M Buffer Amplifier G123-815 Description The Moog Buffer Amplifier interfaces between standard PLC analogue input and output modules, on one side, and a position transducer and a Moog valve, on the other. It simplifies the use of a PLC in closing position loops. The filter and valve current selector switches can have more than one of each selected, so the selected values are summed. For example, selecting 50 and 30 mA together will give a full scale output of 80 mA. The Buffer Amplifier solves the common problem of the ±10V PLC output being incompatible with the valve drive requirements. The position transducer signal is filtered by the Buffer Amplifier, before being passed through to the PLC analogue input module. This ensures transducer and external noise cannot upset the closed loop. Digital noise from the PLC ± 10V output is filtered with a switch selectable first order filter and converted to two switch selectable outputs. The first is ± 10V and the second is a switch selectable current output of ± 5mA to ±100 mA. This allows for most Moog electrical feedback (efb) and mechanical feedback (mfb) valves. The Buffer Amplifier is housed in a compact DIN rail mounting enclosure and requires a 24 V supply. Front panel test points and valve drive LEDs facilitate commissioning and trouble shooting. Features Compact, DIN rail mounting Outputs to suit most Moog valves Transducer (probe), valve and 0V test points Vv and Iv LED valve drive indicators Switch selections sum for filter and valve current Transducer (probe) signal filter +24V supply Switch selectable voltage or current output Switch selectable valve drive filter Switch selectable current output CE marked Specifications Valve drive input: 0 to ± 10V Valve drive outputs: 0 to ± 10V 0 to ± 100mA max Valve drive current selections: ±5, 10, 20, 30 & 50 mA Valve filter corner frequency selections: 7, 16, 34, 72 & 723 Hz ±10% ±10V min Probe filter corner frequency: 154Hz ±10% Current signal output headroom: Class of protection: IP 20 Valve drive test point: Zo = 10K Supply: Probe test point: Zo =10K 24 V nominal, 22 to 28 V 50 mA @ 24 V, no load Vv LED: Maximum illumination at ± 10V + = red – = green Mounting: DIN rail Temperature: 0 to 40°C Dimensions: 100W x 108H x 22.5D Maximum illumination at ±5 mA \ ±100mA + = red – = green Weight: 120g CE mark: EN50081.1 emission EN50082.2 immunity C tick: AS4251.1 emission Iv LED: Filter type: Passive, single pole Operating Details 24V DC SUPPLY +24V 1 OV 2 +15V TP 0V -15V Voltage Amplifier Power Supply Valve Command Filter LED 0.22mS (723Hz) Vv TP valve 2.2mS (72Hz) 4.7mS (34Hz) 10mS (16Hz) +24V Filter select switches Current Amplifier 5mA V 10 9 Output select VALVE 14 10mA 22mS (7Hz) 20mA 100K VALVE COMMAND PLC 0V REF PROBE 100K 3 8 30mA Output current select switches 50mA 1K Lo Rin switch 4 TP probe LED +24V 16 Iv Probe Filter 11 PROBE 1mS (160Hz) 12 Ordering Information Buffer Amplifier G123-815A001 Special configurations can be provided. Consult your Moog sales office to discuss details. Internet Data For detailed Application Notes and the latest version of this Data Sheet please refer to the Moog website www.moog.com/dinmodules Industrial Controls Division. Moog Inc., East Aurora, NY 14052-0018. Telephone: 716/652-3000. Fax: 716/655-1803. Toll Free 1-800-272-MOOG. Moog GmbH. Germany. Telephone: 07031-622-0. Fax: 07031-622-100. Moog Sarl. France. Telephone: 01 45 60 70 00. Fax: 01 45 60 70 01. Moog Australia Pty. Ltd. Telephone: 03 9561 6044. Fax: 03 9562 0246. Moog pursues a policy of continuous development and reserves the right to alter designs and specifications without prior notice. Information contained herein is for guidance only and does not form part of a contract. ~ Paulo Denmark: Birkerød England: Tewkesbury Finland: Espoo France: Rungis Germany: Böblingen, Dusseldorf Hong Kong: Shatin India: Bangalore Australia: Melbourne, Sydney, Brisbane Austria: Vienna Brazil: Sao Ireland: Ringaskiddy Italy: Malnate (VA) Japan: Hiratsuka Korea: Kwangju-Kun Philippines: Baguio City Singapore: Singapore Sweden: Askim USA: East Aurora (NY) G123-815US 11.03 M