GT / 0 / 0 / 0 / / 90 / 0A SOLID STATE RELAYS WITH ANOG CTROL Man applcatons Plastcs extruson lnes and njecton mouldng machnes Polymerzaton plant for synthetc fbre producton Rubber mouldng machnery Drers for ceramcs and components for the buldng ndustres Chemcal and pharmaceutcal ndustres Industral electrc furnaces Food processng plants Man features Command nput from analogue voltage or current sgnal or potentometer. Swtchng at voltage zero crossng. Partalzaton of wave tran power wth dynamcally optmzed tme cycle. Antparallel double SCR led for supply ndcaton, state, optonal LED for load nterrupt alarm 000V solaton between nput crcut and power output MOV (varstor) Optonal montorng of nterrupted load PROFILE The GT famly of sold-state relays has been desgned wth the am of provdng very accurate control of the load thanks to an analog control nput, n voltage at 0 V; 0 0V or n current at 0 0/ 0mA or a potentometer (from KΩ to 0 KΩ). The electronc desgn ensures that the cycle tme for proportonng the power s automatcally optmzed. Il numero d perod che l GT fornsce al carco ( tren d onda ) per un certo valore d segnale d ngresso, è calcolato n modo da essere l mnmo possble, pur mantenendo la precsone necessara. The number of cycles that the GT supples to the load (wave trans) for a gven nput sgnal s calculated to be the mnmum possble to mantan the necessary accuracy. The GT can be used n three phase systems, usng master-slave control archtecture n whch the control sgnal drves only one GT (master) and ths unt supples the synchronzed sgnals to the other slaves. Two GS modules can also be used as slaves (logc control). A load nterrupt control opton (HB) s avalable wthout havng to use an external current transformer; alarm lmt s settable wth trmmer and yellow LED sgnal, wth voltage-free contact, normally open. The GT sold-state relay has a green LED to ndcate the presence of the Vac power supply and a red LED to ndcate the swtchng based on the analog control nput sgnal. The LED sgnal wll be contnuous (off at mnmum, on at maxmum) at the ends of the scale, pulsng for ntermedate values. The unts offer optonal accessores for panel mountng, fuses and fuseholders, current transformer, solaton transformers. Use the relè wth an opportune heatsnk (see secton accessores). TECHNIC DATA General features Category of use AC Nomnal voltage - 0Vac (max. range...0vac) Nomnal frequency: 0/0Hz Non-repettve voltage: 00Vp Zero swtchng voltage: 0V Voltage drop at nomnal current.vrms Power factor = Control nputs Voltage: 0...Vdc, 0...0Vdc (mpedance 00KΩ) Current: 0...0mA,...0mA (mpedance Ω) Potentometer: dak a 0KΩ (auto-fed by GT) OUTPUTS GT (SCR verson) Nomnal currents of the devce wth opportune heatsnk n contnuous work: A Non-repettve overcurrent t=0 ms: 00A I t for blowout: A s dv/dt crtcal wth output deactvated: 000V/µs GT 0 (SCR verson) Nomnal currents of the devce wth opportune heatsnk n contnuous work: 0A Jangmen LEADER Electronc Co., Ltd. # nd Str, CuShanLngShu, WuY Country Garden, Jangmen Cty, Guangdong, Chna Tel:+ 0 90 99 Fax:+ 0 999 http://www.leadersensors.com E-mal:leader@leadersensors.com
Non-repettve overcurrent t=0 ms: 00A I t for blowout: 00A s dv/dt crtcal wth output deactvated: 000V/µs GT 0 (SCR verson) Nomnal currents of the devce wth opportune heatsnk n contnuous work: 0A Non-repettve overcurrent t=0 ms: 0A I t for blowout: 00A s dv/dt crtcal wth output deactvated: 000V/µs GT 0 (SCR verson) Nomnal currents of the devce wth opportune heatsnk n contnuous work: 0A Non-repettve overcurrent t=0 ms: 0A I t for blowout: 00A s dv/dt crtcal wth output deactvated: 000V/µs GT (SCR verson) Nomnal currents of the devce wth opportune heatsnk n contnuous work: A Non-repettve overcurrent t=0 ms: 00A I t for blowout: 000A s dv/dt crtcal wth output deactvated: 000V/µs GT 90 (SCR verson) Nomnal currents of the devce wth opportune heatsnk n contnuous work: 90A Non-repettve overcurrent t=0 ms: 00A I t for blowout: 00A s dv/dt crtcal wth output deactvated: 000V/µs GT 0 (SCR verson) Nomnal currents of the devce wth opportune heatsnk n contnuous work: 0A (complete wth fan and standard thermostat). Non-repettve overcurrent t=0 ms: 00A I t for blowout: 00A s dv/dt crtcal wth output deactvated: 000V/µs Isolaton Rated solaton voltage nput/output: 000Vac Power supply: Vac ±0%, 0/0 Hz Absorpton:.VA Max. solaton voltage: 00Vdc Optons: Interrupted HB load alarm. Controls the load by measurng current on a shunt nsde the devce. The alarm lmt s set wth a multrev monorev trmmer. The alarm output s obtaned by means of a sold state relay. The contact s normally open (max. 0V, 0mA, conducton resstance Ω). Thermal features GT Juncton temperature: C Rth juncton/case:. K/W Rth juncton/ambent: K/W GT 0 Juncton temperature: C Rth juncton/case: 0. K/W Rth juncton/ambent: K/W GT 0 Juncton temperature: C Rth juncton/case: 0. K/W Rth juncton/ambent: K/W GT 0 Juncton temperature: C Rth juncton/case: 0. K/W Rth juncton/ambent: K/W GT Juncton temperature: C Rth juncton/case: 0. K/W Rth juncton/ambent: K/W GT 90 Juncton temperature: C Rth juncton/case: 0. K/W Rth juncton/ambent: K/W GT 0 Juncton temperature: C Rth juncton/case: 0. K/W Rth juncton/ambent: K/W Sold State Relay Dsspated Power Calculaton Sngol-phase statc relay Pds =. IRMS [W] IRMS = sngol phase load current Heatsnk thermal resstance Calculaton Rth = (90 C - T.amb. max) / Pd where Pd = dsspated power T.amb.max = max ar temperature nsde the electrcal cabnet. Use a heatsnk wth thermal resstance nferor to the calculated one (Rth). Ambent condtons Workng temperature: 0 to 0 C. Max. relatve humdty: 0% at 0 C Max. nstallaton alttude: 000m asl Polluton level: Storage temperature: -0.. C Installaton notes - The heat snk must be grounded. - The devce must be protected by an approprate hgh-speed fuse (accessory). - Applcatons wth sold state power unts must also nclude an automatc safety swtch to cut out the load power lne. - Protect the sold state relay by usng an approprate heat snk (accessory). The heat snk must be szed accordng to room temperature and load current (see the techncal documentaton). - Procedure for mountng on heat snk: The module-heat snk contact surface must have a maxmum planarty error of 0.0mm. and maxmum roughness of 0.0mm. The fastenng holes on the heat snk must be threaded and countersunk. Attenton: spread gram of thermoconductve slcone (we recommend DOW CORNING 0 HeatSnk) on the dsspatve metal surface of the module. The surfaces must be clean and there must be no mpurtes n the thermoconductve paste. Alternately tghten the two fastenng screws untl reachng a torque of 0.0 Nm for the M screws and 0. Nm for the M screws. Wat 0 mnutes for any excess paste to dran. Alternately tghten the two fastenng screws untl reachng a torque of. Nm for the M screws and. Nm for the M screws. We advse you to randomly check for proper nstallaton by dsmantlng the module to make sure there are no ar bubbles under the copper plate. Lmts of use dsspaton of thermal power of devce wth restrctons on temperature of nstallaton ste. requres exchange wth outsde ar or an ar condtoner to transfer dsspated power outsde the panel. nstallaton restrctons (dstances between devces to guarantee dsspaton by natural convecton). max. voltage lmts and dervatve of transents n lne, for whch the sold state unt has nternal protecton devces (dependng on model). presence of dsperson current < ma for SCR verson GS < ma for TRIAC verson GS (max. value wth rated voltage and juncton temperature of C).
WORKING TYPOOLOGY Zero crossng wth varable cycle tme Examples of the operaton of the GT for dfferent values of the nput drve sgnal and the consequent dfferent cycle tmes (00msec and 0msec respectvely). V Example of nput at 0% = V (IN 0-0V) or ma (IN 0-0mA) V=Voltage across load Logc output control for GT V Example of nput at 0% = V (IN 0-0V) or 0mA (IN 0-0mA) V=Voltage across load GT thermal protecton Control nput OFF t Red LED Red LED Thermal alarm V = voltage t t Thermal protecton actvaton
FACEPLATE DESCRIPTI Synchronsm sgnal for / connecton output (sold state relay, HB opton) - control sgnal + control sgnal Reference voltage for potentometer power supply (+ 0V) Vac 0/0 Hz power termnal Green LED (power on), Red LED (GT runnng) Red LED (thermal alarm), yellow LED (load nterrupt alarm, HB opton) a b Monorev trmmer for mnmum calbraton of nput sgnal Monorev trmmer for calbraton of load nterrupt (HB) alarm lmt c g d e f Dp swtch for selecton of nput sgnal (S, S, S) Monorev trmmer for maxmum calbraton of load sgnal LINE connecton LOAD connecton Reference connecton of 0V lne voltage (HB opton wth 0V to 00V load) Reference connecton of 0V lne voltage (HB opton wth 00V to 0V load) CIBRATI PROCEDURE OF THE INPUT SIGN The sold-state power unt, Gt, s suppled factory calbrated for,,,, 0Kohm potentometer. Mnmum and maxmum values are adjusted wth two monorev trmmers (d,e). sgnal type s selected wth the adjustment f dp swtches (S,S,S). Control sgnal Dp Swtch Poston S S S 0...Vdc OFF OFF 0...0Vdc OFF 0...0mA OFF...0mA OFF OFF e d 9% % % % V/mA In T V/mA In On 0-V Off 0-0V 0-0mA f S-S Rn 00KΩ 00KΩ Ω Ω Mnmum adjustment trmmer (d) turned fully counterclockwse sets the start conductng lmt at % of the sgnal; turned fully clockwse, the mnmum conductng lmt s set at % of the nput sgnal. Maxmum adjustment trmmer (e) turned fully clockwse sets the full conductng lmt at 9% of the sgnal; turned fully counterclockwse, the full conductng lmt s set at % of the nput sgnal.
CIBRATI PROCEDURE OF THE INTERRUPTED LOAD ARM The nterrupted load alarm functon enables the GT to dagnose a varaton of the load current (compared to a set lmt), dstngushng t from one caused by a change n grd voltage. The sold state power unt must therefore be suppled wth the voltage appled to the load termnals,.e.: LOAD (): already connected nternally; LINE (h or ): connect termnal h for voltages from 0 to 00V; connect termnal for voltages from 00 to 0V. The alarm actvates (relay closed and yellow alarm LED on) when the current, durng the conducton of the devce, falls below a preset level that may be adjusted usng the trmmer on the faceplate. Calbraton procedure (refer to the faceplate descrpton drawng) ) Use the adjustment system (or a calbrator) n order to supply the maxmum sgnal (00% conducton or thered LED always llumnated). As an alternatve, you can confgure the GT to 0-0 V DC nput confguraton and connect termnals and. ) Use a current sensng plers to check that the load current s at rated level. ) Turn alarm lmt adjustment trmmer (g) fully clockwse. Check that yellow alarm LED (b) turns on. ) Slowly turn trmmer (g) counterclockwse untl the alarm LED turns off. ) Turn the trmmer counterclockwse another /0 of a turn ( notch on the scale). In ths way, the alarm lmt s set below 0% of the rated load current. N.B: the partal load break alarm functon operates wth power partalzaton exceedng %. For partalzatons below 0%, trppng tmes ncrease due to the reduced load actvaton tme. For correct operaton of the opton, the load current has to exceed 0% of rated current for the GT. Notes on use of the GT wth the dgtal On/Off control - The logc control sgnal has to be connected wth the correct polartes to termnals and of the analog nput. - Turn mnmum adjustment trmmer (d) fully counterclockwse and maxmum adjustment trmmer (e) fully clockwse. - Set the dp swtches (f) to off. For applcatons wth a very short work cycle, you can drve the sold state group by means of the / sgnal by drvng t wth a dgtal sgnal (OFF = 0 V dc; = from V dc to 0 V dc) Inhbtng the GT You can nhbt operaton of the GT by means of the / sgnal. To nhbt, connect control sgnal - () wth the synchronsm sgnal for / connecton (). Notes on use of the GT n / confguraton The GT can be used as a master to drve other sold state groups (slaves). Wth / sgnal (), you can drve up to 9 GTs (see connecton examples for GT sold state power relays wth three-phase load). You can also use a GT to drve GS sold state power relays (maxmum of ), as shown n the connecton dagrams for GT/GS sold state power relays wth three-phase load (attenton: the HB opton cannot be used for a three-phase applcaton wth neutral).
DIMENSIS AND CUT-OUT TEMPLATE DIMENSIS GT - 0-0 - 0-0 - mm 90-0A 0 mm Accessory LAB- 00mm h L GT A/ac g Adj. mm mm 00 mm Vac Supply +0 Vdc Depth mm. Weght 00gr. CNECTI EXAMPLES Sngle-phase connecton (command nput from analog sgnal or potentometer) Neutral Phase Connectons regardng the load nterrupted opton (see paragraph Interrupted load alarm) Note: connect h or accordng to the load tenson. h L g Adj GT A/ac Dgtal output 0-0mA 0-0Vdc 0-Vdc Vac,VA Vac Supply +0 Vdc Potentometer Relay output - (sold state relay)
CNECTI EXAMPLES Star or delta three-phase connecton wthout neutral, wth control of two phases. Phase R Phase S Phase T Connectons regardng the load nterrupted opton (see paragraph Interrupted load alarm) Note: connect h or accordng to the load tenson. Star connecton Three-phase connecton h L h L g Adj g Adj GT A/ac GT A/ac Vac,VA Vac +0 Vdc Supply Vac +0 Vdc Supply Dgtal output 0-0mA 0-0Vdc 0-Vdc Potentometer Relay output - (Sold state relay) Star or delta three-phase connecton wthout neutral, wth control of three phases. Phase R Phase S Phase T Connectons regardng the load nterrupted opton (see paragraph Interrupted load alarm) Note: connect h or accordng to the load tenson. h L h L h L g Adj g Adj g Adj GT A/ac GT A/ac GT A/ac Vac,VA Vac +0 Vdc Supply Vac +0 Vdc Supply Vac +0 Vdc Supply Dgtal output 0-0mA 0-0Vdc 0-Vdc Potentometer Relay output - (Sold state relay)
CNECTI EXAMPLES Three-phase star connecton wth neutral. Phase R Phase S Phase T Neutral Connectons regardng the load nterrupted opton (see paragraph Interrupted load alarm) Note: connect h or accordng to the load tenson. h L g Adj h L g Adj h L g Adj GT A/ac GT A/ac GT A/ac Carco Vac,VA Vac Supply +0 Vdc Vac Supply +0 Vdc Vac Supply +0 Vdc Dgtal output 0-0mA 0-0Vdc 0-Vdc Potentometer Relay output - (sold state relay) Three-phase connecton (trangle or star) wthout neutral, wth control of two phases usng one GT n confguraton and one GS n confguraton. Phase R Phase S Phase T Connectons regardng the load nterrupted opton (see paragraph Interrupted load alarm) Note: connect h or accordng to the load tenson. Star connecton Three-phase connecton h L g Adj GT 0A/ac GS 0A/ac Vac,VA Dgtal output 0-0mA 0-0Vdc 0-Vdc Potentometer Vac +0 Vdc Supply Vcc /OFF Control Relay output - (sold state relay)
CNECTI EXAMPLES Three-phase star connecton wth neutral usng one GT n confguraton and two GSs n confguraton. Phase R Phase S Phase T Neutral h L g Adj GT 0A/ac GS 0A/ac GS 0A/ac Vac,VA Dgtal output 0-0mA 0-0Vdc 0-Vdc Potentometer Vac +0 Vdc Supply Vcc /OFF Control Vcc /OFF Control TABLE OF TERMINS AND CDUCTORS CTROL TERMIN POWER TERMIN GROUND TERMIN Contact Type of pre- Max secton. Sze area solated termnal conductor (WxD) tghtenng screw type torque /0A,x9 Eye/fork /.mm 0/0A M tp 0.Nm Max -90A,x9 Eye/fork /.mm M tp 0.Nm Max 0A,x9 Eye/fork /.mm M tp 0.Nm Max Contact Type of pre- Max secton. area solated termnal conductor (WxD) tghtenng screw type torque x Eye/fork 0mm M.- Nm x Eye/fork 0mm M.- Nm x Eye/fork 0mm M.- Nm Contact Max secton. area conductor (WxD) tghtenng screw type torque x 0mm M.-.Nm x 0mm M.-. Nm x 0mm M.-. Nm () The max. sectons specfed refer to unpolar copper wres solated n PVC. Note: For the ground termnal, you have to use an eye wre termnal. (WxD) = Wdth x depth ACCESSORIES A wde range of accessores s avalable (ncludng fuses and fuse holders, supports for fastenng DIN bar, ID plates, thermostats, current transformers and solaton transformers). To choose accessores, see the secton "Sold state relays - Accessores." 9
ORDER CODE GT / 0 - Model GT Nomnal current Aac 0Aac 0Aac 0Aac Aac 90Aac 0Aac 0 0 0 90 0 Nomnal voltage 0Vac 0 nterrupt (HB) opton Wthout opton Wth load nterrupt opton 0 0