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Proportional relief valves type RZMO-TERS, AERS

direct operated, with integral or remote pressure transducer, ISO 4401 size 06

Table F010-1/E

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



, which supply the

proportional valve with proper current to

align valve regulation to the reference signal

supplied to the electronic driver.

They are available in different executions:

• -TERS with integral pressure transducer 

plus digital electronics  preset in closed

loop, featuring improved static and

dynamic performances.

• -AERS as -TERS but without integral

pressure transducer (predisposed for

connection of remote pressure

transducer).

The system pressure is controlled by the

poppet , directly operated by the

proportional solenoid  and the spring .

The integral electronics ensures factory

presetting, fine functionality plus valve-to-

valve interchangeability and simplified

wiring and installation.

The electronic main connector  is 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.

Following communication interfaces  are

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.

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.

RZMO

Proportional pressure

relief valve size 06

Configuration:

010 = regulation on port P, discharge in T

Communication interfaces:

PS = Serial

BC = CANopen

BP = PROFIBUS-DP

Electronics options, see section



I =

current reference input and monitor

(4 ÷ 20 mA) signals

Z =

double power supply, enable fault and

monitor signals (12 pin connector)

C = remote pressure transducer with cur-

rent feedback 4÷20 mA (only for

AERS executions)

Series number

315 **TERS---/ *

1 MODEL CODE

F010

010PS

Pressure range:

100 = 100 bar

210 = 210 bar

315 = 315 bar

350 = 350 bar

*//

RZMO-TERS-PS-010/*

2 ELECTRONIC DRIVERS FOR RZMO

Valve model

Drivers model

Data sheet

E-RI-TERS

G205

E-RI-AERS

-TERS -AERS

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)

Note: for power supply and communication connector see section

Valve body

Proportional solenoid

Spring

Poppet

Integral pressure transducer

Integral electronics

Main connector

Communication connector

Screw for air bleeding



















Seals material:

omit for NBR (mineral

oil & water glycol)

PE = FPM

6 DIGITAL INTEGRAL DRIVERS -TERS and -AERS -OPTIONS

Standard driver execution provides on the 7 pin main connector:

Power supply

- 24VDC must be appropriately stabilized or rectified and filtered; a 2,5 A safety fuse is required in series to each driver power supply

Apply at least a 10000 μF/40 V capacitance to single phase rectifiers or a 4700 μF/40 V capacitance to three phase rectifiers

Reference input signal

analog differential input with 0÷+10 VDC nominal range (pin D,E), proportional to desired valve pressure regulation

Monitor output signal

- analog output signal proportional to the actual valve pressure regulation = 0÷+10 VDC nominal range

Following options are available to adapt standard execution to special application requirements:

6.1 Option /I

It provides 4÷20 mA current reference and monitor signals instead of the standard 0÷+10 V

DC.

It is normally used in case of long distance between the machine control unit and the valve or where the reference signal can be affected by electrical

noise; the valve functioning is disabled in case of reference signal cable breakage.

6.2 Option /Z

It provides on 12 pin main connector the following additional features

Logic power supply

Separated power supply for the solenoid (pin 1, 2) and for the digital electronic circuits (pin 9, 10).

Cutting solenoid power supply allows to interrupt the valve functioning but keeping energized the digital electronics thus avoiding fault conditions of the

machine fieldbus controller. This condition allows to realize safety systems in compliance with European Norms EN13849-1 (ex EN954-1).

Enable Input Signal

To enable the driver, supply 24V

DC on pin 3 referred to pin 2: when the Enable signal is set to zero the valve functioning is disabled (zero current to the

solenoid) but the driver current output stage is still active.

Fault Output Signal

Fault output signal indicates fault conditions of the driver (solenoid short circuits/not connected, reference signal cable broken for 4÷20mA input, etc.).

Fault presence corresponds to 0

VDC

, normal working corresponds to 24

VDC (pin 11 referred to pin 2)

: Fault status is not affected by the Enable input signal

6.3 Option /C (only for -AERS version)

The valve electronics is set to receive the 4÷20 mA feedback signal from the remote pressure transducer, instead of the standard 0÷10 V.

6.4 Possible combined options: /CI, /CIZ, /CZ (only for -AERS) and /IZ.

RZMO proportional valve are CE marked according to the applicable Directives (e.g. Immunity/Emission EMC Directive and Low Voltage Directive).

Installation, wirings and start-up procedures must be performed according to the general prescriptions shown in table F003 and in the installation notes

supplied with relevant components.

The electrical signals of the valve (e.g. monitor signals) must not be directly used to activate safety functions, like to switch-ON/OFF the machine’s safety

components, as prescribed by the European standards (Safety requirements of fluid technology systems and components-hydraulics, EN-982).

GENERAL NOTES

Assembly position Any 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

Fluid Hydraulic oil as per DIN 51524 ... 535 for other fluids see section



Recommended viscosity 15 ÷100 mm

/s at 40°C (ISO VG 15÷100)

Fluid contamination class ISO 4406 class 20/18/15 NAS 1638 class 9, in line filters of 10 μm (β10 _>75 recommended)

Fluid temperature -20°C +60°C (standard seals) -20°C +80°C (/PE seals)

4 MAIN CHARACTERISTICS OF PROPORTIONAL RELIEF VALVES

Coil resistance R at 20°C 3 ÷ 3.3 Ω

Max solenoid current 2,6 A

Max power 40 Watt

Protection degree (CEI EN-60529) IP67

Duty factor Continuous rating (ED=100%)

≤ 55

≤ 0,3

≤ 1,0

≤ 0,2

zero point displacement < 1% at ΔT = 40°C

Hydraulic symbols

Valve model

Max regulated pressure (Q = 1 l/min) [bar]

Min. regulated pressure (Q = 1 l/min) [bar]

Max. pressure at port P [bar]

Max. pressure at port T [bar]

Max. flow [l/min]

Response time 0-100% step signal

[ms]

(depending on installation)

Hysteresis [% of the max pressure]

Linearity [% of the max pressure]

Repeatability [% of the max pressure]

Thermal drift

RZMO-TERS

100

1,8

210

2,5

315

3,5

350

210

RZMO-AERS

HYDRAULIC CHARACTERISTICS (based on mineral oil ISO VG 46 at 50 °C)

7 DIGITAL INTEGRAL DRIVERS -TERS and -AERS -main functions and electronic connectors

7.1 ELECTRONIC CONNECTIONS - 7 & 12 PIN MAIN CONNECTOR

Standard

7pin

/Z option

12pin

SIGNAL TECHNICAL SPECIFICATIONS NOTES

A 1 V+ Power supply 24 VDC for solenoid power stage

(and for driver logic on 7 pin connection)

Input - power supply

B 2 V0 Power supply 0 VDC for solenoid power stage

(and for driver logic on 7 pin connection)

Gnd - power supply

- 3 ENABLE Enable (24 VDC) or disable (0 VDC) the driver Input - on/off signal

D 4 INPUT+

Reference analog input: ±10 VDC maximum range (4 ÷ 20 mA for /I option)

Normal working range 0÷+10 V

DC (4 ÷ 20 mA for /I option)

differential INPUT+ and INPUT- (for 7 pin standard execution)

common mode INPUT+ referred to AGND (only for /Z option)

Input - analog signal

E - INPUT -

C 5 AGND

Ground : signal zero for MONITOR signal ( pin F of 7 pin standard or pin 6 of /Z option)

signal zero for INPUT+ signal ( only for /Z option)

Gnd - analog signal

F 6 MONITOR Monitor analog output: ±10 VDC maximum range

(4 ÷ 20 mA for /I option)

Output - analog signal

- 7 NC do not connect

- 8 NC do not connect

- 9 VL+ Power supply 24 VDC for driver’s logic Input - power supply

- 10 VL0 Power supply 0 VDC for driver’s logic Gnd - power supply

- 11 FAULT Driver status : Fault (0VDC) or normal working (24 VDC) Output - on/off signal

G PE EARTH Internally connected to driver housing

Note: A minimum time of 270 to 590 ms have be considered between the driver energizing with the 24 VDC power supply and when the valve is ready to

operate. During this time the current to the valve coils is switched to zero

COMMUNICATION

CONNECTOR

12 PIN - OPTION /Z

7 PIN - STANDARD

5 PIN reverse key

PROFIBUS DP (-BP)

5 PIN

Serial (-PS) or

CANopen (-BC)

RAMPS

BIASSCALE

LINEARIZATION

MAIN CONNECTOR

(driver view)

F010







: E-RI-TERS connection for integral pressure transduce signal



: E-RI-AERS 4 pin connector for remote pressure transducer, see section 7.3

7.2 ELECTRONIC CONNECTIONS - 5 PIN COMMUNICATION CONNECTORS

SOFTWARE TOOLS

-PS Serial -BC CANopen -BP PROFIBUS DP

PIN SIGNAL TECHNICAL SPECIFICATION SIGNAL TECHNICAL SPECIFICATION SIGNAL TECHNICAL SPECIFICATION

1 NC do not connect CAN_SHLD Shield +5V for termination

2 NC do not connect NC do not connect LINE-A Bus line (high)

3 RS_GND Signal zero data line CAN_GND Signal zero data line DGND data line and termination Signal zero

4 RS_RX Valves receiving data line CAN_H Bus line (high) LINE-B Bus line (low)

5 RS_TX Valves transmitting data line CAN_L Bus line (low) SHIELD

7.3 ELECTRONIC CONNECTIONS - 4 PIN REMOTE PRESSURE TRANSDUCER M8 CONNECTOR (only for AERS)

See tab. G465 for the pressure transducer characteristics and connections.

PIN standard version

/C option (Ri = 316 Ω)

TR remote trasducer pressure signal (0÷+10 VDC) TR remote trasducer pressure signal (4÷20 mA)

2 NC reserved (do not connect) NC reserved (do not connect)

3 VT remote transducer power supply +24 VDC VT remote transducer power supply +24 VDC

4 AGND signal zero for power supply and signal NC reserved (do not connect)

The driver configuration and parameters can be easily set with the Atos E-SW programming software, available in three different versions according to the

driver’s communication execution: E-SW-PS (Serial), E-SW-BC (CANopen) and E-SW-BP (PROFIBUS DP).

For a more detailed description of software interface, PC requirements, adapters, cables and terminators, please refer to technical table G500.

Programming software, must be ordered separately:

E-SW-* (mandatory - first supply) = Dvd including E-SW-* software installer and operator manuals; it allows the registration to Atos digital service

E-SW-*-N (optional - next supplies) = as above but not allowing the registration to Atos digital service

On first supply of the E-SW-* software, it is required to apply for the registration in the Atos download area: www.download.atos.com.

Once the registration is completed, the password will be sent by email.

The software remains active for 10 days from the installation date and then it stops until the user inputs his password.

With the password you can also download, in your personal area, the latest releases of the Atos software, manuals, drivers and configuration files.

01/13

INSTALLATION DIMENSIONS [mm]

ISO 4401: 2005

Mounting surface:

4401-03-02-0-05 (see table P005)

(without ports A and B)

Fastening bolts:

4 socket head screws M5X50 class 12.9

Tightening torque = 8 Nm

Seals: 2 OR 108

Ports P, T: Ø = 5 mm

MODEL CODES OF POWER SUPPLY AND COMMUNICATION CONNECTORS (to be ordered separately)

VALVE VERSION

CONNECTOR CODE

ZH-7P ZM-7P ZH-12P ZH-5P ZH-5P/BP

PROTECTION DEGREE

IP67 IP67 IP67 IP67 IP67

-AERS, -TERS

-AERS/Z

-TERS/Z

-Serial (-PS)

or CANopen (-BC)

PROFIBUS DP (-BP)

DATA SHEET

G205, K500

RZMO-TERS-*

RZMO-AERS-*

Mass: 2,5 Kg

Mass: 2,7 Kg

DIAGRAMS (based on mineral oil ISO VG 46 at 50 °C)

9.3 Min. pressure/flow diagrams

with zero reference signal

3 = RZMO-*-010/100

4 = RZMO-*-010/210

5 = RZMO-*-010/315

6 = RZMO-*-010/350

9.4 Dynamic response

The response times in section  have 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 stiffness of the hydraulic circuit:

greater is the stiffness of the circuit, faster is the dynamic response. The valves dynamic performances can be optimized depending on the stiffness

characteristics of the hydraulic circuit, by setting the internal software parameters. This regulation is particularly helpful in case of circuits with accu-

mulators and/or with great fluid volumes and/or with long hoses.

Flow [l/min]

Min. regulated pressure [bar]

9.1 Regulation diagrams

with flow rate Q = 1 l/min

1 = RZMO-TERS, RZMO-AERS

9.2 Pressure/flow diagrams

with reference signal set at Q = 1 l/min

2 = RZMO-TERS, RZMO-AERS

Flow [l/min]

Reference signal [% of max.]

Pressure at port P [% of the max.]

Pressure at port P [bar]



ZH-7P or ZM-7P

ZH-5P/BP (for -BP)

ZH-5P (for -PS and -BC)

ZH-5P/BP (for -BP)

ZH-5P (for -PS and -BC)



(1) M8 connector ZH-4P-M8/5 moulded on cable 5 mt lenght for pressure transducer

ZH-4P-M8/5 (1)

Pressure transducer

only for -AERS

IP67





= 12 pin connector ZH-12P (option/Z)

4 pin connector ZH-4P-M8/5 (see tab. G205)



= remote pressure transducer, to be ordered separately (see tab. G465)



Note:

The presence of counter pressure at port T

can affect the effective pressure regulation.