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Type: |
Function |
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Available as of: |
SystemInterface_1.33.10.0 |
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Versions: |
Current version |
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Supported devices: |
Lexium LXM62 Power Supply, Lexium 52 |
Discharging the DC bus. This function is used with PowerSupplies or drives with integrated power supply.
This function block enforces a discharge of the DC bus.
Enable = TRUE
The ready contact is opened and the DC bus is discharged. The DC bus is not charged again until Enable is set to FALSE.
Enable = FALSE
The discharge is disabled. The ready contact is closed and the DC bus may be charged.
The discharging process can only be started if:
No detected errors are pending for the device which lead to the opening of the ready contact
The device is not enabled (PowerSupplyCheck or ControllerEnable are FALSE)
The allocated drives are not being controlled if an LXM 62 PS is used (ControllerEnable is FALSE for the allocated drives)
The DC bus is charged
Sercos is in phase 4
The discharge process can take more than 100 ms. Therefore, the FC_DcBusDischargeState function can be used to check when the discharge was completed.
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Input |
Data type |
Description |
|---|---|---|
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i_sDeviceId |
ST_LogicalAddress |
logical address of the device |
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i_xEnable |
BOOL |
TRUE = DC bus is being discharged FALSE = discharging disabled (DC bus is being charged) |
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Data type |
Description |
|---|---|
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DINT |
0: Discharging disabled 1: Preparing discharge process 2: DC bus is being discharged 3: DC bus was discharged successfully -1: Incorrect logical address -2: Discharging cannot be started because the drives are still being controlled. -3: Discharging cannot be started because the device is enabled (PowerSupplyCheck = TRUE or ControllerEnable = TRUE). -4: Discharging cannot be started because the device has detected an error which leads to the opening of the ready contact. -5: Discharging cannot be started because the DC bus is not charged. -6: Discharging not possible -461: Incorrect Sercos phase |