Operating the Converter
4-9
590 Series DC Digital Converter
WARNING!
Only continue with the set-up instructions if this test is completed satisfactorily.
13
If the drive has run satisfactorily
without any need for reconnection of
the field or
tachogenerator but the direction of rotation is wrong, open the main contactor and disconnect
all supplies.
13.1
Analog
Tachogenerator:
Reverse both field and tachogenerator connections.
13.2
MICROTACH/Encoder:
Reverse the
field, re-establish
the auxiliary
supply and
reverse
the ENCODER SIGN parameter.
IMPORTANT:
When satisfactory operation has been achieved, perform a PARAMETER SAVE. Refer to
Chapter 5: “The Man-Machine Interface (MMI)” - Saving Your Application.
14
With the
MAIN CURR.LIMIT
parameter set
to
20% or
the
level
required
to
achieve
rotation, set the Speed Setpoints so that the value of the SPEED SETPOINT is about 10%,
1.0V at setpoint input (Terminal A8). The motor will accelerate to this speed setting.
14.1
4 Quadrant Drives which require reverse rotation:
Alter the Speed Setpoints so that the value of the SPEED
SETPOINT parameter is about -10% and check that motor
runs in the reverse direction.
14.2
Adjustment of ZERO SPEED OFFSET parameter:
4 Quadrant, non-reversing drives
Set the
Speed Setpoint potentiometer to
zero and
adjust the ZERO SPEED OFFSET parameter for
minimum shaft rotation.
2 Quadrant, non-reversing drives
Set the Speed Setpoint potentiometer to
zero and adjust the ZERO SPEED
OFFSET parameter
until the
shaft is
just rotating
then reduce
level until the
shaft stops.
4 Quadrant, reversing drives
Set the ZERO SPEED OFFSET parameter to
balance maximum speed in
forward
and reverse
directions.
You can also set the STANDSTILL LOGIC parameter to
ENABLE if a stationary shaft is required.
15
Gradually increase the Speed Setpoints so that the value of the SPEED SETPOINT
(DIAGNOSTIC menu) is at maximum. Check the shaft speed
is
correct.
If fine adjustment is required adjust the calibration as appropriate to
the speed feedback selection:
•
Armature Voltage feedback
has
a +2/-10%
trim, greater
changes
outside
this
range require re-setting of the calibration switches.
•
Analog Tachogenerator has a
+
2
/-
10% trim, greater changes
outside this range require
re-setting of the calibration switches.
•
The MICROTACH/Encoder
should
give an
absolute
rotational speed
for
which
adjustment
is unnecessary
however the
motor speed
may not
be the
relevant factor thus
speed
of
rotation
can
be
altered
by
simply
adjusting
the calibration.
MMI Menu Map
1
SETUP PARAMETERS
2
SPEED LOOP
ENCODER
SIGN
MMI Menu Map
1
DIAGNOSTICS
SPEED
SETPOINT
MMI Menu Map
1
SETUP PARAMETERS
2
CALIBRATION
ZERO
SPD.OFFSET
MMI Menu Map
1
SETUP PARAMETERS
2
STANDSTILL
STANDSTILL
LOGIC
MMI Menu Map
1
SETUP PARAMETERS
2
CALIBRATION
ARMATURE V CAL.
ANALOG TACH CAL.
ENCODER
RPM
Summary of Contents for 590 series
Page 12: ...605 Frequency Inverter HA389591 Issue 1 Contents Contents Page Cont 12...
Page 16: ...1 4 Getting Started 590 Series Digital Converter...
Page 22: ...2 6...
Page 64: ...3 42 Installing the Converter 590D DC Digital Converter HA467078...
Page 82: ...4 18 Operating the Converter 590 Series DC Digital Converter...
Page 90: ...5 8 The Man Machine Interface MMI 590 Series DC Digital Converter...
Page 168: ...9 6 Control Loops 590 Series DC Digital Converter...
Page 222: ...13 14 Standard and Optional Equipment 590 Series DC Digital Converter...
Page 234: ...15 2 The Default Application 590 Series DC Digital Converter...
Page 242: ......
