplicationTime IEC name for brake 2: Parameter.Fcb21BrakeTest.BrakeApplicationTime2 | |
Actual values (display of status and test results irrespective of the tested brake) | |
Brake test active | Indicates that the brake test is active. |
Index: 8521.8, Bit0 | |
IEC name: Parameter.Fcb21BrakeTest.Status | |
Brake test aborted | Indicates that an active brake test has been aborted, e.g. by revoking the enable, controller inhibit or fault status. |
Index: 8521.8, Bit1 | |
IEC name: Parameter.Fcb21BrakeTest.Status | |
Load torque determined/specified | Indicates the load torque determined by FCB 21 or specified by the user at "Load torque". (in Nm) |
Index: 8521.11 (Int 32) | |
IEC name: Parameter.Fcb21BrakeTest.LoggedLoadTorque | |
Actual values – brake 1/brake 2 (status and test results of brake 1/2) | |
Test result NOK | Indicates that the brake test has not been passed, e.g. due to excessive movement during the test. |
Index for brake 1: 8521.8, Bit2 Index for brake 2: 8521.8, Bit4 | |
IEC name: Parameter.Fcb21BrakeTest.Status | |
Test result OK | Indicates that the brake test has been passed and the brake has been able to hold the torque. |
Index for brake 1: 8521.8, Bit3 Index for brake 2: 8521.8, Bit5 | |
IEC name: Parameter.Fcb21BrakeTest.Status | |
Apply brake signal INFORMATION: Displayed only if "Activate test for 2 brakes" is active. | Indicates that the brake is applied for testing. |
Index for brake 1: 8521.8, Bit6 Index for brake 2: 8521.8, Bit7 | |
IEC name: Parameter.Fcb21BrakeTest.Status | |
Measured motor torque | Proportion of the total torque generated by the motor during the brake test. (in Nm) |
Index for brake 1: 8521.10 (Int 32) Index for brake 2: 8521.40 (Int 32) | |
IEC name for brake 1: Parameter.Fcb21BrakeTest.LoggedAbsTorque IEC name for brake 2: Parameter.Fcb21BrakeTest.LoggedAbsTorque2 | |
Total torque | Torque with which the brake was tested. (in Nm) |
Index for brake 1: 8521.12 (Int 32) Index for brake 2: 8521.42 (Int 32) | |
IEC name for brake 1: Parameter.Fcb21BrakeTest.LoggedAbsSumTorque IEC name for brake 2: Parameter.Fcb21BrakeTest.LoggedAbsSumTorque2 | |
Measured movement | Movement determined during the brake test. (in user units) |
Index for brake 1: 8521.13 (Int 32) Index for brake 2: 8521.43 (Int 32) | |
IEC name for brake 1: Parameter.Fcb21BrakeTest.MovementOnTest IEC name for brake 2: Parameter.Fcb21BrakeTest.MovementOnTest2 | |
