® Vickers Accessories Power Amplifier EEA-PAM-5**-A-32 for Proportional Control Valves Contents General Description p The following power amplifier models are covered in this catalog The power amplifier has five voltage g it inputs (one inverting) and a current ( i ti ) d t Power Amplifier For Proportional Valve input for 0-20 mA. Ad in ut for 020 m . djjustments for set ustments for set zero point or deadband compensation EEA-PAM-513-A-32 KCG-3, 1* series and for gain allow the amplifier to be KCG-6/8, 1* series easily tuned to the proportional control KX(C)G-6/8, 1* series valve valve. The The ramp ramp ffunc nction tion genera generator tor can can EEA-PAM-523-A-32 KTG4V-3...H*, 6* series be switched on and off using the “ramp KDG4V-3...H*, 6* series enable” control. KDG5V-5/7/8, 1* series Monitor Monitor p poi oints nts o on n t the he front front p panel anel a allow llow EEA-PAM-525-A-32 KTG4V-5...H*, 3* series measurement of the conditioned KDG4V-5...H*, 3* series command signal, and either of spool g position L iti LVDT signal or (for valves VDT i l (f l EEA-PAM-533-A-32 KFTG4V-3, 2* series without LVDT) of solenoid current. KFDG4V-3, 2* series ( (“Conditioned command si Conditioned command signal gnal” is the is the input signal modified according to EEA-PAM-535-A-32 KFTG4V-5, 2* series settings of set zero point or deadband KFDG4V-5, 2* series com compensat pens tion ion, ga g in in an nd d ramp r mp EEA-PAM-541-A-32 KHDG5V-5/7/8, 2* series functions.) With zero-lapped main spool Ft Features EEA-PAM-553-A-32 KSDG4V-3, 1* series � �Uf User-friendly front panel with all the i dlf t lithllth EEA-PAM-561-A-32 KFDG5V-5, 3* series necessary adjustments, LEDs and KFDG5V-7, 1* series monitor points monitor oints � Electronic overload protection with EEA-PAM-568-A-32 KFDG5V-8, 1* series a aut tomatic omatic rese reset t EEA-PAM-571-A-32 CVU-**-EFP1-3* � Pulse width modulation for high g ef ff ficiency i i EEA-PAM-581-A-32 KHDG5V-5/7/8, 2* series � � Can be e Can be eq quipped with plu uied with lug g-in -in modules for special functions � Switchable ramp function generator for controlling rates of increase and decrease of output � 24V DC power supply � Either current or voltage input signals � Standard input and output signals This product has been designed and tested to meet specific standards outlined in the European Electromagnetic Compatibility Directive (EMC) 89/336/EEC, amended by 91/263/EEC, 92/31/EEC and 93/68/EEC, article 5. For instructions on installation requirements to achieve effective protection levels, see this leaflet and the Installation Wiring Practices for Vickers Electronic Products leaflet 2468. Wiring practices relevant to this Directive are indicated by Electromagnetic Compatibility (EMC). GB-2464 Rev. March 1996 Front Panel Model 513 523, 525, 533, 535, 561, 568 and 581 LEDs [1] 24V supply voltage, green [2] 15V control voltage, green 24V 15V 24V 15V [3] Solenoid output enabled, yellow [4] Solenoid output overload, red [5] LVDT failure, red [6] Drive to solenoid, yellow Potentiometers Potentiometers [17] Zero adjust [7] Deadband compensation, flow from P to B [18] Gain [8] Deadband compensation, flow from P to A [9] Gain, flow from P to B [10] Gain, flow from P to A LED [11] Ramps enabled, yellow Potentiometers [12] Acceleration ramp [13] Deceleration ramp t t Monitor points � Monitor point � t t [19] Solenoid current MP2 [14] Conditioned command signal MP1 [15] Common ground 0V [16] Spool position MP2 (except for 523/525: solenoid current) 571 541, 553 24V 15V 24V 15V Potentiometer Potentiometers [21] Deadband [20] Adjust valve zero compensation [22] Gain t t t t � Ø 2 mm (0.0787� dia.) sockets Warning: Electromagnetic Compatibility (EMC) It is necessary to ensure that the unit is wired up in accordance with the connection arrangements shown in this leaflet. For effective protection, the user’s electrical cabinet, the valve subplate or manifold and the cable screens should be connected to efficient earth (ground) points. The metal 7-pin connector part no. 934939 should be used for the integral amplifier. In all cases, both valve and cable should be kept as far away as possible from any source of electromagnetic radiation such as cables carrying heavy current, relays and certain kinds of portable radio transmitters, etc. Difficult environments could mean that extra screening may be necessary to avoid the interference. 2 Electrical Block Diagram EEA-PAM-523/525-A-32 533/535 561/568 571 Note: This is a typical diagram and all the features depicted may not be applicable 581 to all amplifiers, (e.g. LVDTs and dither) EEA-PAM-513-A-32 Gain z22 +15V; 50 mA �15V b32 + z2 +10V; 5 mA 24V z32 Ramps b2 –10V; 5 mA 24V DC b30 b22 –15V; 50 mA z30 24V z24 z12 Alarm output 24V Close to b20 Drive zero signal indicator enable drive b12 Ramp active indicator Zero Enable ramps Overload Enabled point 100� z6 Gain 47kΩ AB b6 Ramps b8 z28 Acc. Dec. b10 z26 z8 EEA-PAM-541-A-32 AB b28 553 Controller z10 b26 b4 Deadband Enable ramps z4 Zero point compensation z22 Solenoid +15V current z14 b24 z16 MP 1 LVDT pilot b18 Command signal monitor point b14 z18 Output monitor point b16 LVDT main MP 2 Comm Command signals and outputs nd sign ls nd o tp ts All models except 553 and 571 All models except 553 nd 571 553 553 571 571 Non-inverting voltage Non-inverting current Inverting voltage Secondary pins Output b6/8/10 or z8 z6 z10 � bz4 � bz4 V Valve alve Pt P to A oA Pt P to B oB closed � bz4 � � N/A � bz4 A to B � bz4 Pt P to B oB Pt P to A oA and nd � bz4 B to A B to A � � N/A 3 Operating Data Power supply: Nominal 24V DC x 50W V - V 20 - 40V (incl. pk.-to-pk. ripple �10% max.) min. max. Amplifier shut-down <18V DC Protection Reverse-polarity Signal sources: z22 & b22 �15V x 50 mA max. (pk.-to-pk. ripple 50 mV) z2 & b2 �10V (�1%) x 5 mA max. (pk.-to-pk. ripple 20 mV) Temperature drift �1 mV/�C (�0,5 mV/�F) 0-50�C (32 - 122�F) All outputs short-circuit protected Command inputs Voltage: Direct-V b8, b6, z8 & b10 Inverting-V z10 U - U 0� 10V min. max. z Input 47 k� z6: Current Range, I 0� 20 mA z Input 100� Power drive = PWM short-circuit protected Max. solenoid current See table on next page Current at zero (0V command signal on MP1) See table on next page Dither Factory-set Deadband compensation See table on next page Gain See table on next page Ramp-time adjustment: Factory setting Min. � 50 ms 50 ms - 5s min. - max. 50 ms - 5s min. - max. Overload detection Automatic reset Drive: z24 Enabled �9,8 - �40V Disabled z24 Open circuit or �4,5V z Input 22 k� Ramps: b24 Enabled �9,8 - �40V b24 Disabled Open circuit or �4,5V z Input 22 k� Command signal monitor point: MP1 Front-panel & b18 Monitor signal after deadband compensation (minimum setting), gain and ramps: ^ 0 - 10V (10V I ) = max. z Output 10 k� short-circuit protected Output monitor point : MP2 Front panel & z18 513/523/525 (without LVDT): 1 V/A Other types (with LVDT): �10V at full stroke z Output 10 k� short-circuit protected 4 Ramp-active indicator b12 Output ��10V Output ��10V Output = 0V (�2V ripple) z Output 10 k� Drive signal zero indicator b20 Drive signal at null (within deadband limits) Output = Supply minus 1,5V; I = 50 mA max. Drive active Output = 0�2V z Output resistance 50� Alarm output z12 Set alarm Enable amplifier (on pin z24) when switching power on Signal HIGH when alarm is activated: Output = Supply volts minus 2 volts; l = 50 mA max. LOW when solenoid overload has occurred (maintained until reset): Output = 0 to +/–2 volts; Output impedance = 50� Reset after failure Disable and re-enable on pin z24 Ambient temperature range 0 - 50�C (32 - 122�F) full specification Edge connectors DIN 41612 F48 on board for card holder F32 or F48 330g (0.15 lb) Installation recommendations leaflet, packed with amplifier ML-9160 Supporting products (see appropriate catalog): Power supply 3,5A EHA-PSU-704-A3-20 5,0A EHA-PSU-704-A5-20 10,0A EHA-PSU-704-A10-20 Test adaptor EBA-TEQ-706-A-10 Portable test equipment EHA-TEQ-700-A-20 EBA-TEQ-706-A-10 Cardholder D32 02-104806 F32 02-104807 F48 02-104808 Edge connector F48 732683 Model 513 523 533 535 541 553 561 571 581 525 568 Max. solenoid current 1,6A 1,6A 2,7A 2,7A 3,2A 3,2A 1,8A 2,9A 3,2A Amplifier input current at 0V command 0,3A 0,3A 0,3A 0,3A 1,7A 1,7A 1,4A 1,1A 1,7A signal (MP1) Deadband compensation Factory setting (% of max. spool stroke) – 25% 15% 10% – – 10% 10% 10% Adjustment per direction (% of max. – 0 - 0 - 0 - – – 0 - 0 - 0 - spool stroke from centered position) 50% 50% 50% 50% 50% 50% Gain Factory setting 10%/V 10%/V 10%/V 10%/V 10%/V 10%/V 10%/V 10%/V 10%/V Adjustment per direction 2,5 - 2,5 - 2,5 - 2,5 - – – 2,5 - 2,5 - 2,5 - 10%/V 10%/V 10%/V 10%/V 10%/V 10%/V 10%/V Zero adjustment (% of max. spool stroke) 0 - – – – +/– +/– – – – 50% 25% 25% 5 Wiring Connections Amplifier Models to Typical Valve Type Amplifier Models: 533, 535 Amplifier Models: 513, 523, 525 z28 z28 z26 z26 b28 b28 b26 b26 z22 z22 +15V +15V z14 z14 z16 z16 b14 b14 b16 b16 Amplifier Model: 553 Amplifier Models: 561, 568 z28 z28 z26 z26 b28 b28 b26 b26 z22 z22 +15V +15V z14 z14 z16 z16 b14 b14 b16 b16 Amplifier Models: 541, 581 Amplifier Model: 571 z28 z28 z26 z26 b28 b26 z22 z22 +15V +15V b14 z14 b16 z16 b14 b16 Note: If valves are fitted with the “B” type LVDT, the screen will be grounded at the valve end by the shell of the connector. Customer’s protective ground connection. 6 Typical Input Connection Circuitry z2 b2 z6 b6 b8 b10 EEA-PAM-513-A-32 z8 523/525 533/535 z10 561/568 571 b4 581 z4 Customer’s protective ground connection. Valve Solenoid Connections LVDT Connections Note: Connection not polarity sensitive. M & E Type Pin 3 Pin 1 z26/28 (b26/28) Pin 2 Pin 4 LVDT plug pin Amplifier pin B Type (EMC) Pilot stage 1 z14 2 z22 z28/26 (b28/26) 3 z16 Pin 1 4 Not connected Main stage 1 b14 Protective ground: Connection not Pin 2 Pin 4 +CVU-EFP1 2 z22 required if power supply conforms 3 b16 to VDE 0551/EN 60742/IEC 742 4 Not connected Pin 3 Electromagnetic Compatibility (EMC) Notes for Wiring 1) Screened cables should be used for the command signals, the solenoid connections and the LVDT connections. 2) Particular attention should be paid to the grounding of the screens as shown in the diagrams. 3) The screen on the LVDT cable needs to be grounded at both ends. An alternative method to prevent creating earth loops is to use double screened cable with each screen grounded at opposite ends. 4) The amplifiers should be mounted in a metal enclosure which is connected to an efficient ground point. 7 Installation Dimensions in mm (inches) Plug-in Unit of 3U Height (IEC 297) DIN 41612 F48 male connector. 7,92 (0.31) z - pin row b - pin row d - pin row M2,5 x 11 (0.43) long collar Components envelope screws supplied with panel for fixing 2,5 (0.1) 122,4 (4.82) 128,4 100 (5.06) (3.94) Model designation 8 (0.31) 3 (0.12) 14,2 (0.56) 7,45 14 3 (0.29) 7,2 (0.55) (0.12) (0.28) 40,3 175,24 (6.9) (1.59) Vickers Systems Division Trinova do Brazil S.A. Vickers Systems Ltd Vickers, Incorporated TRINOVA Ltd CEP 07250-270 2/F Chiaphua Centre 5445 Corporate Drive P.O. Box 4 Av. Julia Gaioli, 450 Yuen Shun Circuit P.O. Box 302 New Lane, Havant Bonsucesso–Guarulhos Siu Lek Yuen, Shatin Troy, Michigan Hampshire PO9 2NB Sao Paulo 07 N.T. Hong Kong 48007-0302 England Brazil USA Printed in U.S.A. � Vickers, Incorporated, 1996 All Rights Reserved