Danfoss MCV105C User Manual Download

Page: 9 / 12

DIMENSION A

WIRING

(continued)

MS CONNECTOR PIN ORIENTATION

Pin orientation of the optional MS Connector.

1276

DIMENSION A

Dimension A for selecting correct terminal.

1123

PACKARD CONNECTOR CRIMP

PACKARD CONNECTOR PARTS

1077A

1078A

Crimp location and distance from tang to third rib of
Packard Weather-Pack Connector.

Packard Weather-Pack interlocked connector halves
with parts identified. Two wire connector shown.

CABLE

SEALS

SIDE "B"

RED

BLAC

SHROUD

CONNECTOR

SIDE "A"

DOUBLE-PLUG SEAL

TOWER CONNECTOR

MOUNTING

Danfoss

If there is a manual control mounted on the pump, it must
be removed before the MCV105B is mounted. To do so:

11152452 • Rev AA • May 2014

Summary of Contents for MCV105C

Page 1: ...ly replaced in the field Single or dual coil torque motor FEATURES The standard EDC is a single coil one input to the torque motor Packard connector device The first option is a dual coil which allows two command sources to be compared at thetorquemotor theresultingsignalbeingthealgebraicsum between the two Connectors are the second connector option available Dual pilot coils are available with bo...

Page 2: ... drive the pilot to full stroke Table B SuggestedVoltageDrives below demonstratesthis relationship and lists the suggested voltage drives for two coil temperatures MAXIMUM CONTINUOUS VOLTAGE THAT WILL NOT DAMAGE THE DEVICE 6 0 Vdc 200 F 93 3 C dual coil 7 5 Vdc 200 F 93 3 C single coil 23 ohm 30 Vdc 200 F 93 3 C single coil 643 ohm COIL INDUCTANCE 0 085 Henries single coil 23 ohm 0 062 Henries A B...

Page 3: ...umber K21436 which includes instructions ITEM PART 1 MCV116A3102 1 PILOT STYLE 22 1 MCV116A3204 1 PILOT STYLE 23 1 MCV116A3101 1 PILOT STYLE 26 1 MCV116A3201 1 PILOT STYLE 27 1 MCV116A3501 1 PILOT STYLE 46 2 K13340 1 LINK COVER 3 K13341 1 COVER GASKET 4 9004101 1190 1 O RING 93 I D X 103 5 K07057 2 SOC HD CAP SCREW 1 4 20 X 5 8 6 K11615 1 HEX SEAL NUT 5 16 24 7 K04064 4 SOC HD CAP SCREW 10 32 X 5 ...

Page 4: ... Silicone Oil Kit 4000 cs 8 K04196 1 Connector Gasket 9 K08687 4 Connector Screw for MS 10 K01314 1 Connector MS 11 K08688 4 Connector Screw for Packard 12 K08106 1 Mating Electrical Connector MS 13 K08014 1 Feed Through Assy Cover Plate 14 K07533 1 Feed Through Assy 4 pin Packard W P 15 K03384 1 Mating Electrical Packard W P 16 K00829 2 O ring control port 17 K00830 1 O ring return port 18 K08573...

Page 5: ...s to 12 15 in lb 16 20 N m 6 Verify that wire to pin connections are correct before soldering wires Also ensure that the connector gasket see Table D Service Parts Item 3 page 4 is in place before soldering 7a For the MS style connector ensure that the cups have sufficient solder approximately level If additional solder is required place solder iron against the base of thecupandaddsolder Whilesold...

Page 6: ...DIA HOLES 002 DRILLED THROUGH 90 APART 5625 18 SAE STR THD O RING BOSS SYSTEM PRESSURE GAUGE PORT A 5625 18 SAE STR THDO RINGBOSS CHARGE PRESSURE GAUGEPORT 5625 18 SAE STR THD O RING BOSS SYSTEM PRESSURE GAUGE PORT B 273 05 10 75 9 65 0 38 72 64 2 86 101 60 4 0 78 23 3 08 79 76 3 14 CAUTION DO NOT ADJUST NULL ON PILOT STAGE USE SECOND STAGE NULL ADJUST DIMENSIONS Dimensions of the MCV105C EDC in m...

Page 7: ... the pilot a stand alone closed loop pressure control valve The second stage of the EDC uses a piston and rotary valve arrangementthatservestoseparatethenulldeadbandfrom the feedback giving both safety against null drift and quick dynamic response to command changes The second stage s null adjust is set with the modulating spring compressed to the equivalent of 12 psi which is the amountofdifferen...

Page 8: ...sed A and B for single coil devices Note device MS connector is not field replaceable Its mate is part number K08106 bag assembly MS3106E 14S 2S See MS Con nectorPinOrientation page9 forproperpinlocations With both designs phasing is such that a positive voltage on the Red wire Pin B will cause a pressure rise at the C2 port for single coil valves The mating Packard connector is part number K03383...

Page 9: ...Crimp location and distance from tang to third rib of Packard Weather Pack Connector Packard Weather Pack interlocked connector halves with parts identified Two wire connector shown CABLE SEALS SIDE B RED BLACK SHROUD CONNECTOR SIDE A DOUBLE PLUG SEAL TOWER CONNECTOR MOUNTING Danfoss Danfoss If there isamanual control mountedonthe pump it must be removed before the MCV105B is mounted To do so Danf...

Page 10: ...uce erratic results 5 Putthe2shortscrews 1 4 20x3 4 throughthebosses onthesideofthevalve Putthetwolongscrews 1 4 20 x 2 5 through the valve body See Dimensions page 6 Torquethefourscrews inacrosspatternstartingwith the bolt closest to the pilot to 10 11 ft lbs Note Impropertorqueingmaycausecontroltobindand produce erratic results 6 If needed install control orifices under both servo covers SLEEVE ...

Page 11: ...lure mode is likely to be one of the following six 1357 Location of one of the servo gauge ports on the pump WARNING Electrical actuation of the valve and or hydraulic jogging of the valve may cause pump output and movement by the driven machine Take precautions to ensure that no personnel are in a position to be injured by the machine if it should move TROUBLESHOOTING FAILURE MODES A NO PUMP OUTP...

Page 12: ...current drive is high enough jog the manual operator on the pilot If full output is attained replacethepilot Ifpumpoutputislowonbothsides ofnull thefiltermaybepluggedinthesecondstage Ifthepumpoutputisfullononesideandlowonthe other replace the pilot F PUMP NULL DEADBAND IS ASYMMETRICAL 1 Adjust the second stage null using the null adjust procedure described previously 2 Iftheproblempersistsandtheno...

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