CMC 30 HP30 Installation And Operation Instruction Manual page 128

Chapter 6 - Parameter Description [I/O]
This is the filtering time constant for 'I' signal input. If the 'I'
signal is affected by noise causing unstable operation of
the inverter, increase this value. Increasing this value
makes response time slower.
I/O► I curr x1
07 4.00 mA
Factory Default:
4.00 mA
This is the minimum current of the 'I' input at which inverter
outputs minimum frequency.
I/O► I freq y1
08 0.00 Hz
Factory Default:
0.00 Hz
This is the inverter output minimum frequency when there
is minimum current (I/O-07) on the 'I' terminal.
I/O► I curr x2
09 20.00 mA
Factory Default:
20.00 mA
This is the maximum current of the 'I' input at which
inverter outputs maximum frequency.
I/O► I freq y2
10 60.00 Hz
Factory Default:
60.00 Hz
This is the inverter output maximum frequency when there
is the maximum current (I/O-09) on the 'I' terminal.
Reference Frequency
I/O-10
I/O-08
I/O-07
[Reference Frequency vs. Analog Current Input, I (4 to 20mA)]
07 4.00
4.00
08 0.00
0.00
09 20.00
20.00
10 60.00
60.00
Analog Voltage
Input (V1)
I/O-09
Related Functions: DRV-04 [Frequency Mode]
FU1-20 [Maximum Frequency]
I/O-11: Criteria for Analog Input Signal Loss
I/O► Wire broken
11 None
Factory Default:
None
This is to set the criteria for analog input signal loss when
DRV-04 [Frequency Mode] is set to 'V1', 'I' or 'V1+I'.
Following table shows the setting value.
Setting Range
LCD 7-Seg
None
0
half of x1
1
below x1
2
When the analog input signal is lost, inverter displays the
following table.
Setting Range
LCD 7-Seg
LOP
LP
LOR
LR
LOV
LV
LOI
LI
LOX
LX
Related Functions: I/O-48 [Lost command] selects the
operation after determining the loss of frequency reference.
6-36
11
Description
Does not check the analog input
signal.
The inverter determines that the
frequency reference is lost when the
analog input signal is less than half of
the minimum value (I/O-02 or I/O-07).
The inverter determines that the
frequency reference is lost when the
analog input signal is less than the
minimum value (I/O-02 or I/O-07).
Description
Loss of frequency reference from Option
Board (DPRAM time out)
Loss of frequency reference from Option
Board (Communication fault)
Loss of analog input signal, V1
Loss of analog input signal, I
Loss of frequency reference from Sub-
Board, V2 or ENC
0
0