Proportional pressure valves type RZMO-TERS
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Proportional pressure valves type RZMO-TERS - 1

Proportional relief valves type RZMO-TERS, AERS direct operated, with integral or remote pressure transducer, ISO 4401 size 06 RZMO are poppet type proportional pressure relief valves, direct operated with integral or remote pressure transducer, which provide pressure regulation proportional to electronic reference signals. They operate in association with electronic drivers, see section ‫ ,ݘ‬which supply the proportional valve with proper current to align valve regulation to the reference signal supplied to the electronic driver. Valve body They are available in different executions: • -TERS with integral pressure transducer ‫ܬ‬ plus digital electronics ‫ ܭ‬preset in closed loop, featuring improved static and dynamic performances. • -AERS as -TERS but without integral pressure transducer (predisposed for connection of remote pressure transducer). MODEL CODE Proportional solenoid Spring Poppet Integral pressure transducer Integral electronics The system pressure is controlled by the poppet ‫ ,ܫ‬directly operated by the proportional solenoid ‫ ܩ‬and the spring ‫.ܪ‬ Main connector The integral electronics ensures factory presetting, fine functionality plus valve-tovalve interchangeability and simplified wiring and installation. Communication connector Screw for air bleeding * Seals material: omit for NBR (mineral oil & water glycol) PE = FPM Proportional pressure relief valve size 06 TERS = with integral digital electronics and pressure transducer AERS = as TERS but predisposed for connection of remote pressure transducer (to be ordered separately, see tab. G465) Series number PS = Serial BC = CANopen BP = PROFIBUS-DP Electronics options, see section ‫:ݜ‬ I 010 = regulation on port P, discharge in T = current reference input and monitor (4 ÷ 20 mA) signals Z = double power supply, enable fault and monitor signals (12 pin connector) Pressure range: Following communication interfaces ‫ ܮ‬are available: • -PS, Serial communication interface for configuration, monitoring and firmware updating trough Atos PL software • -BC, CANopen interface • -BP, PROFIBUS DP interface The valves with -BC and -BP interfaces can be integrated into a fieldbus communication network and thus digitally operated by the machine control unit. Communication interfaces: The electronic main connector ‫ ܮ‬is fully interchangeable for -TERS and -AERS executions. Standard 7 pin connector is used for power supply, analog input reference and monitor signals. 12 pin connector is used for option /Z. The coils are fully plastic encapsulated (insulation class H), and the valves have antivibration, antishock and weather-proof features. Mounting surface: ISO 4401, size 06 Max flow: 4 l/min Max pressure: 350 bar. C = remote pressure transducer with current feedback 4÷20 mA (only for AERS executions) ELECTRONIC DRIVERS FOR RZMO Valve model Drivers model Data sheet Note: for power supply and communication connector see section

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Proportional pressure valves type RZMO-TERS - 2

HYDRAULIC CHARACTERISTICS (based on mineral oil ISO VG 46 at 50 °C) Hydraulic symbols Valve model Max regulated pressure (Q = 1 l/min) Min. regulated pressure (Q = 1 l/min) Max. flow Response time 0-100% step signal (depending on installation) ≤ 0,2 zero point displacement < 1% at ΔT = 40°C Thermal drift MAIN CHARACTERISTICS OF PROPORTIONAL RELIEF VALVES Assembly position Subplate surface finishing Roughness index, Ra 0,4 flatness ratio 0,01/100 (ISO 1101) Ambient temperature -20°C ÷ +50°C for -TERS and -AERS executions Hydraulic oil as per DIN 51524 ... 535 for other fluids see section ‫ݗ‬...

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Proportional pressure valves type RZMO-TERS - 3

DIGITAL INTEGRAL DRIVERS -TERS and -AERS -main functions and electronic connectors MAIN CONNECTOR COMMUNICATION CONNECTOR (driver view) (driver view) (driver view) ᕃ: E-RI-TERS connection for integral pressure transduce signal ᕄ: E-RI-AERS 4 pin connector for remote pressure transducer, see section 7.3 7.1 ELECTRONIC CONNECTIONS - 7 & 12 PIN MAIN CONNECTOR Standard /Z option 7pin 12pin TECHNICAL SPECIFICATIONS Power supply 24 VDC for solenoid power stage (and for driver logic on 7 pin connection) Input - power supply Power supply 0 VDC for solenoid power stage (and for driver logic on 7 pin...

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Proportional pressure valves type RZMO-TERS - 4

Regulation diagrams with flow rate Q = 1 l/min 1 = RZMO-TERS, RZMO-AERS Note: The presence of counter pressure at port T can affect the effective pressure regulation. Pressure/flow diagrams with reference signal set at Q = 1 l/min DIAGRAMS (based on mineral oil ISO VG 46 at 50 °C) 2 = RZMO-TERS, RZMO-AERS Flow [l/min] Min. pressure/flow diagrams with zero reference signal Flow [l/min] Dynamic response The response times in section ‫ ݙ‬have to be considered as average values. The pressure variation in consequence of a modification of the reference input signal to the valve is affected by the...

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