GAE953 Electrical Alarm Unit 19" with Indicator

Transcription

1 Master Instruction MI EIO2211 A-(en) GAE953 Electrical Alarm Unit 19" with Indicator The electrical alarm unit GAE953 gives a signal when one or two set alarm values have been exceeded. Input signals from 0/4 to 20 ma, from 0 to 10 V, from 1 to 5 V, from 0/0.2 to 1 V can be processed as input variables. The device has two inputs with min. (= low) or max. (= high) monitoring, but they can also be switched together for min. and max. monitoring of a single input or of a difference between 2 inputs. The digital display on the front plate permits the control of the inputs as well as the set alarm values. FEATURES Use as double alarm unit for 1 input signal or as double alarm unit for differential signal between 2 inputs or as 2 single alarm units for 2 separate inputs 3 1/2 position LED digital display at front plate to indicate input and alarm values Input or alarm value display from channels 1 and 2 Minimum or maximum value monitoring canbeselected Normally closed or normally open circuit canbeselected Alarm value setting by means of a potentiometer at front plate Alarm indication by means of red LEDs Alarm monitoring by means of relay outputs with double contacts Line break detection Galvanic separation between input, power supply and output EMC in accordance with the latest NAMURrecommendations and international standards and laws

2 2 GAE953 MI EIO2211 A-(en) 1 METHOD OF OPERATION 1.1 Block diagram Power supply UC 24 V Input E1 Output Alarm value G1 U co nst U % Input E2 Output Alarm value G2 Line break monitoring B 1.2 Operation The alarm unit consists of two independent alarm value signal channels having a common power supply. The input signals are converted to the intern voltage signal by the appropriate input circuit (15). The difference of the two converted input signals are produced in the amplifier (16). Assignment of the monitoring channels to both inputs, respectively to the difference of both inputs takes place at the jumper group (17). The input value and the preset alarm value are compared in the comparator (18)with jumper (19) for the selection of the minimum and/or maximum alarm signalizing. The alarm value is set by means of the potentiometer (20), which receives its power supply from the reference voltage source (21). If the input value exceeds the set alarm the comparator changes its output voltage, the appropriate signal lamp (22) is actuated and the output relay switches over. The operating mode for the output relay (normally closed or normally open circuit) can be selected by means of the jumper (23). This transfer affects the output relay (24) with 2 isolated changeover contacts. At the front plate there is a 3 digit 7-segment display integrated containing 2 LEDs (25), on which the input and alarm values can be initiated by means of the selection switch (26) located in front. Thelinebreakdetectioncanbeallocatedtothe inputs by means of the jumper group (27). Line break monitoring takes place upon falling below the internally set sensitivity by the appropriate signal lamp as well as by the output relay (28)withisolated changeover contact. The power supply is provided by means of the built-in universal current power supply unit (29) for UC 24 V. A start up delay circuit prevents the unintentional connection of the comparators during plug-in of the device.

3 MI EIO2211 A-(en) GAE SAFETY REGULATIONS 2.1 General requirements The device fullfills the conditions of IEC , class III. It is made for indoor use. The instrument has to be mounted in a rack or other appropriate housing. Maintenance and repair work must be done by authorized personnel only in the event any power sources are connected. It is important to replace the fuse according to the type and rated voltage as specified (see Page 9, item 10). 2.2 Connection requirements The device is to be used in accordance with the electrical connection diagram (see Page 8, item 7.1). The national requirements are to be observed (for Germany DIN VDE 0100 resp. DIN VDE 0800). The device may be operated only with a power supply having a safety isolation. Protection measures provided in the device may become obsolete if it is not operated in accordance with the master instruction.

4 4 GAE953 MI EIO2211 A-(en) 3 DESIGN a 9b Name plate description 1 Name plate (replaceable) 2 Signal lamp (LED, red), Line break B 3 Potentiometer P for setting alarm value, alarm G2 4 Signal lamp (LED, red), alarm value G2 5 Potentiometer P for setting alarm value, alarm G1 6 Signal lamp (LED, red), alarm value G1 7 Selecting switch for input or alarm value indication E1, E2 or G1, G2 8 LED digital display (3 positions) for input and alarm values 9 LEDs (green) to indicate when measuring range is exceeded a LED to show minus at <0% b LED to expand display to 3 1/2 digits for values 100% e.g. IBM Courier 12 max. 6 characters per line, max. 3 lines e.g. IBM Orator 10 max. 6 characters per line, max. 2 lines 10 Observation hole for slot number on rack 11 Jumper groups for selection of operating mode min. (= low) or max. (= high) monitoring and normally closed or normally open circuit, input signal range, line break monitorung 12 Connector male multipoint DIN type F, 32 poles, series z and d 13 Data label showing arrangement of jumper groups 11 and connection diagram 14 Fitting screw for attachment to rack

5 MI EIO2211 A-(en) GAE DISPLAY 4.1 Display of input and alarm values Input and alarm values are indicated by the 3-position digital display 8. When measuring ranges are exceeded this is indicated by the LEDs 9a, 9b. Input and alarm values between 0 and 99.9% are shown as follows: 4.2 Selection switch for input or alarm value display The input or alarm values E1, E2 or G1, G2 can be connected to the digital display 8 by means of switch 7. Use the pushbuttons for switching. The stamp on the switch tells which channel is chosen: E1 = input E1 1) G1 = alarm value G1 E2 = input E2 2) G2 = alarm value G2 Example: This display shows 89.5% 1) The differential input is shown at switch position E1. 2) If only input E1 is connected, E1 is also shown in switch position E2. Input values 100% are shown as follows: LED 9b (green) lights Example: This display shows 100.5% The 3-position display is extended to 3 1/2 positions in connection with the LED 9b. At a measured value >199.9% the digital display disappears. Only the decimal period can be seen. The negative digit is shown in signal ranges 4to20mA,1to5Vor0.2to 1VbytheLED9a. (-25% at 0 ma resp. 0 V) LED 9a (green) lights Example: Display corresponds to -2.5% For differential input signals the difference 0.5(E2 E1)+50% is shown. Examples: E1 = E2 shows 50% E1 = 100% and E2 = 0% shows 0% E1 = 0% and E2 = 100% shows 100% 5 Setting the alarm values To set the alarm values, the alarm unit must be connected according to the connection diagram (see page 8, item 7.1), power supply voltage and input signal to be as specified on the data label. Setthedesiredalarmvalueinaccordancewiththe digital display 8 by means of the potentiometer 5 for alarm value G1 or the potentiometer 3 for alarm value G2. To accomplish this connect the digital display 8 to the appropriate alarm value channel by means of switch 7 (see item 4.2). To check the alarm values set the input signal to the value which corresponds to the set alarm value. Connect the digital display 8 to the appropriate input by means of switch 7 (see item 4.2). When reading the alarm value the appropriate signal lamp 6 or 4 lights up and the respective output relay is actuated. Notes: It is not possible to set alarm values for negative input signals. The position of the hysteresis is always in the positive range from the switch position.

6 6 GAE953 MI EIO2211 A-(en) 6 SETTING THE ALARM UNIT Setting of the jumpers can only be done when there is no power supply connected. No adjustment is necessary after all settings have been performed. If the setting on the device is changed, the data label 13 must be corrected. The printed MODEL CODE relates to the factory setting. (Model Code table see Product Specifications sheet) Set the alarm unit at the jumper group 11 accessible on the topside of the device. Opening the unit is not necessary. The arrangement of jumper pos. and the respective jumper position are shown on Page 7, item Operation mode alarm value min. (= low) or max. (= high) monitoring The operation mode min. (MIN) or max. (MAX) monitoring is set for alarm value G1 at jumper pos. Ko7 and Ko8, for alarm value G2 at jumper pos. Ko15 und Ko14. The jumper position of Ko7 and Ko8 must be identical. This is true also for Ko15 and Ko Operation mode output relay normally closed or normally open circuit The operation mode normally closed (R / N.C.) or normally open (A / N.O.) is set for alarm value G1 at jumper pos. Ko2, for alarm value G2 at jumper pos. Ko Input signal Input signals with life zero (4-20mA / 0,2-1V / 1-5V) or input signals without life zero (0-20mA / 0-1V / 0-10V) are set at jumper pos. Ko13. At inputs E1 and E2 different input signal ranges can be connected, but the input signals must be identical with life zero resp. without life zero. Voltage input signal (U) or current input signal (0/4-20mA) are set for input E1 at jumper pos. Ko11, for input E2 at jumper pos. Ko3. For current input the jumper at jumper pos. Ko16 resp. Ko4 must be plugged in at board side. For voltage input signal set the signal final value (1V resp. 5V resp. 10V) for input E1 at jumper pos. Ko16, for input E2 at jumper pos. Ko4. For input signal 0-10V the jumper must be disconnected (storing of the jumper not being used see Page 7, item 6.7). Differential input (applicable to signals with life zero only) is selected at jumper pos. Ko12. The jumper at board side has to be plugged in (G1 = E2-E1). 6.4 Assignment of alarm values The assignment of alarm values G1 and G2 to inputs E1 and E2 is set at jumper positions Ko12 (G1 = E2-E1 resp. G1 = E1) and Ko10 (G2 = E2 resp. G2 = G1). For use as double alarm unit for 1 input and for the differential signal of 2 inputs resp., plug in the jumper Ko10 at data label side (G2 = G1). For application as single alarm unit for 1 or 2 inputs, plug in the jumper Ko10 at board side (G2 = E2). For 2 inputs the alarm value G1 is assigned to input E1 and alarm value G2 to input E Line break detection The line break detection B for input E1 is set to on (EIN/ON) or off (AUS/OFF) at jumper pos. Ko1. The line break detection B for input E2 is set to on (EIN/ON) or off (AUS/OFF) at jumper pos. Ko9. The operation mode normally closed (R / N.C.) or normally open (A / N.O.) of output relay for line break monitoring B is set at jumper pos. Ko Input or alarm value not being used An input not being used is to be set to current input signal (0/4-20mA) at jumper pos. Ko3 resp. Ko11 and the associated line break detection B to be switched off at jumper pos. Ko1 resp. Ko9 (AUS/OFF). An alarm value not being used is set to max. monitoring (MAX) at the jumper pos. Ko7 and Ko8 resp. Ko15 and Ko14 as well as to normally open circuit (A/N.O.) at jumper pos. Ko2 resp. Ko6 and to 100% (see Page 5, item 5)

7 MI EIO2211 A-(en) GAE Arrangement of jumper positions Jumper plugged in at data label side Jumper plugged in at board side Data label Board Example: Jumper settings for type GAE953 -M21A1ZZZ Plug inposition of a jumper not being used

8 8 GAE953 MI EIO2211 A-(en) 7 ELECTRICAL CONNECTION 7.1 Connection diagram Input z 2 d 2 z 8 d Input E 1 Input E 2 Output Relay contact position shown without coil current z 12 d 10 z 10 z 16 d 16 z 18 z 14 d 14 d 12 d 18 z 20 d 20 G 1.2 G 1.1 G 2.2 G 2.1 Alarm value G 1 Alarm value G 2 z 22 z 24 d 22 B Line break monitoring B Power supply z 26 d 26 z 28 d 28 M L+ N L DC 24 V AC 24 V Any terminals not required are to be left vacant 7.2 Connection For the connection of the alarm unit a 19"-rack, a single housing or a field housing with a female multipoint connector as per DIN type F, 32 poles, series z and d is required. 7.3 Connection of the relay outputs The relay contact position as shown in the connection diagram monitors in operating mode normally closed... set alarm value exceeded 1) normally open... signal in positive range 1) For line break signal B: Below sensitivity (0.2 ma) In operating mode normally closed the alarm also will be actuated if there is a breakdown in the electronics or in the power supply even if the set alarm value has not been exceeded. (Self-monitoring of the device). In operating mode normally open the alarm will be actuated only if the set alarm value is exceeded

9 MI EIO2211 A-(en) GAE START-UP Place the device in the slot provided for the mounting to the rack and tighten the fitting screw 14. The alarm unit with indicator GAE953 is set according to the order. The digital display is programmed to % of signal range. The type of information to be indicated by the digital display can be set by means of the selection switch for input / alarm value (see Page 5, item 4.2). The desired alarm value is to be set as described in item 5, Page 5. Uppon setting the alarm value, the alarm unit is ready for operation. 9 SHUT- OFF Loosen the fitting screw 14 and remove the alarm unit from the rack. If the alarm unit is connected in series with other devices, the alarm unit can be removed during operation only if the input resistor is connected to an external circuit or if the measurement inputs are bypassed by means of an interlock diode (e.g. on the female multipoint connector in the rack or on a distributing cabinet). If the alarm units are connected in series with other devices and the input resistors (50 ohms/input) are to be switched externally into the input circuit (e.g. to female multipoint connector or distributing cabinet), the jumpers at the jumper pos. Ko3 and Ko11 must be plugged in the voltage input (U) position (see Page 6, item 6.3). 10 MAINTENANCE The alarm unit GAE953 is maintenance-free. Fuse Si1 to be used as per DIN , T 0,2A Associated circuit diagram no. EY1/4597.

10 10 GAE953 MI EIO2211 A-(en) 11 TROUBLE-SHOOTING Error Possible cause Remedy LED digital display does not light up No or insufficient Power supply Check whether power is available at connection points of female multipoint connector. Check plug-socket connection. Fuse defective Replace fuse, see Page 3, item 2.1 Display unit defective Send device to manufacturer LED digital display shows incorrect values LED digital display does not light up, only decimal point lights up Signal lamp (LED, red) does not light up when set alarm value is exceeded. Switching difficulties in signalling circuit. When set alarm value is exceeded, switching of the relay is unreliable or fails entirely. No input signal a) Check signal circuit b) Check connection Signal range incorrectly set Check setting on device, see Page 6, item 6.3 Selection switch for input Check setting, see Page 5, item 4.2 value or alarm value display incorrectly set Signal range is exceeded Extend measuring range, see Page 6, item 6.3 (e.g.from1to5vto0to10v) Min. (= low)/max. (= high) Correct jumper position, see Page 6, item 6.1 selecting switch incorrectly set Device incorrectly set Check setting, see Page 6, item 6 LED defective Signalling system defective; Send device to manufacturer relay faulty 12 DIMENSIONS 171,93 ± 0, ± mm in *) 4 TE GAE953 < , % G2 L P 1 L 2 P B 8.31 M 2.5 1,5 TE *) 2,5 TE *) *) 1TE = 5,08 mm =.2 in

11 MI EIO2211 A-(en) GAE ITEM TABLE OF CONTENT PAGE 1 METHOD OF OPERATION Blockdiagram Operation SAFETYREGULATIONS General requirements Connection requirements DESIGN DISPLAY Display of input and alarm values Selection switch for input or alarm value display SETTING THE ALARM VALUES SETTING THE ALARM UNIT Operation mode alarm value min (= low) or max (= high) monitoring Operation mode output relay normally closed or normally open circuit Inputsignal Assignment of alarm values Linebreakdetection Input or alarm value not used Arrangement of jumper positions ELECTRICALCONNECTION Connection diagram Connection Connection of the relay outputs START-UP SHUT-OFF MAINTENANCE TROUBLE-SHOOTING DIMENSIONS... 10

12 12 GAE953 MI EIO2211 A-(en) Subject to alterations - reprinting, copying and translation prohibited. Products and publications are normally quoted here without reference to existing patents, registered utility models or trademarks. The lack of any such reference does not justify the assumption that a product or symbol is free. FOXBORO ECKARDT GmbH Postfach D Stuttgart Tel. # 49(0) Fax # 49(0)