Parker 590 series - Page 105

Programming Your Application 6-15
590 Series DC Digital Converter
I DMD. ISOLATE
Range: ENABLED/DISABLED
Speed loop bypass; the current demand is taken from ANIN 2 (A3).
The simplified diagram below shows how the I DMD ISOLATE parameter selects the controlling
loop.
SPEED LOOP PI
CURRENT LOOP PI
Speed Demand
Speed Feedback
Analog I/P2 (A3)
Digital I/P3 (C8)
I DMD ISOLATE
Current Demand
Current Feedback
Motor
shown ENABLED
+
-
+
-
AUTOTUNE
Range: ON/OFF
This is the autotune function trigger input.
ILOOP SUSPEND
Reserved parameter for use by Parker SSD Drives.
AT CURRENT LIMIT
Refer to the DIAGNOSTICS function block description, page 6-
18.
CURRENT FEEDBACK
Refer to the DIAGNOSTICS function block description, page 6-
18.
CURRENT DEMAND
Refer to the DIAGNOSTICS function block description, page 6-
18.