BENSHAW RSi H2 Series - Setting Operation Command and Frequency; Command Loss Protective Operation

Communications
303
890053-00-02
10.2.3 Setting Operation Command and Frequency
After setting the DRV-06 Cmd Source parameter to ‘3 (Int 485)’ and DRV-07 Freq Ref Src
parameter to ‘6 (Int 485)’, you can set common area parameters for the operation command and
frequency via communication. For details about the operation command, refer to 5.1.3.4 Setting
Operation Command and Frequency on page 106 and for details about the frequency command,
refer to 5.1.4.6 Setting a Frequency Reference via RS-485 Communication on page 116.
To select the built-in RS485 communication as the source of command, set DRV-07 to ‘6 (Int485)’
on the keypad. Then, set common area parameters for the operation command and frequency via
communication.
Group
Code
Name
LCD Display
Parameter Setting
Setting range
Unit
DRV
06
Command
source
Cmd Source
3
Int 485
0–5
-
07
Frequency
setting method
Freq Ref Src
6
Int 485
0–11
-
10.2.4 Command Loss Protective Operation
Configure the command loss decision standards and protective operations run when a
communication problem lasts for a specified period of time.
Group
Code
Name
LCD Display
Parameter Setting
Setting range
Unit
PRT
12
Speed command loss
operation mode
Lost Cmd
Mode
0
None
0–5
-
13
Time to determine
speed command loss
Lost Cmd
Time
6
1.0
0.1–120.0
sec
14
Operation frequency
at speed command
loss
Lost Preset F
0.00
0.00, Low
Freq–High
Freq
Hz.
Command Loss Protective Operation Setting Details
Code
Description
PRT-12
Lost Cmd Mode
PRT-13
Lost Cmd Time
Select the operation when a communication error has occurred and has
lasted longer than the time set at PRT-13.
Setting
Function
0
None
The speed command immediately becomes the
operation frequency without any protection function.
1
Free-Run
The inverter blocks output. The motor performs in
free-run condition.
2
Dec
The motor decelerates and then stops.
3
Hold Input
Operates continuously with the speed of the inputted
speed command until the loss of the speed command.
The inverter calculates the average input value for 10