R 64/. MDSD (Series X) Mobile Dual Solenoid Driver R 64/.5 Replaces: 6.4 The MDSD amplifier provides control of components that use proportional solenoids without LVDTs for actuation. The MDSD orporates the following features: Wide supply voltage range: 0 VDC On board, replaceable fuse Reverse voltage protection Pulse Width Modulated (PWM) outputs PWM frequency adjustable from 5 5 Hz Max. and min. current separately adjustable for both solenoids High current driver, regulated to within.0%, continuous operation Infinite duration short circuit protection on both outputs Reference voltage provided for control via an external potentiometer (>K Ohm) Differential inputs for external voltage sources (+/.5 or +/ 5.0 VDC) Neutral position deadband for joysticks Ramp time 0. to 0.0 sec., separately adjustable for both solenoids ( = up/down; = up/down) Functional description The MDSD is a high current amplifier that controls proportional valves with one or two force solenoids. pplications lude the EL and EP controls on, 4,, pumps and 6 motors. lso luded are pressure and directional valves FT-DREK, DRE4K, DE, DET, MP, SM, SP, 4WR, 4WRZ. ll Volt solenoids can be controlled over the entire 0 to VDC power Ordering code MDSD Mobile Dual Solenoid Driver ll adjustments are made via multi-turn potentiometers EMI/RFI resistant Rugged, environmental packaging Temperature range: to 6 F ( 5 to 0 C) supply range to simplify design. Of course, 4 Volt solenoids can be used in 4 Volt power systems. The rugged, compact design is environmentally protected by a potting compound (Concap: EN- Conathane). The MDSD has good insusceptibility to electromagnetic interference (EMI) and has a wide temperature range. Mobile Dual Solenoid Driver Electrical deadband +/ 0% neutral deadband, = No code for joysticks No deadband = (for other applications) Connector Flat tabs (standard) = No code Screw terminals = K Flying leads = L Design series Series 0 to = 0 to Minimum pots P5, P6 can be adjusted to eliminate spool overlap on MDSD cards. MDSD X Preset djustments Further details to be written in clear text djustment option for MDSD-X/ 0 = ll other models,,, 4 = See preset adjustment table Ramp time No code = 0. 0 sec. R60 =. 60 sec. R0 =.4 0 sec. R40 = 4. 40 sec. Ramp type No code = / solenoid ramp W = Up/down ramp P, P P5, P6 P, P4 P = sec. 00 m 00 m 0 Hz = sec. 400 m 00 m 00 Hz = sec. 00 m 00 m 0 Hz 4 = sec. 00 m 600 m 00 Hz 0 = don't care Only applies to MDSD X/, MDSD X/, MDSD X/, and MDSD X/4.
R 64/. Technical data (for operation outside these parameters, please consult us!) Power supply voltage VDC V DC = 0 to Power requirement W P = I R. max SOL (Refer to valve or pump data sheet for max. solenoid current and hot solenoid resistance) Power supply current mp I = Ramp time sec. 0. to 0 (standard). to 60 (R60).4 to 0 (R0) 4. to 40 (R40) Control potentiometer KΩ to 0 P V DC Pulse frequency P Hz 5 to 5 Fuse 5x0 mm fast acting mp 4 mbient temperature F ( C) to 6 ( 5 to 0) Weight lbs 0.6 Terminal block connections Potentiometer / joystick control V+ Terminal lock (only) K (only) K K K I + I I 4 5 6 V DC SOL SOL +5.V Power Supply +.55V H+ 0 0 L+ L- H- (only) (only) and and Ground shield at one end only 4-0m (only) 0 0 /4W ±0V + 0 00k ±5.V + ±.5V + 0 and and and External voltage commands: ±.5V use terminals 0 and, V 0 > V for Sol ±5.0V use terminals and, V > V for Sol ±0V use terminals and, add 00 KΩ resistor between 0 and, V > V for Sol
Differential Input ±5.0 V ±.5 V H- L- L+ H+ 0 00K 00K 00K 00K 50K Ramp -time (up/down) P a b time t time Unidirectional P Step Generator P5 Unidirectional -max -min -max PWM Voltage Summation to Current V Frequency P 4 Functional diagram MDSD +.55 V +5. V 50K P -time (up/down) W-Ramp P4 Step Generator P6 -min Summation V PWM Voltage to Current 5 6 Power Supply VDC 4 Regulator a b P (Up) /-time t P (Down) /-time R 64/.
R 64/. Output curves MDSD Solenoid Output Current (mps).5.5 0.5 0 P5{ by reased min. current djustment Range 0 0 0 40 50 60 0 0 Input Voltage (%) 0 00 P 0.0 MDSD Dual Solenoid Sol Sol Output Current (mps) MDSD Dual Solenoid Sol Sol Output Current (mps) P4 P4 0 00 0 00 djustment Range P5{ }P6 djustment Range 0 60 40 0 0 0 40 60 Input Voltage (%) djustment Range P5{ }P6 0 60 40 0 0 0 40 60 Input Voltage (%) 0 00 djustment Range 0 00 P 0.0 P 0.0 Potentiometer djustments P Ramp time (std.) Sol P Ramp time (std.) Sol 0. 0 sec. P Max. current Sol P4 Max. current Sol 0.5 P5 Min. current Sol P6 Min. current Sol 0..5 P PWM frequency 5 5 Hz 4
Unit dimensions: dimensions in hes (millimeters) R 64/. MDSD K; Screw Terminals.5 (.4).4 (6.) ø 0.50 (.) holes (4 places) 4 5 6 0 P P J J J.60 (.4) 4.0 (0) P4 P P6 P5 P Screw terminals WG (.5 mm ).4 (.) Encapsulated MDSD ; Flat Tabs.5 (.4).4 (6.) ø 0.50 (.) holes (4 places) 4560 P P J J J.60 (.4) 4.0 (0) Typical terminal types Tab per DIN 464 Mates with 0.5 in. and 0. in. female tab connectors 0. typ. (5) P4 P P6 P5 P.5 (.) Encapsulated ( - ) ( - ) 5
R 64/. Unit dimensions: dimensions in hes (millimeters) MDSD L; Flying Leads Lead length pprox. 6.0 (50).5 (.4).4 (6.) ø 0.50 (.) holes (4 places) 4560 P P J J J.60 (.4) 4.0 (0) P4 P P6 P5 P pprox. 0. (0) Encapsulated Drawing not to scale oard Wire Color Red lack lue 4 White/lue 5 rown 6 White/rown Yellow Orange Violet 0 Gray White/Gray White/Violet Leads are WG stranded UL style 4 or equivalent, Irradiated PVC 6 Mannesmann Rexroth Corporation Rexroth Hydraulics Div., Industrial, 5 City Line Road, ethlehem, P 0- Tel. (60) 64-00 Fax: (60) 64-46 Rexroth Hydraulics Div., Mobile, 00 Old Mansfield Road, Wooster, OH 446-04 Tel. (0) 6-400 Fax: (0) 6- ll rights reserved - Subject to revision Printed in U.S..