Technical Information
Electrohydraulic Actuators for PVG32, PVG100 and PVG120
PVE-EX Ex db version
powersolutions.danfoss.com
Technical Information
Electrohydraulic Actuators PVE-EX
Revision history |
Table of revisions |
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Date |
Changed |
Rev |
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October 2017 |
Major revision |
0102 |
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January 2017 |
First edition |
0101 |
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2 | © Danfoss | October 2017 |
BC00000393en-US0102 |
Technical Information |
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Electrohydraulic Actuators PVE-EX |
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Contents |
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General information |
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PVE-EX Introduction........................................................................................................................................................................ |
5 |
Literature Reference........................................................................................................................................................................ |
5 |
Product Certification....................................................................................................................................................................... |
5 |
Protection............................................................................................................................................................................................ |
5 |
Warnings.............................................................................................................................................................................................. |
5 |
Nameplate Description (PVE-EX db version).......................................................................................................................... |
7 |
Description of the EX Code (PVE-EX db).................................................................................................................................. |
8 |
EPL / Equipment Category............................................................................................................................................................ |
8 |
Functionality |
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PVE-EX functionality........................................................................................................................................................................ |
9 |
PVE hydraulic subsystems........................................................................................................................................................ |
9 |
PVE-EX control |
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PVE-EX: PVE control by voltage................................................................................................................................................. |
10 |
PVE-EX ON/OFF activation.......................................................................................................................................................... |
10 |
PVE-EX: PVE hysteresis.................................................................................................................................................................. |
11 |
Specifications |
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7-pin Layout..................................................................................................................................................................................... |
12 |
4-Pin layout...................................................................................................................................................................................... |
12 |
Radiometric Control Signal........................................................................................................................................................ |
12 |
Radiometric Fixed Control Signal (0-10 V)............................................................................................................................ |
12 |
Radiometric Control Signal – On/Off Activation................................................................................................................. |
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Adjustment/calibration............................................................................................................................................................... |
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Technical data |
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Fluid specification.......................................................................................................................................................................... |
14 |
PVE-EX electrical data................................................................................................................................................................... |
14 |
Reaction times................................................................................................................................................................................. |
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Adjustment/calibration............................................................................................................................................................... |
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Installation |
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PVE-EX Dimensions ...................................................................................................................................................................... |
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Mounting of PVE-EX...................................................................................................................................................................... |
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Cable................................................................................................................................................................................................... |
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Mounting of Cable................................................................................................................................................................... |
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Cable Gland...................................................................................................................................................................................... |
18 |
Supplied Built-in Cable Gland.............................................................................................................................................. |
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PVE-EX Pre-certified Cable Gland........................................................................................................................................ |
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Mounting of PVG............................................................................................................................................................................ |
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Mounting options and guidelines...................................................................................................................................... |
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Direction of cable exit............................................................................................................................................................. |
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Safety and monitoring |
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Safety in application..................................................................................................................................................................... |
21 |
Safety guidelines............................................................................................................................................................................ |
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PVE-EX fault monitoring and reaction.................................................................................................................................... |
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Control signal monitoring..................................................................................................................................................... |
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Transducer supervision.......................................................................................................................................................... |
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Supervision of spool position............................................................................................................................................... |
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PVE-EX fault monitoring......................................................................................................................................................... |
23 |
Direction indication feedback (-DI)......................................................................................................................................... |
23 |
Internal and external earth-connection |
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Earthing terminals......................................................................................................................................................................... |
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Internal earth-connection........................................................................................................................................................... |
25 |
External earth-connection.......................................................................................................................................................... |
26 |
Maintenance, service, troubleshooting |
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PVE-EX installation, start-up, and operation ....................................................................................................................... |
27 |
© Danfoss | October 2017 |
BC00000393en-US0102 | 3 |
Technical Information |
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Electrohydraulic Actuators PVE-EX |
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Contents |
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Warnings |
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PVE-EX warnings............................................................................................................................................................................. |
28 |
Code numbers |
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PVE-EX Ex part numbers.............................................................................................................................................................. |
29 |
Declaration of confromity |
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EC-Declaration of Conformity.................................................................................................................................................... |
30 |
Certificates |
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EU-Type Examination Certificate.............................................................................................................................................. |
32 |
IECEx Certificate of Conformity................................................................................................................................................. |
35 |
Safety certificate J2014084......................................................................................................................................................... |
39 |
Safety certificate J2014085......................................................................................................................................................... |
40 |
4 | © Danfoss | October 2017 |
BC00000393en-US0102 |
Technical Information
Electrohydraulic Actuators PVE-EX
The Danfoss PVE-EX is a PVE series 7 actuator for PVG32, PVG100 and PVG120.
The PVE-EX is an explosion proved PVE designed to be used in harsh environments like mining and oil and gas industries.
The PVE-EX has been certified by NEMKO, IECEx and MA.
Literature reference for PVG and PVE products
Title |
Type |
Order number |
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PVG 32 Proportional Valve Groups |
Service Manual |
11039167 |
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PVG 100 Proportional Valve Groups |
Service Manual |
11048807 |
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PVG 32 Proportional Valve Groups |
Technical Information |
520L0344 |
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PVG 100 Proportional Valve Groups |
Technical Information |
520L0720 |
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PVG 120 Proportional Valve Groups |
Technical Information |
520L0356 |
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PVG 32 Metric ports |
Technical Information |
11051935 |
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The PVE-EX db version is developed according to and in compliance:
•EN ISO 4413:2010 Hydraulic fluid power - General rules and safety requirements for systems and their components
•EN 60079-0:2012/A11:2013, IEC 60079-0:2011 Explosive atmospheres - Part 0: Equipment - General requirements
•EN/IEC 60079-1:2014 Electrical apparatus for explosive gas atmospheres-part 1: Flameproof enclosures “d”
Installation and Maintenance standards:
•EN/IEC 60079-14 Explosive atmospheres - Part 14: Electrical installations design, selection and erection
•EN/IEC 60079-17 Explosive atmospheres - Part 17: Electrical installations inspection and maintenance
The PVE-EX is in conformity with listed EU Directive(s):
•EMC Directive 2004/108/EC
•EN/IEC 61000-6-2:2005 Electromagnetic compatibility (EMC) - Part 6-2: Generic standards - Immunity for industrial environments
•EN 61000-6-4:2007/A1:2011, IEC 61000-6-4:2006 Electromagnetic compatibility (EMC) - Part 6-4: Generic standards - Emission standard for industrial environments
All PVE-EX modules comply with protection class IP66 and IP69k according to EN60529. However, in particularly exposed applications, protection in the form of shielding is recommended.
Before implementing actuators in any application, read all warnings.
Warnings are listed next to the most relevant section and repeated in Warnings chapter.
© Danfoss | October 2017 |
BC00000393en-US0102 | 5 |
Technical Information
Electrohydraulic Actuators PVE-EX
General information
Do not regard the warnings as a full list of potential dangers. Depending on the application and use, other potential dangers can occur.
W Warning
All brands and all types of directional control or proportional valves, which are used in many different operation conditions and applications, can fail and cause serious damage.
Analyze all aspects of the application. The machine builder/system integrator alone is responsible for making the final selection of the products and assuring that all performance, safety and warning requirements of the application are met.
The process of choosing the control system and safety levels is governed by the machine directives EN 13849 (Safety related requirements for control systems).
6 | © Danfoss | October 2017 |
BC00000393en-US0102 |
Technical Information
Electrohydraulic Actuators PVE-EX
General information
PVE-EX Ex db version, Group I (left) and Group II (right)
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Danfoss |
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6430 Nordborg, Denmark |
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Type PVEx-yy-EX |
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111xxxxx |
wwyyd47xxxx |
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5 |
Ta -40° to + 60°C |
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xx-yyVDC |
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5 |
6 |
0470 |
Ex db I Mb |
7 |
6 |
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Ԑx I M 2 |
8 |
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Presafe 14ATEX5153X |
Thread: |
10 |
9 |
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IECEx PRE14.0008X |
"M20" |
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MA: J201408x |
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Danfoss |
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6430 Nordborg, Denmark |
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Type PVEx-yy-ZZ |
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111xxxxx |
wwyyd47xxxx |
3 |
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Ta -40° to + 60°C |
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xx-yyVDC |
4 |
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Ex db IIB T5 Gb |
7 |
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0470 |
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Ԑx II 2G |
8 |
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Presafe 14ATEX5153X |
Thread: |
10 |
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IECEx PRE14.0008X |
"M20" |
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MA: J201408x |
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V310 459
Nameplate legend
Number |
Description |
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1 |
PVE-EX type, see the table below. |
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2 |
Part Number |
Example: 111xxxxx |
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3 |
Production date and serial number |
Example: 42 12 C xxxxxx |
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Week: 42 Year: 2012 Day: C=Wednesday (A=Monday) serial Number |
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4 |
Supply voltage |
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5 |
Ambient temperature range |
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Notified body |
Example: NEMKO/Presafe |
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7 |
IECEx Equipment Group and protection category X-marking |
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8 |
ATEX Equipment Group and protection category X-marking |
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Ex Certificate Number |
Specific conditions for safe use (“X”-mark) |
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Originally supplied “SD cable glands” may not provide sufficient |
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clamping. User shall provide additional clamping of the cable to |
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ensure that pulling and twisting is not transmitted to the |
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terminations. |
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10 |
Thread |
Threaded entry: M20 x 1.5 |
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Determined temperature at entry point is +76º C, use appropriate |
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cables and cable gland |
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PVE-EX Ex db types with part numbers, Group I and Group II
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Group I |
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Group II |
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Type |
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Part No. |
Type |
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Part No. |
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PVEO-EX-12V |
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11156462 |
PVEO-EX-24V |
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11156467 |
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PVEO-EX-24V |
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11123165 |
PVEH-EX |
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11156463 |
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© Danfoss | October 2017 |
BC00000393en-US0102 | 7 |
Technical Information
Electrohydraulic Actuators PVE-EX
General information
PVE-EX Ex db types with part numbers, Group I and Group II (continued)
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Group I |
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Group II |
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Type |
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Part No. |
Type |
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Part No. |
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PVEO-DI-EX-24V |
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11156461 |
PVES-EX |
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11156464 |
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PVEH-DI-EX |
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11127696 |
PVEH-U-EX |
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11156465 |
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PVEH120-DI-EX |
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11166357 |
PVES-U-EX |
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11156466 |
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PVEO120-DI-EX-12V |
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11170401 |
PVES120-U-EX |
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11156568 |
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PVEO120-EX-24V |
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11156468 |
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PVES120-EX |
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11156567 |
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PVEH120-EX |
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11161000 |
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IEC marking of the EX code db version
Description |
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IEC Marking |
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Explosion protection marking |
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Ex |
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Protection type |
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db |
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Equipment Group |
I |
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IIB |
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T-class |
N/A |
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T5 |
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Equipment Protection Level (EPL) |
Mb |
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Gb |
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EU marking of the EX code db version
Description |
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EU Marking |
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CE conformity marking |
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CE |
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Identification number of notified body involved in production control stage |
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0470 |
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Explosion protection marking |
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Equipment Group |
I |
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II |
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Equipment Category |
M2 |
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2G |
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EPL/Equipment Category
Definition |
Level of |
Typical zone of |
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IEC |
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EU |
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protection |
application |
EPL |
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Group |
Category |
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Group |
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Mines |
very high |
N/A |
Ma |
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I |
M1 |
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I |
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high |
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Mb |
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M2 |
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very high |
0 |
Ga |
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1G |
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Gas atmospheres |
high |
1 |
Gb |
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II |
2G |
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II |
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enhanced |
2 |
Gc |
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3G |
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8 | © Danfoss | October 2017 |
BC00000393en-US0102 |
Technical Information
Electrohydraulic Actuators PVE-EX
The PVE-EX is an electro mechanical device, meaning that functionality is depending on mechanical, hydraulic, electrical and control conditions given by PVE, PVG, application and vehicle. The result of this is that implementing operation and safety conditions also must include vehicle specific considerations.
The hydraulic subsystem is used for moving the spool and thereby open the valve for work flow.
Pilot oil diagram
Set point
Electronics |
Pp |
NC1
NC3
Spool
LVDT
NO4
NO2
1.0 [0.039]
Tank
V310073.A
The hydraulic subsystem moves the spool and thereby opens the valve for work flow. The heart in the hydraulic subsystem is the solenoid valve bridge which controls the Pilot Pressure (Pp) on spool ends. It consist of four poppet valves, the two upper are normally closed (NC) and the two lower are normally open (NO).
The Pp will work against the PVBS neutral spring when the spool is moved out of blocked (neutral) and together with the spring when going in blocked. This combined with a larger opening in the NO than in the NC will give a faster movement towards blocked than out of blocked.
When the PVE is powered the solenoids are all put in closed state. To move the PVBS to the right NC1 and NO4 are opened and NC3 and NO4 are kept closed.
The activation of the solenoid valves represents oil consumption and thereby also a pressure drop in the pilot oil gallery. By simultaneous use of multiple PVE the Pp can fall and result in performance problems.
The two check valves next to the NO are anti-cavitation valves. The orifice to tank reduces tank pressure spikes and can also be used for ramp function.
W Warning
Obstacles for the Pilot oil pressure (Pp) can have direct influence on spool control. Reduced Pp will limit spool control. Too high Pp can harm the PVE.
© Danfoss | October 2017 |
BC00000393en-US0102 | 9 |
Technical Information
Electrohydraulic Actuators PVE-EX
PVE characteristic – control by voltage
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PVEU |
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2.5V |
5V |
7.5V fixed |
kwa1463778286972
The PVEO has two independent powered sets of solenoids. By powering a set of pins the actuator is activated. By standard mounted PVE the A set gives full flow on A port and B gives on B port. Both directions activated at same time will keep the spool in neutral.
10 | © Danfoss | October 2017 |
BC00000393en-US0102 |
Technical Information
Electrohydraulic Actuators PVE-EX
PVE-EX control
PVEO schematic and characteristic
kwa1464035903701
W Warning
The PVEO is designed to have UDC=12 V or UDC=24 V.
The solenoids might be activated by voltage down to 6 V.
The controllability of the PVE depends on the solenoid valve bridge and the electronic capacity of the module. Hysteresis is a measurement on spool position precision and repeatability. Hysteresis is not a description of position maintaining.
PVES (left) and PVEH (right) position diagrams
kwa1464034339820 |
The PVES has an ASIC closed loop circuit and NC-S solenoids.
The PVEH has an ASIC closed loop circuit and NC solenoids.
© Danfoss | October 2017 |
BC00000393en-US0102 | 11 |
Technical Information
Electrohydraulic Actuators PVE-EX
7-pin connector
1 2 |
3 4 |
5 6 7 |
4-Pin connector, Group II
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Versions |
Pin 1 |
Pin 2 |
Pin 3 |
Pin 4 |
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PVEO-EX-24V, PVEO120-EX-24V |
UDC-A |
UDC-B |
GND |
— |
PVEH/-EX/-U-EX, PVES/-EX/-U-EX, PVES120/-EX/-U-EX, PVEH120-EX |
Us |
Vbat |
GND |
Error |
Radiometric control signal for PVEH/PVES
PIN |
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Function of the pin |
Versions |
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1 |
US |
Demand signal |
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2 |
Vbat2 |
Supply voltage to solenoid valves (can be switched off separately) |
PVES-EX |
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PVEH-EX |
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3 |
GND |
Ground |
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PVES120-EX |
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4 |
Error |
Error pin (See PVE-EX fault monitoring on page 23) |
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PVEH120-EX |
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5 |
GND DI-A |
Signal low when spool is stroked to A side (Only for DI versions) |
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PVEH-DI-EX |
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6 |
GND DI-B |
Signal low when spool is stroked to B side (Only for DI versions) |
PVEH120-DI-EX |
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7 |
Vbat* |
Supply voltage to DI versions |
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* Pin 2 and 7 shall be connected together for PVE modules without the DI function.
Signal voltage (US) Control
Neutral |
Q: P → A |
Q: P → B |
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US = 0.5 • UDC |
US = (0.5 → 0.25) • UDC |
US = (0.5 → 0.75) • UDC |
Radiometric control signal for PVEH/PVES
PIN |
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Function of the pin |
Versions |
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1 |
US |
Demand signal |
PVEH-U |
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2 |
Vbat |
Supply Voltage |
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PVES-U-EX |
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3 |
GND |
Ground |
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PVES120-U-EX |
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4 |
Error |
Error pin (See PVE-EX fault monitoring on page 23) |
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12 | © Danfoss | October 2017 |
BC00000393en-US0102 |
Technical Information
Electrohydraulic Actuators PVE-EX
Specifications
Signal voltage (US) Control
Neutral |
Q: P → A |
Q: P → B |
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US = 5 V |
US = 5 V → 2.5 V |
US = 5 V → 7.5 V |
Radiometric control signal for PVEO versions
PIN |
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Function of the pin |
Versions |
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1 |
UDC(A) |
Input signal direction A |
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2 |
UDC(B) |
Input signal direction B |
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3 |
GND |
Ground |
PVEO-EX-12V |
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4 |
GND |
Ground |
PVEO-EX-24V |
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PVEO-DI-EX-24V |
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5 |
DI-A |
Signal low when spool is stroked to A side (Only for DI |
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PVEO120-EX-24V |
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versions) |
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PVEO120-DI-EX-12V |
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6 |
DI-B |
Signal low when spool is stroked to B side (Only for DI |
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versions) |
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7 |
Vbat |
Supply voltage to DI versions |
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Signal voltage Control
Signal voltage |
Neutral |
Q: P → A |
Q: P → B |
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A |
0 |
UDC (A) |
0 |
B |
0 |
0 |
UDC (B) |
The PVE-EX is pre-calibrated from the factory to be inside the dead band of the proportional valve. The position sensor built into the PVE-EX cannot be adjusted by user. Any biasing of the position has to be incorporated in the demand signal.
© Danfoss | October 2017 |
BC00000393en-US0102 | 13 |
Technical Information
Electrohydraulic Actuators PVE-EX
The following data is from typical test results. Mineral based hydraulic oil with a viscosity of 21 mm2/s [102 SUS] and a temperature of 50 °C [122 °F] was used for the hydraulic system testing.
W Warning
The PVE is designed for use with pilot oil supply. Use without oil supply can harm the system.
Intermission is no longer than 5 seconds and not more than once per minute.
Oil consumption
Supply voltage |
Pilot oil flow per |
PVEO Versions |
PVEH Versions |
PVES Versions |
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PVE-EX Function |
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l/min |
l/min |
l/min |
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Without |
Neutral |
0 |
0 |
0 |
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With |
Locked |
0.1 |
0.1 |
0.1 |
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Actuating |
0.7 |
0.7 |
0.8 |
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Oil viscosity, Oil temperature and Pilot pressure
Parameter |
Minimum |
Maximum |
Range |
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Oil viscosity |
4 mm2/s |
460 mm2/s |
12 - 75 mm2/s |
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[39 SUS] |
[2128 SUS] |
[65 - 347 SUS] |
Oil temperature |
-30 ˚C |
90 ˚C |
30 to 60 ˚C |
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[-22 ˚F] |
[194 ˚F] |
[86 to140 ˚F] |
Pilot pressure (relative to T pressure) |
10 bar |
15 bar |
Nominal 13.5 bar |
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[145 psi] |
[217 psi] |
[196 psi] |
Intermittent pressure peaks up to |
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50 bar [725 psi] |
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Filtering in the hydraulic system
Required operating cleanliness level (ISO 4406, 1999 version) |
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18/16/13 |
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Specification |
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PVEO Versions |
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PVEH and PVES Versions |
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Grade of enclosure EN 60529 |
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IP 66 and IP 69k |
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Ambient temperature |
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Minimum |
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-40 °C [-40 °F] |
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Maximum |
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60 °C [140 °F] |
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Maximum (submitting) surface temperature, T5 |
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100 °C [212 °F] |
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Supply voltage |
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Rated |
12 / 24 VDC |
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11-30 VDC |
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Range PVEx-EX-12V |
11-16 VDC |
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N/A |
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Range PVEx-EX-24V |
22-30 VDC |
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N/A |
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Maximum ripple |
5% |
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5% |
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Current consumption at |
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Typical |
0.74 A / 0.37 A |
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0.57 A / 0.33 A |
rated voltage (12/24 VDC) |
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Minimum |
0.55 A / 0.29 A |
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N/A |
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Maximum |
0.82 A / 0.42 A |
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N/A |
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Power consumption at rated voltage |
9 W |
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7 W |
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Current via DI |
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0.1 A |
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0.1 A |
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Input impedance in relation 0.5 x UDC |
N/A |
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12 kΩ |
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Fault monitoring |
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Maximum load |
N/A |
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60 mA |
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Reaction time at fault |
N/A |
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500 ms |
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PVE-EX electrical data |
For more information about PVEO, PVES and PVEH versions please refer to Nameplate description. |
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14 | © Danfoss | October 2017 |
BC00000393en-US0102 |