Parker 590 series - SPEED LOOP

Programming Your Application 6-51
590 Series DC Digital Converter
SPEED LOOP
This function block contains parameters
for setting-up the speed loop. The block
is viewed in two menus on the MMI.
SETPOINTS
This MMI menu contains the setpoint
parameter reference inputs for the
function block.
MMI Menu Map
1
SETUP PARAMETERS
2
SPEED LOOP
PROP. GAIN
INT. TIME CONST.
INT. DEFEAT
ENCODER SIGN
SPEED FBK SELECT
MMI Menu Map
1
SETUP PARAMETERS
2
SPEED LOOP
3
SETPOINTS
SETPOINT 1
SIGN 2 (A3)
RATIO 2 (A3)
SETPOINT 2 (A3)
SETPOINT 3
SETPOINT 4
MAX DEMAND
MIN DEMAND
SPEED LOOP
–
OUTPUT [356]
–
0.00%
–
SPEED FEEDBACK [207]
–
0.00%
–
SPEED SETPOINT [ 63]
–
0.00%
–
SPEED ERROR [297]
–
0.00%
10.00
–
[ 14] PROP. GAIN
–
0.500 SECS
–
[ 13] INT. TIME CONST.
–
OFF
–
[202] INT. DEFEAT
–
POSITIVE
–
[ 49] ENCODER SIGN
–
ARM VOLTS
–
[ 47] SPEED FBK SEL
–
0.00%
–
[289] SETPOINT 1
–
POSITIVE
–
[ 9] SIGN 2 (A3)
–
1.0000
–
[ 7] RATIO 2 (A3)
–
–
SETPOINT 2 (A3) [290]
–
0.00%
0.00%
–
[291] SETPOINT 3
–
0.00%
–
[ 41] SETPOINT 4
–
105.00%
–
[357] MAX DEMAND
–
-105.00%
–
[358] MIN DEMAND
–
Parameter Descriptions
PROP. GAIN
Range: ENABLED/DISABLED
Speed loop PI proportional gain adjustment.
INT. TIME CONST.
Range: 0.001 to 30.000 SECS
Speed loop PI integral gain adjustment.
INT. DEFEAT
Range: ON/OFF
Inhibits the integral part of the speed loop PI control to give proportional only control.
ENCODER SIGN
Range: POSITIVE/NEGATIVE
Since the encoder feedback cannot be reversed electrically, the signal polarity can be reversed by
the control software.
SPEED FBK SELECT
Range: See below
Four options are available:
i) Armature voltage feedback
ARM
VOLTS
ii) Analog tachogenerator feedback
ANALOG
TACH
iii) Encoder feedback
ENCODER
iv) Analog / Encoder feedback
ENCODER
/ ANALOG
SETPOINT 1
Range: -100.00 to 100.00 %
Speed Setpoint 1 (Default Setpoint Sum 1 O/P).
SIGN 2 (A3)
Range: POSITIVE/NEGATIVE
Speed Setpoint 2 Sign.