Reliance electric DC2 VS series Technical Document

 
 
  

 

   
The pr ducts described in this Instructi n Manual are manufactured by Reliance
Electric Industrial C mpany.
This Manual familiarizes y u with the c ntr ller. It describes receiving, st rage and
installati n pr cedures; pr vides an verview f specificati ns and perati ns; and
includes tr ublesh ting, maintenance and replacement parts data.
Read this manual in its entirety bef re installing and starting the c ntr ller. ObĆ
serve all dangers, warnings and cauti ns; these precauti ns p int ut p tentially
hazard us pr cedures. All three types f precauti ns are encl sed in a b x t call
attenti n t them.
DA alerts a pers n that high v ltage is present that c uld result in seĆ
vere b dily injury r l ss f life.
DA alerts a pers n f p tential b dily injury if pr cedures are n t
f ll wed.
DA alerts a pers n that, if pr cedures are n t f ll wed, damage t , r
destructi n f, equipment c uld result.
VLSrand Reliancerare trademarks f Reliance Electric C mpany r its
subsidiaries.
EC pyright, Reliance Electric Industrial C mpany, 1994.


  
 !     "
(&(,9( $1' &&(37 7+( +,30(17 =
725( 7+( 21752//(5 817,/ 167$//$7,21 =
,/( $ (7851 (48(67 =
      "
21752//(5 21),*85$7,216 =
21752//(5 ($785(6 =
$6,& 21752//(5 ($785(6 // 2'(/6 =
3((' 21752/ ($785(6 2'(/6 =      
<                =
3((' 21752/ :,7+ (9(56,1* $1' ;1$0,& 5$.,1*
<2'(/6 =    =
3((' 21752/ :,7+ 62/$7(' 52&(66 21752/ 17(5)$&(
<2'(/6 =          =
$6,& !2548( 21752/ ($785(6 2'(/6 =  
<         =
!2548( 21752/ :,7+ 62/$7(' 52&(66 21752/ 17(5)$&(
<2'(/6 =      =
2* 81&7,216 2'(/6 =        =
21752//(5 3(&,),&$7,216 =
$7,1*6 =
21752//(5 (5)250$1&( =
3((' 21752/ '-8670(17 $1*(6 =
!2548( 21752/ '-8670(17 $1*(6 =
     ! "
167$// 7+( 5,9( =
167$// 7+( 21752//(5 =
167$// 7+( 2725 =
167$// $ ,6&211(&7 =
#,5( 7+( 5,9( =
5281' 7+( 21752//(5 $1' 1&/2685( 7+( 2725
<$1' 7+( 3(5$7256 21752/ 7$7,21 =
#,5( = 2:(5 72 7+( 21752//(5 =
#,5( 7+( = 2725 72 7+( 21752//(5 =
#,5( 7+( 7$57 723 ,5&8,7 =
#,5( 7+( 812* ,5&8,7 =
#,5( 7+( ()(5(1&( ,*1$/ 27(17,20(7(5 =
#,5( 7+( 52&(66 21752/ $1'25 8720$7,&$18$/ (9,&(6 ,) 5(48,5(' =
#,5( 7+( = !$&+20(7(5 3((' (('%$&. ,*1$/ =
       ! "
26,7,21 7+( 21752//(5 803(56 72 ,7 33/,&$7,21 =
 = 1387 "2/7$*( 803(5 =
 "2/7$*(!$&+ (('%$&. (/(&7,21 803(5 =
 !$&+20(7(5 &$/,1* 803(5 =
 21752//(5 87387 855(17 803(5 =
 52&(66 21752/ 17(5)$&( 803(5 =


 ! ' # % )
 )'$( $&"! )
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 & ! ' #$ )
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
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  
!%&/) = 3)1 %1( /%7) 7</) ,%66-6 21752//)56 -67)(
&< )%785)6 %1( 21*-+85%7-21 =
!%&/) =   1'/26)(
21752//)56 -67)( &< )%785)6 %1( 21*-+85%7-21 =
!%&/) =  $ 1'/26)(
21752//)56 -67)( &< )%785)6 %1( 21*-+85%7-21 =
!%&/) = 21752//)5 %7-1+6 &< 2725 256)32:)5 =
!%&/) = 21752//)5 62/%7-21 !5%16*250)5 %7-1+6 =
!%&/) = 3))( )+8/%7-21 ,%5%'7)5-67-'6 =
!%&/) = <1%0-' 5%.-1+ %3%&-/-7-)6 :-7, :-7', )9)56-1+
2()/6 =   %1(  21/< =
!%&/) = 21752//)5 = 87387 855)17 %7-1+ =
!%&/) = 21752//)5 )3/%')0)17 %576 =
!%&/) = )59-'-1+ 7)36 =

11
1: Receive and
Accept the Controller
Receive and Accept the Shipment
The Reliance r DC2 V LS Controller (herein referred to as controller)
has been designed, manufactured and thoroughly tested to provide
many years of reliable service. The shipping container in which you
received your controller has been specifically designed to protect it
during transportation and handling.
Reliance terms of sales, in all instances, are F .O .B. point of origin. It is
your responsibility to thoroughly inspect the equipment before
accepting shipment from the transportation company .
If any of the items called for on the bill of lading or express receipt are
damaged or are not included, do not accept the shipment until the
freight or express agent makes an appropriate notation on your freight
bill or express receipt.
If any concealed loss or damage is discovered later , notify your freight
or express agent within 15 days of receipt and request that he make an
inspection of the shipment. K eep the entire shipment intact in its
original shipping container .
The consignee is responsible for making claim against the Carrier for
any shortage or damage occurring in transit. Claims for loss or damage
in shipment must not be deducted from the Reliance Electric invoice,
nor should payment of the Reliance invoice be withheld while awaiting
adjustment of such claims since the carrier guarantees safe delivery .
If considerable damage has been incurred and the situation is urgent,
contact the nearest Reliance Electric Sales Office for assistance. T o find
the nearest sales office, call tollfree 18002454501.
Store the Controller until Installation
After receipt inspection, repack the controller in its shipping container
until installation. If a period of storage is expected, store in the original
shipping container with its internal packing.
T o ensure satisfactory drive operation at startup and to maintain
warranty coverage, store the equipment:
D In its original shipping container in a clean, dry , safe place.
D In an ambient temperature that does not exceed 65 _ C (149 _ F) or go
below -30 _ C (-22 _F).
D Within a relative humidity range of 5 to 95% without condensation.
D Away from a highly corrosive atmosphere. In harsh environments,
cover the shipping/storage container .

12
File a Return Request
1. To return equipment, send a written request to Reliance Electric
sales/service within ten days of receipt.
2. Do not return equipment without a numbered authorization form
(ERA form) from Reliance Electric.
3. Reliance Electric reserves the right to inspect the equipment on site
to verify any claims.
T o find the nearest sales/service office, call tollfree 18002454501.

21
2: Introduction to the Controller
Controller Configurations
The controller converts singlephase AC line power to adjustable D C
power for either speed or torque control of D C motors rated 1/4
through 2 HP . The controller is specifically performance matched to
Reliance D C Motors to provide a compact controller/motor package. It
will operate all Reliance 1/4 through 2 HP permanent magnet or wound
field D C motors with compatible armature and field voltages.
The controller is available in a wide array of applicationspecific
configurations, in flat plate chassis or open chassis designs as well as
NEMA 12 or NEMA 4/4X/12 enclosure designs. T ables 21 through
T able 23 list available configurations.
Note : Oiltight and dusttight conduit hole plugs (part 197308A) are
standard on DC2 NEMA 12K designs. Conduit hubs are not supplied.
Note : W ater tight conduit hubs are standard on DC2 NEMA 4/4X/12
designs. Additional conduit hubs for NEMA 12 or NEMA 4/4X/12
designs can be ordered by referencing Reliance P art Number
6088262A.
Note : Models DC295 and DC297 feature a special 10turn speed
potentiometer . Reference Reliance part number 60059414SFX for
replacement.
Note : When the RE020 D C T achometer is used, a controller isolation
transformer must be used. See Install a Disconnect in Section 3 of this
instruction manual for complete instructions.
T able 21. Open and Plate Style Chassis Controllers Listed
by F eatures and Configuration.
Controller Model Number by Configuration
Speed Control T orque Control Controller F eatures
DC240U
DC245U!
DC250U
DC255U!
DC243U
DC253U
Basic
DC242U
DC246U!
DC252U
DC256U!
DC244U
DC254U
Basic plus
Process
Control Interface
! Special customer model.

22
T able 22. NEMA 12 Enclosed
Controllers Listed by F eatures and Configuration.
DC260U
DC265U1
DC270U 2
DC275U 1
2
DC263U
DC273U@
Basic
DC262U
DC266U1
DC272U2
DC276U1
2
DC264U
DC274U@
Basic plus
Process Control
! Special customer model.
@ Includes operator's controls.
# Cannot be used with D C tachometer speed feedback
DC271U2
3
Basic plus
Dynamic Braking (DB)/
Reversing
Basic plus DB/
Reversing plus Jog
DC278U2
3
Basic with Jog DC260U
DC279U2
Controller Model Number by Configuration
Speed Control T orque Control
Controller F eatures
Not Available
Not Available
Not Available
T able 23. NEMA 4/4X/12 Enclosed
Controllers Listed by F eatures and Configuration.
Basic
Basic plus
Process Control
1
Includes operator's controls.
2
Cannot be used with D C tachometer speed feedback
Basic plus
DB/Reversing
Basic plus DB/
Reversing plus Jog
Basic with Jog
Controller Model Number by Configuration
Speed Control T orque Control Controller F eatures
DC280U
DC290U1
DC295U1
DC283U
DC293U1
DC282U
DC292U1
DC297U1
DC284U
DC294U1
DC291U1
2
DC298U1
2
DC280U
DC299U1Not
Available
Not Available
Not Available

23
Controller Features
Standard DC2 controllers available are listed in T ables 21, 22 and 23.
Basic Controller Features (All Models)
DAC line power reconnectable for singlephase 115 or 230 volts:
- 115 volts AC : 90 volt armature/50 volt field supply
- 230 volts AC : 180 volt armature/100 volt field supply
D 50 or 60 cycle power without modification
DF ullwave, half controlled armature voltage rectifier with back diode
for improved armature form factor
DHalf wave field supply for shunt wound D C motors
D Optional short circuit protection by incoming line fuse.
D Line transient protection by metal oxide varistor and RC circuit
D Armature current scaling by reconnectable jumper for horsepower
rating
D Unidirectional operation with coasttorest stop
D Motor overload protection by internal motor thermostat
D Provisions for remote start, remote stop and/or remote run/jog
Speed Control Features
(Models DC240, 42, 45, 46, 50, 52, 55, 56, 60, 62,
65, 66, 70, 71, 72, 80, 82, 90, 91, 92, 95, 97, 99)
DAll features listed in Basic Controller Features (All Models)"
D Speed control by armature voltage regulation or motor mounted
D C tachometer (Except DC271, 78, 91 or 98)
DP otentiometer motor speed adjustment
D Separately adjustable maximum and minimum speeds
D Independently adjustable rates
D Adjustable current limit
D Jumper selectable Armature voltage feedback scaling (90 or 180
volts)
D Adjustable IR drop compensation
Speed Control with Reversing and Dynamic Braking
(Models DC271, 78, 91, 98)
DAll features listed in Basic Controller F eatures (All Models)" and
Speed Control F eatures"
D Reversing direction of rotation by a FORW ARD/OFF/REVERSE
switch. The off " position (or center position of the switch) applies
dynamic braking (braking capabilities listed in T able 25)
D Selector switch has detent feature which requires release of
pressure on the switch when passing from forward to reverse. When
combined with the dynamic braking action, this feature minimizes
the possibility of plug reversing the motor .