YASKAWA VS-505WII - Table of Contents

When properly installed, operated and maintained, this
unit will provide a lifetime of optimum operation . It is
mandatory that the person who operates, inspects,
and
maintains this equipment thoroughly reads
and
understands this manual andhas in his possession
at
all time .
IMPORTANT
. Make no
withstand voltage test on the VS-505WII
because
it incorporates semi-conductor
electronic
circuits .
. If insulation resistance tests are
neccessary, make
them only in accordance
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 potentiometers of the power units
since they were preset
at the factory
before
shipment .
Varispeed-505W11 (VS-505WII) is a thyristor
converter
unit for varispeed reversible operation of
industrial DC
motors .
For correct operation of VS-505WII,
users must
thoroughly read these instructions .
This manual is also
necessary for maintenance and troubleshooting,
and
threfore should be kept filed for ready reference
.
For details on DC motors,
refer to "Instructions for
Industrial DC Motors" (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
Cautions in Replacing
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