100
SPX advanced – description of parameters
SPX ADVANCED APPLICATION MANUAL
SVCH0203—October 2017 www.eaton.com
Code
ID
Parameter
Notes
P1.6.5.4
1267
Brake chopper level “BrakeChopperLevel”
Brake chopper control activation level in volt. This parameter is active when
“OverVolt.Ref.Sel” is 2/“BrakeChLevel”
For 400V Supply:
400*1.35*1.18 = 638V
For 500V Supply:
500*1.35*1.18 = 808V
For 690V Supply:
690*1.35*1.18 = 1100V
P1.6.5.5
608
Undervoltage controller ”undervolt contr”
Overvoltage reference level depending on the status of the brake chopper. In closed
loop control, the overvoltage controller level is adjusted by “OverVoltageRef.”
The parameter can be found in the CL setting parameter group.
0 “Off” – Controller switched off
Both open and closed loop overvoltage controllers are off.
1 “On:NoRamping” – Activated PI-Controller type operation
Both open and closed loop controllers are activated.
If power comes back while drive is at under voltage the controller output frequency
will regain the reference value.
2 “On: Ramping” – PI controller type and ramping down.
Both open and closed loop controllers are activated.
If power comes back after under voltage controller has been active, drive will ramp
to zero speed using ramp time 2 and generate an under voltage fault (F9) with sub
code S3.
In closed loop control, also
parameter “CLrmpFollEncFreq”
needs to be activated to achieve
identical operation.
P1.6.5.6
1537
Under voltage reference select ”UnderVoltRef.Sel”
Select the operation level for open loop under voltage controller.
0 “UnderVoltRef”
Under voltage operation level is select with P1.6.5.7
1. “0,8 * Estimated DC Voltage”
Automatic DC voltage level
P1.6.5.7
1538
Under Voltage Reference OL ”UnderVoltage Ref”
Set the operation level for open loop under voltage controller when P1.6.5.6 is 0/
UnderVoltageRef.
Code
ID
Parameter
Notes
P1.6.5.8.1
1528
Overvoltage reference “OverVoltageRef.”
Defines the overvoltage reference level in Closed Loop control mode. Percentage value
related to unit nominal voltage DC voltage. Default 118 %.
690 Vac * 1,35 * 118 % = 1099 Vdc
500 Vac * 1,35 * 118 % = 796 Vdc
P1.6.5.8.2
Overvoltage controller motoring torque limit
Defines motoring torque limit, when drive is operating under over voltage controller.
P1.6.5.8.3
CL Under voltage reference
Defines the under voltage reference level in Closed Loop control mode. Percentage
value related to unit nominal voltage DC voltage. Default 65 %.
690 Vac * 1,35 * 65 % = 605 Vdc
500 Vac * 1,35 * 65 % = 438 Vdc
5.6.5.1 CL Settings
5.6.6 Limit controls
Code
ID
Parameter
Notes
P1.6.6.1
1901
Limit total current “LimitTotalCurrent”
This function activates the total current limit function in close loop control. Normally in
closed loop the current limit only affects the torque producing current.