Parker 690+ series, Product Manual

Page: 43 / 242

Programming Your Application
1-35
690+ Series Frequency Inverter
FEEDBACKS
Designed for all Motor Control
Modes.
The FEEDBACKS block allows you
to view speed feedback and motor
current related diagnostics. It also
allows you to setup the encoder
parameters, if one is fitted. These are
ENCODER SUPPLY, ENCODER
LINES, ENCODER INVERT and
ENCODER MODE. An encoder
requires the Speed Feedback
Technology Option - refer to the
Installation Product Manual, Chapter
3: “Technology Options”.
MMI Menu Map
1 SETUP
2 MOTOR CONTROL
3
FEEDBACKS
ENCODER SUPPLY
ENCODER LINES
ENCODER INVERT
ENCODER MODE
QUADRATIC TORQUE
DC LINK VOLTS
TERMINAL VOLTS
SPEED FBK RPM
SPEED FBK REV/S
SPEED FBK %
ENCODER FBK %
ENCODER COUNT
TORQUE FEEDBACK
FIELD FEEDBACK
MOTOR CURRENT &
MOTOR CURRENT A
Feedbacks
– DC LINK VOLTS [ 75] – 0 V
– TERMINAL VOLTS [1020] – 0 V
– SPEED FEEDBACK
RPM
[569] – 0.00 rpm
–
SPEED FBK REV/S [568]
–
0.00 rev/s
– SPEED FEEDBACK % [749] – 0.00 %
– ENCODER FBK % [1238] – 0.00 %
– ENCODER COUNT [1016] – 0
– TORQUE FEEDBACK [ 70] – 0.00 %
– FIELD FEEDBACK [ 73] – 0.00 %
– MOTOR CURRENT % [ 66] – 0.00 %
–
MOTOR CURRENT [ 67]
–
0.0 A
** 10.0 V – [761] ENCODER SUPPLY –
** 2048
–
[566] ENCODER LINES
–
**FALSE – [567] ENCODER INVERT –
QUADRATURE – [565] ENCODER MODE
**FALSE – [ 50] QUADRATIC TORQUE –
Parameter Descriptions
ENCODER SUPPLY
Range: 10.0 to 20.0V
Set this approximately to the supply voltage required by the Tech Box encoder, if supported.
ENCODER LINES
Range: 250 to 32767
The number of lines must be set to match the type of encoder being used. Incorrect setting of
this parameter will result in an erroneous speed measurement.
ENCODER INVERT
Range: FALSE/TRUE
Used to match the encoder direction to the motor direction. When TRUE, it changes the sign
of the measured speed and the direction of the position count.
It is necessary to set up this parameter when in CLOSED-LOOP VEC mode, as the encoder
direction must be correct for this mode to operate.
ENCODER MODE
Range: Enumerated-see below
This parameter defines the type of encoder being used. If the System Board option is fitted,
this parameter must be set to QUADRATURE.
Enumerated Value : Encoder Mode
0 : QUADRATURE
1 : CLOCK/DIR
2 : CLOCK
QUADRATIC TORQUE
Range: FALSE/TRUE
When TRUE, selects QUADRATIC allowing higher continuous ratings with less overload
capability. Quadratic Torque operation is especially suited to fan or pump applications.
When FALSE, selects CONSTANT duty.
DC LINK VOLTS
Range: —. V
This shows the voltage on the dc link capacitors.
TERMINAL VOLTS
Range: —. V
This shows the rms voltage, between phases, applied by the inverter to the motor terminals.
This should be 90% of MOTOR VOLTS at base speed if the motor is unloaded.
SPEED FEEDBACK RPM
Range: —.xx rpm
This parameter changes according to the CONTROL MODE (MOTOR DATA function
block):
•
In CLOSED-LOOP VEC mode the parameter shows the mechanical speed of the motor
shaft in revolutions per minute as calculated from the Encoder Technology Box.
•
In SENSORLESS VEC mode the parameter shows the calculated mechanical speed of the
motor shaft in revolutions per minute.