Input Terminal Functions
6-53
îš‹ Blocking the Inverter Output (Baseblock Command)
Set 8 or 9 (Baseblock command NO/NC) in one of the parameters H1-01 to H1-05 (terminal S3 to S7 function
selection) to perform baseblock commands and thereby to block the inverter output.
Clear the baseblock command to restart the operation using the speed search method set in b3-01 (speed
search selection). Otherwise the Inverter may trip as it will start at the same frequency reference again.
Multi-function Digital Inputs (H1-01 to H1-05)
îš„Time Chart
The time chart when using a baseblock command is shown below.
Fig 6.42 Baseblock Commands
îš‹ Multifunction Analog Input A2 Disable/Enable
If a digital input is programmed to setting C the analog input A2 can be enabled or disabled by switching the
digital input.
Multi-function Digital Inputs (H1-01 to H1-05)
Set Value Function
8 External baseblock NO (ON: Inverter is baseblocked)
9 External baseblock NC (OFF: Inverter is baseblocked)
IMPORTANT
When a contactor between inverter and motor is used, always perform a base block command before
opening the contactor.
Set Value Function
C Multi-function analog input A2 enable (ON: A2 is enabled)
Forward operation/Stop
Baseblock command
Input
Cleared
Frequency reference
Output frequency
Speed search
Coast to a stop
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