Chapter 10 Protective Functions
10-7
Cx2000 AC Drive
10.7 Speed command loss
Group
Code Parameter
Set Value Range
Initial Unit
I/O Group
I16
Select criteria for analog
speed command loss
0
0 ~ 2
0
I62
Drive mode select at loss
of speed command
-
0 ~ 2
0
I63
Wait time after loss of
speed Command
-
0.1 ~ 120.0 1.0
Sec
I55
Multi-function relay select 11
0 ~ 19
17
Select the Drive mode when frequency reference set via Analog (V, I) input te
rminal or communication option is lost.
I16 Select criteria for analog speed command loss
I16
Select criteria for a
nalog speed
command loss
0
Not used
1
When half the value set in I2, I7, I12
is Entered
2
When less than the value set in I2,
I7, I12 is entered
Ex 1) The inverter determines the freq reference is lost when DRV- Frq is
set to 3 (Analog V input), I 16 to 1 and analog input signal is less
than half the value set in I 7.
Ex 2) The inverter determines the freq reference is lost when DRV- Frq is
set to 5 (V2+I), I16 to 2 and V2 input signal is either below the value
set in I2 or I input value is less than the I 12 value.
I62: When no frequency command is given for the time set in I63, set the drive
mode as the table below.
I62
Drive mode select
after loss of
frequency command
0
Continuous operation with the frequ
ency before command loss occurs
1
Free run stop (output cut off)
2
Decel to stop
I55: Multi-function relay is used to output information on loss of frequency
command to external sequence.
Ex) when I16 is set to 2, I62 to 2, I63 to 5.0 sec and I55 to 11, respectively
Summary of Contents for C*2000 Series
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