Vacon X5 User Manual - page 91
X5 AC Drive User’s Manual
Chapter 7: X5 Parameters
DPD00089A
- 89 -
© 2009 Vacon Incorporated All Rights Reserved
600 Current Lim Sel
Default: Fixed Lvls
Range: n/a
Level 2
The X5 drive provides a Current Limit feature. With this feature enabled, the drive’s frequency is automatically reduced
when operating in motoring mode to keep the measured torque within limits. When operating in regenerative mode, the
output frequency can be automatically increased for the same reason. In addition to the current limit parameters that
activate the Current Limit mode, more current limit parameters are available to adjust the drive’s response to the load
demands. The following data values may be assigned to this parameter:
Parameter Value
Description
Fixed Lvls
The fixed levels set in parameters 601, 602, 603 and 604 determine the current limit in each of the
four quadrants of operation.
Vin2
Vin2 analog input sets the current limit value, range 0-200%
Cin
Cin analog input sets the current limit value, range 0-200%
Vin2 Motor
Vin2 analog input sets the motoring current limit value, range 0-200%
Cin Motor
Cin analog input sets the motoring current limit value, range 0-200%
Vin2 F-Mtr
Vin2 analog input sets the FWD motoring current limit value, range 0-200%
Cin F-Motor
Cin analog input sets the FWD motoring current limit value, range 0-200%
Note: Current limit is only available when parameter 501 is set to Linear Auto. If parameter 501 is set to Vector, then
the Current Limiting values will actually be Torque Limiting values.
601 Cur Lim Mtr Fwd
Default: 120%
Range: 5-150%
Level 2
This parameter sets the current limiting point when the drive is in motoring mode in the forward direction. The limit is
expressed as a percentage of the current capacity of the drive.
602 Cur Lim Mtr Rev
Default: 120%
Range: 5-150%
Level 2
This parameter sets the current limiting point when the drive is in motoring mode in the reverse direction. The limit is
expressed as a percentage of the current capacity of the drive.
603 Cur Lim Reg Fwd
Default: 80%
Range: 5-150%
Level 2
This parameter sets the current limiting point when the drive is in regenerative mode in the forward direction. The limit
is expressed as a percentage of the current capacity of the drive.
604 Cur Lim Reg Rev
Default: 80%
Range: 5-150%
Level 2
This parameter sets the current limiting point when the drive is in regenerative mode in the reverse direction. The limit
is expressed as a percentage of the current capacity of the drive.
605 Cur Lim Freq
Default: 3.0 Hz
Range: 0.0 - 400.0 Hz
Level 2
This parameter sets the frequency where current limit becomes active. This value will also be the frequency point the
drive will decelerate the motor to during Motoring Current Limit.
606 Ramp Time CL
Default: 1.0 sec
Range: 0.1-3200.0 sec
Level 2
This parameter determines the ramp rate when the drive enters Current Limit, and defines the ramping rate of the drive
when in a current limiting mode. If the drive is in regenerative current limit, it is an acceleration time. If the drive is in
motoring current limit, it is a deceleration time.
607 Cur Lim Minimum
Default: 10%
Range: 0 - 50%
Level 2
This parameter limits the lowest amount of current (or Torque) limiting that can occur when the limit threshold is
determined by an analog input.
Table 7-2: Description of X5 Parameters (Page 19 of 40)