6 Parameter structure
6.4 Control signal terminals
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DC1-S…20…, DC1-S…OE1 Variable Frequency Drives
05/21 MN040058EN
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Select f-Fix4/BUS REF
Used to select between fixed frequency f-Fix4 (P-23) and the setpoint value from
the bus
• Low = f-Fix4
• High = Setpoint value from bus
Select f-Fix4/DIG REF
Used to select between fixed frequency f-Fix4 (P-23) and the digital setpoint
value, which is set with the keypad or with the UP and DOWN commands
• Low = f-Fix4
• High = Digital setpoint value
Select f-Fix4/f-Fix2
Used to select between f-Fix4 and f-Fix2
• Low = f-Fix4
• High = f-Fix2
Select f-Fix4/PI REF
Used to select between fixed frequency 4 (f-Fix4) and the setpoint value from the
PI controller’s output
• Low = f-Fix4
• High = Setpoint value from PI controller output
Select Fire Mode/Normal OP
The fire mode function allows the variable frequency drive to keep running in
emergency situations until it is no longer able to work. When this mode is
selected, drive fault signals will be ignored.
• Low = Fire mode
• High = Normal mode
Select PI REF/AI1 REF
Used to select between setpoint values
• Low = setpoint from the PI controller’s output
• High = AI1
Select PI REF/f-Fix1
Used to select between setpoint values
• Low = setpoint from the PI controller’s output
• High = f-Fix1, set with P-20
Select Quick-dec
If a signal is applied at the corresponding terminal, the drive will stop with the
ramp defined in P-24.
Select t-dec/t-Quick-dec
This command must be present (there must be a high-level signal at the
corresponding terminal) in order to be able to run the variable frequency drive.
If the signal is removed (low level), the unit will immediately do a quick stop with
the ramp defined in P-24.
START
Used to start/stop the drive
If a high-level signal is applied at the corresponding terminal, the drive will
accelerate with the selected ramp. Removing the signal will cause the drive to
stop. In this case, the specific way in which it stops will depend on the value set
for P-05 (stop mode). Once the variable frequency drive stops, it will be locked.
In applications with two operating directions, the directions are selected using
the DIR and INV commands.
UP
Used to increase the speed if a digital setpoint is selected (P-12 = 1 or = 2).
Used together with the DOWN command.
Abbreviation
Meaning
Summary of Contents for PowerXL
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