Yaskawa Matrix Converter - Manual (Page 233)

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‹ Blocking MxC Outputs (Baseblock Commands)
Set 8 or 9 (Baseblock Command NO/NC) in one of the parameters H1-01 to H1-10 (Terminal S3 to S12 Func-
tion Selection) to perform Baseblock Commands using the terminal's on/off operation, and prohibit MxC out-
put using the Baseblock Commands.
Clear the Baseblock Command to restart the operation using speed search from frequency references from the
previous Baseblock Command input.
Multi-Function Digital Inputs (H1-01 to H1-10)
„ Time Chart
The time chart when using Baseblock Commands is shown below.
Fig 6.49 Baseblock Commands
Set
Value
Function
Control Methods
V/f
Open
Loop
Vector
Flux
Vector
8 External baseblock NO (NO contact: Baseblock at on) Yes Yes Yes
9 External baseblock NC (NC contact: Baseblock at off) Yes Yes Yes
IMPORTANT
If using Baseblock Commands with a variable load, do not frequently input Baseblock Commands during run,
as this may cause the motor to suddenly start coasting, and may result in the load falling or slipping.
Forward operation/Stop
Baseblock command
Frequency reference
Output frequency
Input Cleared
Search from stored frequency reference
Hold
off on