Blocking Inverter Outputs (Baseblock Commands) - Omron SYSDRIVE RV Series User Manual

Blocking Inverter Outputs (Baseblock Commands)

Set 8 or 9 (Baseblock command NO/NC) in one of the parameters H1-01 to H1-06 (multi-function contact
input terminal S3 to S8 function selection) to perform baseblock commands using the terminal's ON/OFF
operation, and prohibit Inverter output using the baseblock commands. At this time, the motor will be coasting
and "BB" will blink on the Digital Operator.
Clear the baseblock command to restart the operating using speed search from frequency references from the
previous baseblock command input.
Multi-function Contact Inputs (H1-01 to H1-06)
Setting
Value
8 External baseblock NO (NO contact: Baseblock at ON)
9 External baseblock NC (NC contact: Baseblock at OFF)
Time Chart
The time chart when using baseblock commands is shown below.
Forward operation/Stop
IMPORTANT
-82
6
Baseblock command
Frequency reference
Output frequency
Fig 6.49 Baseblock Commands
If using baseblock commands with a variable load, do not frequently input baseblock commands during oper-
ation, as this may cause the motor to suddenly start coasting, and may result in the motor falling or slipping.
Function
Input Cleared
Search from stored frequency reference
Hold
Control Methods
Open
V/f Flux
Loop
V/f with Vec-
Vec-
PG tor
tor
Yes Yes Yes Yes
Yes Yes Yes Yes