www.atos.

com Table F065-9/E

Proportional relief valves type RZMO-AES and HZMO-A

pilot operated, without integral pressure transducer, subplate or modular mounting, ISO 4401 size 06

Proportional pressure relief valves, pilot

8 operated without integral pressure tran-
sducer, available in two different execu-
tions:
- RZMO subplate mounting;
- HZMO modular mounting.
They operate in association with electronic
9 drivers, see table  which supply the pro-
portional valve with proper current signal to
align valve regulation to the reference
signal supplied to the electronic driver.
RZMO-AES-BP-030/*
They are available in different executions:
• -A, without integral pressure transducer.
• -AE, -AES, as -A plus analogue (AE) or
digital (AES) integral electronics  (only
for RZMO).
 Main spool
 Proportional pilot relief valve The system pressure is controlled by the
spool , piloted by the proportional pilot
 Flow control cartridge
relief valve .
 Integral electronics
 Main connector The intermediate compensated flow
 -BC or -BP communication connector control cartridge  assures constant pilot
flow and therefore high pressure stability.
 -PS communication connector HZMO-A-030
-EH Communication connector (input) The integral electronics  ensures factory
presetting, fine functionality plus valve-to-
-EH Communication connector (output)
valve interchangeability and simplified
wiring and installation.
1 MODEL CODE The electronic main connector  is fully
interchangeable for -AE and -AES
RZ MO - AES - PS - 030 / 315 / * ** / * executions. Standard 7 pin connector is
used for power supply, analog input
Proportional pressure Seals material: reference and monitor signals.
relief valves size 06 omit for NBR (mineral 12 pin connector is used option /Z (AES).
RZ = subplate oil & water glycol)
PE = FPM Following communication interfaces  ,
HZ = modular
, , are available for the digital -AES
execution:
MO = pressure relief
• -PS, Serial communication interface
Series number for configuration, monitoring and
A = without integral transducer firmware updating through Atos PC
software - always present also for -BC,
Only for RZMO:
-BP and -EH options
AE = as A plus integral electronics
• -BC, CANopen interface
AES = as A plus integral digital electronics
• -BP, PROFIBUS DP interface
Options: • -EH, EtherCAT interface
Communication interfaces (only for AES) The valves with -BC and -BP interfaces
Coil voltage (only for -A execution) see
PS = Serial (1) can be integrated into a fieldbus
section :
BC = CANopen communication network and thus
- = standard coil for 24VDC Atos drivers
BP = PROFIBUS DP digitally operated by the machine
6 = optional coil for 12VDC Atos drivers
EH = EtherCAT control unit.
18 = optional coil for low current drivers
for -AE execution, see section :
The coils are fully plastic encapsulated
Configuration, see section : with insulation class H.
I = current reference (4÷20 mA)
030 = regulation on port P, discharge in T Q = enable signal Surface mounting: ISO 4401 size 06
for -AES execution, see section :
Max flow: 40 l/min
Pressure range Max pressure: 350 bar
Q = enable signal
50 = 50 bar
100 = 100 bar 315 = 315 bar Z = adds double power supply, enable
210 = 210 bar 350 = 350 bar and fault signals (12 pin connector)

(1) Serial communication interface always present, also for -BC, -BP and -EH options

2 ELECTRONIC DRIVERS FOR *ZMO

Valve model -A -AE -AES

Drivers model E-MI-AC-01F E-MI-AS-IR E-BM-AC-01F E-BM-AS-PS E-ME-AC-01F E-RP-AC-01F E-RI-AE E-RI-AES
Data sheet G010 G020 G025 G030 G035 G100 G110 G115

F065
 3 HYDRAULIC CHARACTERISTICS (based on mineral oil ISO VG 46 at 50 °C)

Hydraulic symbols

RZMO-A-030 RZMO-AE-030 HZMO-A-030

Valve model RZMO-A, RZMO-AE, RZMO-AES, HZMO-A
Max. regulated pressure (Q = 10 l/min) 50 100 210 315 350
Min. regulated pressure (Q = 10 l/min) [bar] 6
Max. pressure at ports P, T [bar] port P = 350 bar; port T 210 bar
Minimum flow [l/min] 2,5
Maximum flow [l/min] 40
Response time 0-100% step signal
[ms] 60
(depending on installation) - see section 6.4
Hysteresis [% of the max regulated pressure] ≤2
Linearity [% of the max regulated pressure] ≤3
Repeatability [% of the max regulated pressure] ≤2
Above performance data refer to valves coupled with Atos electronic drivers, see section .

4 MAIN CHARACTERISTICS

Assembly position Any position

Subplate surface finishing Roughness index Ra 0,4 - flatness ratio 0,01/100 (ISO 1101)
Ambient temperature -20°C ÷ +70°C for -A execution; -20°C ÷ +60°C for -AE and -AES executions
Fluid Hydraulic oil as per DIN 51524 ... 535 for other fluids see section 
Recommended viscosity 15 ÷100 mm2/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)
Coil resistance R at 20°C 3 ÷ 3.3 Ω for standard; 2 ÷ 2,2 Ω for option /6; 13 ÷ 13,4 Ω for option /18
Max solenoid current 2,6 A for standard 12 VDC coil; 3,25 A for 6 VDC coil; 1,5 A for 18 VDC coil
Max power 30 Watt for -A execution; 50 Watt for -AE and AES executions
Protection degree (CEI EN-60529) IP65 for -A execution; IP67 for -AE and AES executions
Duty factor Continuous rating (ED=100%)

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

5.1 Regulation diagrams

with flow rate Q = 10 l/min
Pressure at port P [% of max]

2
1 = RZMO-A; RZMO-AE; RZMO-AES; HZMO-A
Pressure at port P [bar]

Note:
The presence of counter pressure at port T 1
can affect the effective pressure regulation.

5.2 Pressure/flow diagrams

with reference signal set at Q = 10 l/min
2 = RZMO-A, RZMO-AE, RZMO-AES, HZMO-A

Reference signal [% del max] Flow [l/min]

5.3 Minimum pressure/flow diagrams

with zero reference signal
Minimum regulating pressure [bar]

3 = All the models (except /350)

4 = All the models (only /350) 4

Flow [l/min]
5.4 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.
 6 GENERAL NOTES

RZMO and HZMO proportional valves 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).

7 OPTIONS FOR -A EXECUTION 8 CONNECTIONS FOR -A EXECUTION

7.1 Option /6 optional coil to be used with Atos drivers with power supply 12 VDC SOLENOID POWER SUPPLY CONNECTOR
7.2 Option /18 optional coil to be used with electronic drivers not supplied by Atos PIN Signal description
1 SUPPLY 2 3
2 SUPPLY
1
3 GND

9 ANALOG INTEGRAL DRIVERS -AE - 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 the 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÷+10VDC nominal range (pin D,E), proportional to desired coil current
Monitor output signal - analog output signal proportional to the actual valve’s coil current (1V monitor = 1A coil current)
Following options are available to adapt standard execution to special application requirements:
9.1 Option /I
It provides the 4÷20 mA current reference signal instead of the standard 0÷+10 VDC. Monitor output signal is still the standard 0÷+10VDC.
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.
9.2 Option /Q
It provides the possibility to enable or disable the valve functioning without cutting the power supply (the valve functioning is disabled but the driver cur-
rent output stage is still active). To enable the driver supply a 24VDC on the enable input signal.
9.3 Possible combined option: /IQ

10 ANALOG INTEGRAL DRIVERS -AE - MAIN FUNCTIONS AND ELECTRONIC CONNECTIONS

MAIN CONNECTOR
7 PIN - STANDARD

SCALE BIAS
(driver view)

REGULATIONS AND SWITCHES

(remove the rear cover)

RAMPS

Selector SW Dither frequency ON

SW1 SW2 SW3 SW4 [Hz] SW 쩨 OFF

100 RD 쩨
ON 130 RU 쩨
ON 160
B1 쩨
ON 200 (Standard)
ON ON 230 S1 쩨
ON ON 270
ON ON ON 300 B1: positive bias adjust
ON ON ON 380 S1: positive scale adjust
ON ON ON 430
RU: ramp for increasing reference signal
ON ON ON 470
RD: ramp for decreasing reference signal
ON ON ON ON 500
SW: dither frequency selector (see table beside)
The dither frequency is factory pre-
set at 200 Hz and its regulation may
be adjusted after contact with Atos
technical department

10.1 7 PIN MAIN CONNECTOR

PIN SIGNAL TECHNICAL SPECIFICATIONS NOTES

A V+ Power supply 24 VDC for solenoid power stage and driver logic Input - power supply
B V0 Power supply 0 VDC for solenoid power stage and driver logic Gnd - power supply
AGND Ground - signal zero for MONITOR signal Gnd - analog signal
C (1)
ENABLE Enable (24 VDC) or disable (0 VDC) the driver (for /Q option) Input - on/off signal
D INPUT+ Reference analog input: 0÷+10 VDC maximum range (4÷20 mA for /I option)
Input - analog signal
E INPUT - Normal working range 0÷+10 VDC (4÷20 mA for /I option)
F MONITOR Monitor analog output: 0÷+5 VDC maximum range; 1 V = 1 A Output - analog signal
G EARTH Internally connected to the driver housing

Note: (1) with /Q option ENABLE signal replaces AGND on pin C; MONITOR signal is reffered to pin B.
A minimum time of 60ms to 160ms 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

F065
11 DIGITAL INTEGRAL DRIVERS -AES - 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 coil current (4÷20 mA with cable
break detection, ± 10 mA, ± 20 mA or 0÷20 mA software selectable)
Monitor output signal - analog output signal proportional to the actual valve’s coil current (1V monitor = 1A coil current)

Following options are available to adapt standard execution to special application requirements:
11.1 Option /Q
To enable the driver, supply 24Vdc on pin C referred to pin B: when the enable signal is set to zero the valve status is software selectable, by factory
default the valve functioning is disabled (zero current to the solenoid) but the driver current output stage is still active. For the complete list of selectable
status, see tab. G115.
11.2 Option /Z
It provides, on the 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 24Vdc on pin 3 referred to pin 2: when the enable signal is set to zero the valve status is software selectable, by factory
default the valve functioning is disabled (zero current to the solenoid) but the driver current output stage is still active. For the complete list of selectable
status, see tab. G115.
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 24VDC (pin 11 referred to pin 2): Fault status is not affected by the Enable input signal.

12 DIGITAL INTEGRAL DRIVERS -AES - MAIN FUNCTIONS AND ELECTRONIC CONNECTIONS

COMMUNICATION CONNECTOR
MAIN CONNECTOR 5 PIN 5 PIN
7 PIN - STANDARD PROFIBUS DP (-BP) CANopen (-BC)

(driver view)
SCALE BIAS
(driver view)

LINEARIZATION RAMPS

12 PIN - OPTION /Z
5 PIN
Serial (-PS)
(driver view)

(driver view)

12.1 7 or 12 PIN MAIN CONNECTOR

Standard /Z option
SIGNAL TECHNICAL SPECIFICATIONS NOTES
7pin 12pin
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
D 4 INPUT+ Reference analog input: ±10 VDC / ± 20 mA maximum range software selectable
Default setting 0÷+10 VDC differential input Input - analog signal
E - INPUT - /Z option: common mode INPUT+ referred to AGND
3 ENABLE Enable (24 VDC) or disable (0 VDC) the driver Input - on/off signal
C Ground - signal zero for MONITOR signal
5 AGND signal zero for INPUT+ signal ( only for /Z option) Gnd - analog signal
F 6 MONITOR Monitor analog output: 0÷+5 VDC maximum range; 1V = 1A Output - analog signal
- 7 NC do not connect
- 8 NC do not connect
- 9 VL+ Power supply 24 VDC for driver logic Input - power supply
- 10 VL0 Power supply 0 VDC for driver logic Gnd - power supply
- 11 FAULT Fault (0 VDC) or normal working (24 VDC) Output - on/off signal
G PE EARTH Internally connected to the driver housing
Note: A minimum time of 270 to 340 ms have be considered between the driver energizing with the 24VDC power supply and when the valve is ready
to operate. During this time the current to the valve coils is switched to zero.
12.2 ELECTRONIC CONNECTIONS - 5 PIN COMMUNICATION CONNECTORS
-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

13 DIGITAL INTEGRAL DRIVER -AES-EH - MAIN FUNCTIONS AND ELECTRONIC CONNECTIONS

COMMUNICATION CONNECTOR
MAIN CONNECTOR 4 PIN (input)
7 PIN - STANDARD EtherCAT (-EH)

(driver side)
(driver side)

SCALE BIAS

4 PIN (output)
EtherCAT (-EH)

(driver side)
LINEARIZATION RAMPS
12 PIN - OPTION /Z
5 PIN
Serial (-PS)
(driver side)

(driver side)
Note: for the electronic connections of 7 or 12 pin main connector, see section 12.1

13.1 4 & 5 PIN M12 COMMUNICATION CONNECTORS

Serial (-PS) EtherCAT (-EH)
PIN SIGNAL TECHNICAL SPECIFICATION PIN SIGNAL TECHNICAL SPECIFICATION
1 NC do not connect 1 TX+ Transmitter
2 NC do not connect 2 RX+ Receiver
3 RS_GND Signal zero data line 3 TX- Transmitter
4 RS_RX Valves receiving data line 4 RX- Receiver
5 RS_TX Valves transmitting data line Housing Shield Positioned on control cabinet side

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

-Serial (-PS) PROFIBUS DP

VALVE VERSION -A -AE, -AES -AES/Z EtherCAT (-EH)
or CANopen (-BC) (-BP)

CONNECTOR CODE 666 ZH-7P ZM-7P ZH-12P ZH-5P ZH-5P/BP ZM-4PM/EH

PROTECTION DEGREE IP65 IP67 IP67 IP67 IP67 IP67 IP67
DATA SHEET K500 G110, G115, K500 G115, K500

connectors supplyed with the valve

15 SOFTWARE TOOLS
The driver configuration and parameters can be easily set with the Atos E-SW programming software, available in four different versions according to the
driver’s communication execution: E-SW-PS (Serial), E-SW-BC (CANopen), E-SW-BP (PROFIBUS DP), E-SW-EH (EtherCAT). Programming software
E-SW-BC, E-SW-BP, E-SW-EH for BC, BP and -EH drivers, can be also used to modify the valve’s parameterization through the serial communication inter-
face, without disconnecting the valve from the machine’s bus line.
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.

F065
16 INSTALLATION DIMENSIONS [mm]

ISO 4401: 2000

Mounting surface: 4401-03-02-0-05 666
(see table P005) 
Fastening bolts:
4 socket head screws M5X50 bolts class 12.9 
Tightening torque = 8 Nm
Seals: 4 OR 108 RZMO-A
Ports A, B not used Mass: 2,8 Kg

ZH-7P or ZM-7P



RZMO-AE
RZMO-AES-* (dotted line)


Mass: 4 Kg

ZH-7P or ZM-7P


RZMO-AES-EH*


Mass: 4,1 Kg

 
666
ISO 4401: 2000
Mounting surface: 4401-03-02-0-05
(see table P005) HZMO-A
Fastening bolts:
4 socket head screws M5 bolts class 12.9
Tightening torque = 8 Nm Mass: 2,8 Kg
Seals: 4 OR 108

-PS communication interface, ZH-5P connector

-BP communication interface, ZH-5P/BP connector
-BC communication interface, ZH-5P connector
-EH communication interface (input), ZM-4PM/EH connector  = screw for air bleeding
-EH communication interface (output), ZM-4PM/EH connector  dotted line = 12 pin connector ZH-12P for option /Z

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