3 Control signal terminals
3.1 Correspondence between inputs/outputs and terminals
DC1…E1 Variable Frequency Drives
11/16 MN040022EN
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15
Select f-Fix/f-max
Used to select between a fixed frequency and the maximum speed set with P-01.
• Low = Fixed frequency
• High = maximum speed
The fixed frequency itself is selected with the Select f-Fix Bit0 or Select f-Fix Bit1 commands.
Select f-Fix2/f-Fix4
Used to select between f-Fix2 and f-Fix4
• Low = f-Fix2
• High = f-Fix4
Select f-Fix4/AI1 REF
Used to select between f-Fix4 and the analog setpoint value (terminal 6)
• Low = f-Fix4
• High = Analog setpoint value
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 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.
START INV
In applications in which the keypad is used to set a setpoint value: When the START command is issued, the drive
will start running in the operating direction that was last selected. If START INV is used to start the drive, the drive
will run in the opposite direction.
UP
Used to increase the speed if a digital setpoint is selected (P-12 = 1 or = 2). Used together with the DOWN
command.
Abbreviation
Significance
Summary of Contents for Cutler Hammer PowerXL DC1 E1 Series
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