Eurotherm Drives 590 DRV Digital, Product Manual

Page: 121 / 318

Appendix C Setup Parameters
590 DRV Digital DC Drive Product Manual App. C - 14
C
FIELD CONTROL::FLD CURRENT VARS
These variables tune the field current loop with proportional and integral control.
Inputs and Outputs
The inputs to FLD CURRENT VARS are the field current feedback from calibration
and the field weakening current demand from FIELD CONTROL::FLD CURRENT
VARS::FLD WEAK VARS. The output, FLD FIRING ANGLE, is the field current
loop demand for the FIELD CONTROL block.
Description
Tuning PROP. GAIN and INT. GAIN adjusts the response of the field current demand.
For most applications, leave SETPOINT at its default setting of 100%. You may need
to change this value for some applications (for instance, a counter EMF winder).
DIGITAL DC DRIVE
MENU LEVEL
MENU LEVEL
DIAGNOSTICS
MENU LEVEL
SETUP PARAMETERS
SETUP PARAMETERS
RAMPS
SETUP PARAMETERS
AUX I/O
SETUP PARAMETERS
JOG/SLACK
SETUP PARAMETERS
SETUP PARAMETERS
SETUP PARAMETERS
RAISE/LOWER
SPECIAL BLOCKS
FIELD CONTROL
FIELD CONTROL
FIELD ENABLE
FIELD CONTROL
FLD CURRENT VARS
M
M
M
Parameters
Tag Parameter Description Range Default
171 SETPOINT Field current setpoint. 0.00 to 100.00% 100.00%
173 PROP. GAIN Proportional gain adjustment of field current PI loop. 0.00 to 100.00 0.10
172 INT. GAIN Integral gain adjustment fo the field current PI loop. 0.00 to 100.00 1.28