OMRON Sysdrive 3G3HV - Detector Cooling Section

Note
Note
1. The FI terminal is a current input terminal for 4 to 20 mA. The FI terminal can be a
voltage input terminal by changing the FI input level with n043 and cutting the jumper
wire of the PCB. Do not, however, change the FI terminal to a voltage input terminal
unless the Inverter is used for PID control.
2. Set n042 according to the type of frequency reference.
n043
FI Input Level Selection
Setting range 0, 1 Unit --- Default setting
1
• Set the FI input level with n043 so that the FI terminal will become a
current or voltage input.
Set Values
Set
Description
value
0 Voltage input within a range from 0 to 10 V. Be sure to cut jumper wire J1.
1 Current input within a range from 4 to 20 mA.
Note Do not impose voltage on the Inverter without cutting jumper wire J1 if n043 is set to 0,
otherwise the input resistor of the Inverter will burn out.
Refer to Section 3–5–2. PID Control for the position of the jumper wire.
n044
Analog Frequency Reference Sample Hold Selection
Setting range 0, 1 Unit --- Default setting
Set Values
Set
Description
value
0 Frequency reference on hold is not saved.
1 Frequency reference on hold is saved by n025
• Set n044 when using the analog frequency sample and hold as multifunction
input.
0
n045
Processing Selection when Analog Frequency
Reference is Lost
Setting range 0, 1 Unit --- Default setting
Set Values
• Set n045 to 0 or 1 to determine the operation of the Inverter when the
frequency reference input to the FV or FI terminal drops sharply.
Set
Description
value
0 Inhibits Inverter from processing analog frequency reference loss.
1 Permits Inverter to process analog frequency reference loss.
0
Note
1. Frequency reference loss is a phenomenon resulting in a value drop of a frequency
reference by 90% or more within 0.4 s.
If the Inverter detects frequency reference loss, the Inverter will continue running at a
frequency 20% lower than the previous frequency.