YASKAWA Varispeed-505WII User Manual
Varispeed-501)W11
INDUSTRIAL
USE
THYRISTOR
CONVERTER
UNITS
Before
initial
operation,
read
these
instructions
thoroughly,
and
retain
for
future
reference
.
When
properly
installed,
operated
and
maintained,
this
unit
will
providealifetimeofoptimum
operation.It
is
mandatory
that
the
person
who
operates, inspects,
and
maintains
this
equipment
thoroughly
reads
and
understands
this
manual
andhasinhis possession
at
all
time
.
IMPORTANT
.
Make
no
withstand
voltage
testonthe
VS-505WII
because
it
incorporates
semi-conductor
electronic
circuits
.
.Ifinsulation resistance
tests
are
neccessary,
make
them
onlyinaccordance
with the
instructions
given
in
this
manual
.
682-215
Type
CDMR-W11
Type
CDMR-WIL
(Type
S)
(Type
L)
460
V,
105
A
460
V,
420
A
CONTENTS
682-234
.
Do
not
tamper
with
potentiometersofthe
power
units
since
they
were
preset
at the
factory
before
shipment
.
Varispeed-505W11
(VS-505WII)isa
thyristor
converter
unit
for
varispeed
reversible
operation
of
industrial
DC
motors
.
For
correct
operationofVS-505WII,
users
must
thoroughly read these
instructions
.
This
manualisalso
necessary
for
maintenance
and
troubleshooting,
and
threfore
should
be kept
filed
for
ready
reference
.
For
detailsonDC
motors,
referto"Instructions
for
IndustrialDCMotors"
(TOE-C435-3B)
.
Type
CDMR-W11
(Type
M)
230
V,
260
A
682-227
RECEIVING........
. . . .
3
Interconnections...........4
MAINTENANCE
. . . . . . . .
10
STORAGE............ . .
3
Cautions
when
Wiring
. . . . . .
4
Periodic
Inspection
. . . . . .
.
10
LOCATION
. . ...........
3
TEST
RUN..............
5
Parts
Replacement
. ......10
INSTALLATION.........3
Check
before
Test
CautionsinReplacing
WIRING
. . . . ............3
Run
.
. . . . . ... . . . . . ..... .
5
Control
Board
. . . . . . . . ...
14
Component
Arrangement
No-Load
Operation........
6
Troubleshooting
Guide
.
...
14
in
VS-505WH.... . . . . . . . .
3
Full-Load Operation
. . . . -
6
SPAREPARTS
. ..... . . . .
15
Terminal
Sizes
and
Carrying
Currents
. . ... . ...
4
Adjustment
.
. . .......
.
. . .
6
REFERENCE..........
. .
16
RECEIVING
or
missing
.
STORAGE
If
the
equipment
is
temporarily
stored
or
ma-
chine stops
foranextended
length
of
time,
the
following
precautions
should
be
taken
.
LOCATION
Store
the
equipment
under
the
following
condi-
tions
.
"
Free
from
rainfall
and
drops
of
water
"
Clean
and dry
(a)
Control
Circuit
"
Free from
corrosive
gas
and
liquid
"
Ambient
temperature:OOC
to400
C
WIRII4G
Make
wiring
in
reference
to
the
interconnection
diagram
furnished
on your
order
and
the
follow-
ing
.
COMPONENT
ARRANGEMENT
IN
VS-505
W
II
Figs.1to3
show
component
arrangement
in
the
VS-505WII
.
NAMEPLATE
"CAUTIONS
I
NOPERA-
TION"
CONTROL
SUPPLY
VOLTAGE
SELECTOR
TAP
POWER
CIRCUIT
BOARD
(2PCB)
(a)
Control
Circuit
Fig.1
Type
CDMR-WI[,
-S,
(460V,115
A)
(b)
Main
Circuit
CONTROL
CIRCUIT
BOARD
(1PCB)
THYRISTOR
CONNECTOR
POWER
CIRCUIT
COOLING
BOARD
(2PCB)FAN
MAIN
CIRCUIT
EXTERNAL
TERMINAL
(b)
Main
Circuit
Fig
.
2
Type
CDMR-WII,
-1V[
(230
V,
260 A)
THYRISTOR
PROTECTIVE
FUSE
(2
FOR
220
V
CLASS,3FOR
440
V
CLASS)
THYRISTOR
PROTECTIVE
FUSE
(2
FOR
220
V
CLASS,3FOR
440VCLASS)
The
equipment
has
been
put
through
severe
testsatthe
factory
before
shipped.After
un-
packing,
however,
check
and
see the
following
.
"
Less
vibration
INSTALLATION
"
Its
nameplate
data
meets
your
requirements
.
"Ithas
sustained
no
damage
whileintransit
.
Select.alocation
described
in
STORAGE
and
in-
"
Fastening
bolts
and
screws are
not
loosened
.
stall
the
equipment
by proper
procedure
in
keep-
"
Devices
builtinthe cabinet are not
damaged
ing the
equipment
in
good
working
condition
.
WIRING
(Cont'd)
4
TERMINAL
SIZES
AND
CARRYING
CURRENTS
Table1shows
the
size
and
the current
earring
capacities
of
the
terminals
of
VS-505WII
.
Select
leads
with
sufficient
current
carrying capacity.Referto"Cautions
when
Wiring"
.
Table
1
Terminal
Size
and
Current
Capacity
Notes
-
Terminal
size
other
than
listed
above
is
M4
and
current
capacityis2Aor
below
.
Ruleofthumb
ofACmain
circuit
power
capacity
1
.2XF
XEXI
(VA)
E
:Supply
voltage
I
:AC
main
circuit
current
SURGE
ABSORBERS
Control
Circuit
(b)
Power
Circuit
Fig.3
Type
CDMR-WII
:,
-L
(460
V,
420
A)
INTERCONNECTIONS
Make
connections
of
VS-505WII
with
associate
units
according
to
the
interconnection
diagram
separately
furnished
.
CAUTIONS
WHEN
WIRING
Main
Circuits
Use
600VPVC
insulated
wires
or
cabtyre
cables
with
the
current
carrying
capacities
of
the
com-
bined
DC
motor
for
AC
main
circuit
terminals
(U,
V, W)
and
DC
main
circuit
terminals
(P,
N)
.
Field
Circuits
Signal
Circuits
MAIN
CIRCUIT
EXTERNAL
TERMINALS
Use
600VPVC
insulated
wires
or
cabtyre
cables
with
the
current
carrying
capacities
of
the
com-
bined
DC
motor
for
field
power
circuit
terminals
(Uo,
Wo,U1,
Wl)
and
field
circuit
terminals
(J,
K)
.Use
stranded
wires
of
cross-section
5.5
mm2or larger
for
field
circuit
terminals
(J,K).
Use
shielded
wires
or
twisted
wires
of
twisting
pitches
20
mm
or
smaller
for
the
speed
setting
circuit
terminals
(6 to 10),speed
feedback
ter-
minals
(2,
3),
tachometer
circuit
terminals
(50
to
52)
.
Fig.4
Pitch
of
Twisted
Wire
AC
Main
DC
Main
Field
CDMR-W11
Circuit Circuit
Circuit
Car- Car- Car-
RatedRated
Ter
-
ryingTer- ryingTer-
rying
Volt-
Out-
minal
Cur-
minal
Cur-
minal
Cur-
age
e
put
rent
Size rent
Size
rent
V
kW
A A
A
25
M4
21
M
5 25
35
M8
29
M8
35
45
M8
37
M8
45
M4
12
90
M8
74
M8
90
230
105
M8
86
M8
105
180
M10
147
M10
180
M4
22
260
M10
213
M10
260
420
M12
343
M12
420
M4
25
550
-M12
449
M12
.550
50
M8
41
M8
50
90
M8
74
M8
90
M4
12
105
M8
8
'M8
105
460 180
M10
147
M10
180
M4
22
260
M10
213
M10
2&0
420
M12
343
M12
420
M4
25
550
M12
449
M12
550
Separation
of
Signal
Cables
from Main
Circuit
Cables
To
avoid
inductive
interference
from
other
cables,
run
the
shieldedor
twisted
wires
(1to55)
separatefrommain
circuit
cables(U,V,W;
Uo,
WO
;
U1,
W1;P,N;J,
K)
inabundle
or
thruaduct
.
CAUTION
After
wiring,
check
interconnections
.
Make
in-
sulation
resistance
tests
usinga500Vmegger
.
Connect
VS-505WIE
main
circuit
terminals
(U,
V,
W
;
Uo,W
o
;
U1,
W
1
;
P,
N;J,
K)
with
common
lead.Measure
the
insulation
resistance
between
common
lead
and
the
ground
.
When
the
test
result
is
2
MSZ
or
more,
it
means
that wiring
is
good
.
TEST
RUN
When
the
VS-505WIL
has
been
correctly
installed
and
wired,
the
unit shall
be
tested
through
a
test
run
as
follows
.
If
trouble
is
foundduring
the
test
run,
re-
ferto"Check
Before
Test
Run"
and
"Trouble-
shooting
Guide"
for
necessary
measures
.
If
the
cause
of
the
trouble
cannot
be
located,
or
repair
is
impossible,
notify
our
service
station,
giving
the
detailsoftrouble
conditions
.
CHECK
BEFORE
TEST
RUN
Make
the
following
checks
prior
to
the
test
run
.
Table
2
Check
before
Test
Run
*
VS-
505WEoflarger
capacity
than
230V,45Aor
460V,
90
A
are
provided
withathyristor
cooling
fan
.
Fig
.5Inspection
Window
of
DC
Motor
D
Fig.6
Tap
Selection
of
Control
Supply
Voltage
Table
3
Supply
Voltage
Allowable
Range
50H
z
60Hz
For
50
Hz,
slide
the
switch
keyup.
For60Hz,
slide
the switch
key
down
.
Fig.7
Power
Frequency
Selector
Switch
Check
Pomts Check
Items
Interconnec-
"
Correct
wiring
tions
between"Tightening
of
terminal
screws
v
s-
505WE
and
Associ-
ate
Units
DC
Motor
"
Disconnection
from
the
driven
machine
"
Removalofthrust
block
"
Remove
inspection
covers
and
blow
out
with
air to
clean
commutator.(Fig.5)
VS-505WII
"
Adhesion
of
dirtordustonthe
enclosure
"
Smooth
hand
rotation
of
thyristor
cooling
fan
"
Check
items
in
"Cautions
in
Operation"
on
the
backofthe
control
board
door
"
Correct
connectionofthe
shunt
connector
to
the
voltage
selecting
tap
(Fig
.
6)
"
Correct
settingofthe
frequency
selector
switch
(Fig.7)
"
Correct
adjustmentofpotentiometers
on
the
control
board
(1PCB)
Refertored
paint
Supply
Volt-"Voltagesofanytwoofphases
U, V,Ware
age
at
Input
within
the
valuesonTable3.
Check
with
a
Terminals
of
tester
.
VS-505WR
"
Terminals
Uo
and
U1,
and
Woand
W,
are
connected
.
"
Rotating
directionofthe
motor
blower
meets
with
the
arrow
marked
on
the
blower
.
Nominal
Supply
Permissible
Voltage
Supply
Frequency
Voltage
Selector
Voltage
Variation
Tap
200
V
50/60
Hz
170-220
V
200
V
220
V
50/60
Hz
187-242
V
220
V
400
V
50/60
Hz
340-440
V
400
V
440
V
50/60
Hz
374-484
V
440
V
TEST
RUN
(Cont'd
)
NO-LOAD
OPERATION
After
making
the
checks
specified
before
test
run,
thoroughly
check
the
environment
of the
system
for
safety
.
Check
the
polarityofDC
tachometer
generator
feedback
voltage.When
the
motorisrunning
forward,
the
polarity of
VS-505WIl
signal
terminal2(3
:0V)is
minus
and
it
is
plus during
reverse
runningofthe
motor
.
Then,
run
the
motor
without
load
according
to
Table4.
FULL-LOAD
OPERATION
Before
starting
full-load
operation,
stop
the
power
supply,
couple
theDCmotortothe
driven
machine,
and
check
the
motor
and
the
driven
machine
for
safe
and
obstruction-free
conditions.Table5gives
full-load
operation
procedure
.
Table
4
No-load
Operation
*
VS-505W11.rated
220
V.45Aand
above
and460V.90A
and
above
are
provided
with a
thyrlstor
cooling
fan
.
6
ADJUSTMENT
Do
not
tamper
unnecessarily
with the
potentiometers
on
the
control
circuit
board
since
they
have been
adjusted
at
the
factory
before
shipped
.
Adjuster
Locations
and
Functions
Adjuster
locations
on
the control
circuit
board
and
functions
are
shown
in
rig.8
and
Table6.
The
characteristicsofcontrol
circuit
board
check
terminals
are
shownin:Fig.9
and
Table7.
0
sx
V
~
0
Fig.8
Adjuster
Locations
on
Control
Circuit
Board
'fable 5
Full-load
Operation
Order
Operation
Check
Items
9
1
Set
the
speed
reference
at
zero
.
2
Turn
on main
circuit
Smooth
rotationofthe
powersuppy
.
thyristor
cooling
fan
.
Smooth
rotationofthe
blower
forDCmotor
.
Rotating
directionofthe
blower
meets
with
the
mark-
ingonthe
blower
.
3
Make
an
operationalse-
Indication
light
"PREP"
on
quence
and
checktobe
the
control
board(1PCB)
sure
that
operation
is
turnson.
ready.(Turn
on
ready
signal,
motor
cooling
fan
ON
/OFF
signal
.)
4
Turn-on
the
operation
signal
.
5
Gradually,
increasethe
Smooth
accelerationofDC
speed
setting
value
.
motor
.
No
abnormalodor,
smoke,
vibration
and
noiseonDC
motor
.
6
Remove
the
hand-hole
No
brush
chattering
and
cover
and
check
the
I
sparkingatthebrushes
.
commutator
.
To
avoid
excessive
temperature
riseofDC
motor
windinginframe
112, 132,
reclose
the
window
within5minutes
.
7
Gradually,turn
the
Smooth
acceleration
of
DC
speed
setting
potentiom-
motor
.
eter
clockwise
.
8
'
Increase
the
speed
set-
DC
motor
rotatesatthe
ting
valuetothe
maxi-
maximum
speed
.
Check
mum
.
withaspeedometer
.
9 Change
the
speed
to
DC
motorspeed
corre-
various
values
.
sponds
with
the
set
values
.
10
Turn
off
the
operation
DC
motor
suddenly
stops
.
signal
.
11
Turn
off
the
main
cir-
cult
power
supply
.
Order
Operation
1
Setthe
speed
at
zero
.
2
Turnonthe
main
circ
uitpower
supply
.
3
Turn
on
operation
signal
and
gradually
increase
the
speed
.
Check
to
be
sure
that
the
motor
and
driven
machine
are
correctly
r
u
nning
.
4
Tu
rn
off
the
operationsig
n
al
.
5
Tu
rnoffmaincircuit
power
supply
.
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