Atos spa Table F015-16/E
21018 Sesto Calende, Italy - Fax 0331 920005
Proportional reducing valves type RZGO
direct operated, ISO 4401 size 06
RZGO are 3-way proportional pressure
connector reducing valves, direct operated with
pressure regulation proportional to elec-
tronic reference signal.
They operate in association with electro-
nic drivers, see table which supply the
proportional valve with proper current to
align valve regulation to the reference
signal supplied to the electronic driver.
RZGO-A-010
Power supply connector They are available in different executions:
metallic or plastic, • -A, without integral pressure transducer.
see section 4.7 • -AE, -AES, as -A plus analogue (AE) or
digital (AES) integral electronics ➃.
• -TERS with integral pressure transducer
➂ plus digital electronics ➃ preset in
closed loop, featuring improved static
and dynamic performances.
Communication • -AERS as -TERS but without integral
plastic connector, pressure transducer (predisposed for
see section 4.7 connection of remote pressure
transducer).
The reduced pressure is controlled by the
RZGO-TERS-PS-010/*/H spool ➁ , directly operated by the
Pressure
solenoid ➀.
transducer The integral electronics ensures factory
protection presetting, fine functionality plus valve-to-
(option /H) valve interchangeability and simplified
wiring and installation.
Following communication interfaces ➄ are
1 MODEL CODE available for the digital -AES, -TERS and -
AERS executions:
RZGO – TERS – PS – 010 / 32 / * ** / * • -PS, RS232 serial communication
interface. The valve reference signal is
Proportional pressure Syntethic fluids provided with analogue commands via
reducing valve size 06 WG = water-glycol the 7 (or 12) pins connector ➅
PE = phosphate ester
A = without integral transducer • -BC, CANbus interface
AE = as A plus integral electronics Design number • -BP, PROFIBUS-DP interface
AES = as A plus integral digital electronics Options, see section : In the -BC and -BP interfaces the valve
TERS = with integral digital electronics and for -A execution:
pressure transducer 6 = with 6 VDC coil instead of standard 12VDC coil reference signal is provided via fieldbus;
AERS= as TERS but with remote pressure 18= with 18 V DC coil instead of standard during start up or maintenance, the valves
transducer (to be ordered separately, 12VDC coil can be operated with analogue signals via
for -AE execution:
see tab. G460)
I = current reference (4÷20 mA) the 7 (or 12) pins connector ➅.
Q = enable signal
Communication interfaces (only for AES, TERS and AERS) for -AES, -TERS and -AERS executions: The coils are fully plastic encapsulated
PS = RS232 serial I = current reference 4÷20 mA (only for (insulation class H), and the valves have
BC = CANbus TERS execution)
BP = PROFIBUS-DP antivibration, antishock and weather-proof
Z = double power supply, enable and fault
(12 pin connector) features.
Configuration: C = remote pressure transducer with cur-
0 = size 06 10 = P, A and T ports rent feedback 4÷20 mA (only for AERS Surface mounting: ISO 4401 size 06.
execution) Max flow: 12 l/min.
Pressure range H = with pressure transducer protection Max pressure: 210 bar.
32 = 32 bar 100 = 100 bar 210 = 210 bar (only for -TERS execution)
2 HYDRAULIC CHARACTERISTICS (based on mineral oil ISO VG 46 at 50 °C)
Hydraulic symbols
Valve model RZGO-A RZGO-AE RZGO-AES RZGO-TERS RZGO-AERS
Max regulated pressure (Q = 1 l/min) [bar] 32 100 210 32 100 210
Min regulated pressure [bar] 0,8 (or actual value in T port)
Max pressure at port P [bar] 315
Max pressures at port T [bar] 210
Max flow [l/min] 12
Response time 0 - 100% step signal
[ms] ≤ 45 ≤ 40
(depending on installation) see section 6.4
Hysteresis [% of the max pressure] ≤ 1,5 ≤ 0,3
Linearity [% of the max pressure] ≤3 ≤ 1,0
Repeatability [% of the max pressure] ≤2 ≤ 0,2
Thermal drift (-TERS execution) zero point displacement < 1% at ∆T = 40°C
Above performance data refer to valves coupled with Atos electronic drivers, see section .
F015
3 MAIN CHARACTERISTICS OF PROPORTIONAL PRESSURE REDUCING VALVES TYPE RZGO
Assembly position Any position
Subplate surface finishing Roughness index, flatness ratio 0,01/100 (ISO 1101)
Ambient temperature -20°C ÷ +70°C for -A execution; -20°C ÷ +60°C for -AE and -AES; -20°C ÷ +50°C for -TERS and -AERS
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 18/15 achieved with in line filters of 10 µm and β10 ≥ 75 (recommended)
Fluid temperature -20°C +60°C (standard and /WG seals) -20°C +80°C (/PE seals)
3.1 Electrical characteristics
Coil resistance R at 20°C 3 ÷ 3.3 Ω for standard 12 VDC coil; 2 ÷ 2,2 Ω for 6 VDC coil; 13 ÷ 13,4 Ω for 18 VDC coil
Max solenoid current 2,4 A (1,8 A for version /32) for standard 12 VDC coil; 3 A (2,25 A for version /32) for 6 VDC coil;1 A (0,8 A for version /32) for 18 VDC coil
Max power 40 Watt
Protection degree (CEI EN-60529) IP65 for -A execution; IP65÷67 for -AE, -TERS and AERS executions, depending to the connector type (see sect. 4.7)
Duty factor Continuous rating (ED=100%)
4 INTEGRAL ELECTRONICS OPTIONS AND WIRING
4.1 Option /I
It provides the 4÷20 mA current reference signal and the current feedback signals instead of the standard 0÷10 V. 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. In case of breakage of the reference signal cable,
the valve functioning is disabled.
4.2 Option /Q
Safety option providing the possibility to enable or disable the valve functioning without cutting the power supply.
4.3 Option /Z
Safety option, specifically introduced for -BC and -BP communication interfaces, provides two separated electric power supplies for the digital electronic circuits and
for the solenoid power supply stage. The Enable and Fault signals are also available. The option /Z allows to interrupt the valve functioning by cutting the solenoid
power supply (e.g. for emergency, as provided by the European Norms EN954-1 for components with safety class 2), but keeping energized the digital electronic cir-
cuits, thus avoiding fault conditions of the machine fieldbus controller.
For the electrical wiring, see tab. G115 and G205.
4.4 Option /C
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.
4.5 Option /H
Ruggerized execution for harsh environments, providing a special housing to protect the pressure transducer from accidental shocks.
4.6 Integral electronics wiring
For the electric wiring shielded cables must be provided: the shield must be connected to the power supply zero on the generator side, see tab. F003
POWER SUPPLY CONNECTOR
PIN SIGNAL DESCRIPTION -AE, -AES, -TERS, -AERS -AE/I, -TERS/I, -AERS/I -AE/Q
A Power supply 24 VDC Stabilized: +24VDC
B Power supply zero Filtered and rectified: Vrms = 21 ÷ 33 (ripple max 2Vpp)
C Signal zero Reference 0 VDC Reference 0 VDC Enabling input normal working 9 ÷ 24 VDC
D Input signal +
0 ÷ 10 VDC 4 ÷ 20 mA 0 ÷ 10 V
E Input signal -
Monitor 0 ÷ 10 V referred to pin C (signal 0 VDC) 0 ÷ 5 V (-AE/I) 4 ÷ 20 mA (-TERS/I) 0 ÷ 5 V referred to pin B (signal 0 VDC)
F driving current (for -AE, -AES) 1V = 1A 1V = 1A 1V = 1A
regulated pressure (for -TERS, -AERS) 1V = 10% of regulated pressure 4 ÷ 20 mA = 0÷100% of regulated pressure –
G Earth Connect only when the power supply is not conform to VDE 0551 (CEI 14/6)
COMMUNICATION INTERFACE CONNECTORS (-AES, -TERS, -AERS) PRESSURE TRANSDUCER CONNECTOR (-AERS) see section
Communication -PS (RS232) -BC (CAN Bus) -BP (PROFIBUS-DP) PIN standard version option /C
options male connector male connector female connector (reverse key)
1 Pressure signal Pressure signal
NC CAN_SHLD +5V
1 Not Connected Shield Termination voltage 2 Reserved (do not connect) Reserved (do not connect)
NC NC LINE -A 3 Power supply Power supply
Signal description
2
Not Connected Not Connected Bus line (high)
Pin number
4 GND Reserved (do not connect)
RS_GND CAN_GND DGND Signal zero data line
3 Note:
Signal zero data line Signal zero data line / termination voltage
- electrical signals (e.g. feedback signals) processed by valve electro-
RS_RX CAN_H LINE-B nics must not be used to switch off the machine safety functions. This
4
Valves receiving data line Bus line (high) Bus line (low) is in accordance with the European standards (Safety requirements of
fluid technology systems and components - hydraulics, EN 982).
5 RS_TX CAN_L SHIELD - installation notes with basic information for commissioning and start-up
Valves transmitting data line Bus line (low) Shield are always supplied with the relevant components, together with the
specific technical tables.
4.7 Model codes of power supply and communication connectors
PRESSURE
-AES/Z, -TERS/Z, -RS232 (-PS)
VALVE VERSION -A -AE, -AES, -TERS, -AERS PROFIBUS (-BP) TRANSDUCER
-AERS/Z OR CANBUS (-BC)
only for AERS
CONNECTOR CODE SP-666 SP-ZH-7P (1) SP-ZM-7P (1) SP-ZH-12P (1) SP-ZH-5P (1) SP-ZH-5P/BP (1) SP-ZH-4P-M8/5 (1)(2)
PROTECTION DEGREE IP65 IP67 IP66 IP65 IP67 IP67 IP67
(1) to be ordered separately (2) M8 connector moulded on cable 5 mt lenght
5 PROGRAMMING DEVICES
The functional parameters of the digital valves, as the bias, scale, ramp and linearization of the regulation characteristic, can be easily set and optimized with
graphic interface by using the following software programming devices suitable for standard PC:
KIT-E-SW-PS for electronics with RS232 interface (option -PS);
KIT-E-SW-PS-TERS only for -TERS-PS electronics - simplified version of KIT-E-SW-PS with only bias and scale settings
KIT-E-SW-PS-TERS/U as KIT-E-SW-PS-TERS with serial to USB interface
KIT-E-SW-BC for electronics with CANbus interface (option -BC)
KIT-E-SW-BP for electronics with PROFIBUS-DP interface (option -BP)
see tab. G500 for complete information about the programming device kits and for the PC minimum requirements.
Only for the -BC and -BP communication options, the functional parameters can be alternatively set via fieldbus through the machine control unit, using the stan-
dard communication protocol implemented by Atos.
The protocol operating instructions to be implemented in the standard protocols (DS301V4.02, DSP408 for CANbus and DPVO for PROFIBUS-DP) are described in
the user manuals MAN-S-BC (for -BC option) and MAN-S-BP (for -BP option) supplied with the relevant programming device kits.
The above programming devices have to be ordered separately.
6 DIAGRAMS (based on mineral oil ISO VG 46 at 50 °C)
6.1 Regulation diagrams
1 2
with flow rate Q = 1 l/min
Pressure at port A [% of the max]
Pressure at port A [% of the max]
1 = RZGO-A, RZGO-AE, RZGO-AES
2 = RZGO-TERS, RZGO-AERS
Notes:
1) For the valves with digital electronics the
regulation characteristic can be modified by
setting the internal software parameters, see
tab. G500.
2) For executions -A, -AE and -AES the presen-
ce of counter pressure at port T can alter
the effective pressure regulation.
Reference signal [% of the max] Reference signal [% of the max]
6.2 Pressure/flow diagrams
Regulated pressure at port A [% of the max]
Regulated pressure at port A [% of the amx]
3 4
with reference pressure set with Q = 1 l/min
3 = RZGO-A, RZGO-AE, RZGO-AES
4 = RZGO-TERS, RZGO-AERS
[A→T] [P→A] [A→T] [P→A]
Flow [l/min] Flow [l/min]
6.3 Pressure drop/flow diagram
5 6
with reference signal “null”
Differential pressure P-A [bar]
Differential pressure A-T [bar]
5 = Pressure drops vs. flow P-A (for all the
executions)
6 = Pressure drops vs. flow A-T (for all the
executions)
Flow [l/min] Flow [l/min]
6.4 Dynamic response
The response times in section have to be considered as average values.
The integral closed loop control of -TERS and -AERS valves is affected by the stiffness of the hydraulic circuit: greater is the stiffness of the circuit,
the better are the perfomances. The valves dynamic performances can be optimized depending on the stiffness characteristics of the hydraulic cir-
cuit, by setting the internal software parameters. This regulation is particularly helpful in case of circuits with accumulators and/or with great fluid
volumes and/or with long hoses.
F015
7 INSTALLATION DIMENSIONS [mm]
Mounting surface
ISO 4401-AB-03-4 size 06 RZGO-A
Fastening bolts: 4 socket head screws M5x50
Seals: 4 OR 108
Ports P, A, T: Ø = 5 mm
Port B: not used
Mass: 1,8 Kg
Option /Z
RZGO-AE
RZGO-AES-*
(dotted line)
Mass: 2,5 Kg
Option /Z
RZGO-TERS-*
Mass: 2,7 Kg
Option /Z
RZGO-TERS-*
option /H
Mass: 2,8 Kg
Option /Z
RZGO-AERS-*
Mass: 2,6 Kg
8 ELECTRONIC DRIVERS FOR RZGO-A
Valve model -A -AE -AES -TERS -AERS
Drivers model E-MI-AC-01F E-BM-AC-01F E-ME-AC-01F E-RP-AC-01F E-RI-AE E-RI-AES E-RI-TERS E-RI-AERS
Data sheet G010 G025 G035 G100 G110 G115 G205
For complete information about the drivers characteristics and relevant options, see the technical data sheet specified in the table.
9 MOUNTING PLATES
Gas Ports Ø Counterbore Mass
Model Ports location [mm]
A-B-P-T [kg]
A-B-P-T
BA-202 Ports A, B, P, T underneath; 3/8" – 1,2
BA-204 Ports P, T underneath; ports A, B on lateral side 3/8" 25,5 1,8
BA-302 Ports A, B, P, T underneath; 1/2" 30 1,8
The subplates are supplied with 4 bolts M5x50. For furhter details see table K280.
11/05
