ACS350_ACCESS_dc¶
Function Block ACS350_ACCESS_dc
| Available as of PLC runtime system | V1.2 |
| Included in library | ACS350_MC_support_AC500_V11.lib |
| Type | Function Block without historical values |
To make this Function Block work, the following additional information should be considered:
Realization with ACS35x on PROFIBUS-DP network
Realization with ACS35x on PROFIBUS-DP network
The Function Block ACS350_ACCESS_dc is used as driver unit for PLCopen Function Blocks with ACS35x in decentralized motion control.
During normal operation, the drive will be completely controlled by the fieldbus interface. For safety reasons, this could be combined with additional measures through binary inputs on the drive. So the drive would be in defined state when the fieldbus is not yet initialized or in case of communication problems. For coordination, the inputs EN_OFF1, EN_OFF2 and EN_OFF3 are available at the driver unit Function Block ACS350_ACCESS_dc. When the fieldbus interface is ok (shown by ERR_REMOTE=FALSE) EN_OFF1, EN_OFF2 and EN_OFF3 should be switched to “true” before the MC_Power Function Block is enabled. When an emergency stop should be executed, the sequence depends on the required Stopping mode. (Details could be found in the drive manual.) The priority of the signals is as follows:
EN_OFF2 >EN_OFF3> EN_OFF1
Do the following to power off:
Set EN_OFF1 or EN_OFF2 or EN_OFF3 or a combination to “false”, depending on required stop mode. This will already reset the internal power-on statemachine to the respective state and change the signals in the fieldbus CW. In addition, disable the MC_POWER Function Block. A sequence for these 2 actions is not required, but the MC_POWER will show an error message when it is not disabled while the drive is already stopped.