1 description the requirements regarding modern machinery and equipment are constantly growing. system transparency, remote maintenance and remote access are getting more and more important in international competition. early notification in the event of any disturbances and a fast response to current problems will increase system availability, save costs and improve the overall stability of the production process. e-t-a provides the ideal solution for machine and panel builders with the intelligent protection system comprising the rex12d-t circuit protector and the em12d interface module. the system combines the well-proven quality of dc24v overcurrent protection with the communication options of the io link system. it allows complete transparency of the dc24v power supply and provides all necessary information for a reliable production process in this sector. the 12.5 mm wide modules feature push-in technology for wiring with press release buttons and allow no-tool time-saving and mainte - nance-free wiring. the supply module is designed for dc 24 v and 40 a and accommodates max. 10 mm2 with wire end ferrule as a plus (+) supply. on the load output side the circuit protector can be wired with 2.5 mm2. it is exactly tailored to the needs of machine and panel builders. and what is more: no additional accessories are required when connecting the individual components electrically and mechanically. this helps save time and money! features l control, diagnosis and monitoring via io link l combination of supply module and electronic circuit protector l double channel selective load protection by means of electronic trip curve l no accessories required for connecting the components l width per channel only 6.25 mm (2-channel) l fixed current ratings from 2 a, 4 a, 6 a, 8 a and 10 a l integral fail-safe element, adjusted to current rating l switching capacitive loads up to 20,000 f l manual on/off/reset momentary switch l connection via push-in terminals including press release buttons benefits l increases machine availability through high transparency and remote diagnosis l saves cost C no further accessories equired l saves time through innovative and flexible mounting and connection technology l saves space C with a width of only 6.25 mm per channel (2-channel) l provides flexibility through ease of mounting, disassembly and modular design rex12d-tax-xxx circuit protectors rex12d-ta1-100-dc24v-xa 1-channel rex12d-ta2-100-dc24v-xa/xa 2-channel operating voltage u b dc 24 v (18...30 v) closed-circuit current i 0 rex12d-ta1 1-channel in on condition: typically 7 ma rex12d-ta2 2-channel in on condition: typically 10 ma reverse polarity protection yes power failure buffering time up to 10 ms current ratings i n fixed ratings: rex12d-ta1 8 a, 10 a rex12d-ta2 2 a / 2 a, 4 a / 4 a, 6 a / 6 a current ratings visual status indication green: load circuit connected by led green/orange blinking: load current warning limit reached 50 % C 100 % orange: - overload reached, switch-off delay depending on the load current, active for max. 3 s - circuit protector was switched off by the superordinate control unit, led is permanently orange red: - after disconnection due to overload or short circuit - after undervoltage release of operating voltage in on condition with autoreset off: device was switched off via on/off momentary switch, or due to lacking operating voltage or faulty initialisation of the circuit protector load circuit load output power mosfet switching output (plus switching) load current warning limit typically 0.5 - 1.0 x i n (parameterisable) (i wlimit ) hysteresis typically 5 % overload current typically i ol : i n x 1.05 t ol : 3s disconnection (i ol ) typically i ol : i n x 1.35 t ol : 0.5,5s with trip times (t ol ) typically i ol : i n x 2.00 t ol : 0.1s typically i ol : i n x 2.50 t ol : 0.012 s short circuit typically at short circuit (i sc ) t sc : 0.002 s 1) trip time (t sc ) see time/current characteristic 1) depending on the power source technical data (t amb = +23 c, u b = dc 24 v) approvals and standards approval authority standard rated voltage current rating range ul ul 2367 dc 24 v 2 a10 a ul ul60947 / culus508listed under preparation dc 24 v 2 a10 a www.e-t-a.de electronic circuit protector rex12d 1646 7
2 influence of ambient see temperature factor table temperature on overload disconnection and load current warning limit voltage drop in load circuit at i n and at i n 70 % between line+ and load+ i n : 2 a typically 110 mv i n : 70 % typically 80 mv i n : 4 a typically 115 mv i n : 70 % typically 80 mv i n : 6 a typically 170 mv i n : 70 % typically 110 mv i n : 8a typically 160 mv i n : 70 % typically 105 mv i n : 10a typically 180 mv i n : 70 % typically 120 mv fail-safe element i n : 2 a fail-safe i n : 2 a (integral i n : 4 a fail-safe i n : 4 a blade fuse i n : 6 a fail-safe i n : 6.3 a adjusted to i n ) i n : 8 a fail-safe i n : 8 a i n : 10 a fail-safe i n : 10 a operating voltage off at typically u b < 16.0 v monitoring on at typically u b > 17.5 v with regard to low voltage with automatic on and off switching switch-on delay - with power on channel 1: typically 100 ms channel 2: typically 200 ms - when switching on via channel 1: typically 5 ms on/off momentary channel 2: typically 100 ms switch or - after undervoltage channel 1: typically 5 ms channel 2: typically 5 ms disconnection of the - manually on the device with the load circuit on/off momentary switch - remote control via the superordinate control unit - after an overload / short circuit disconnection with storage (no automatic reset) - temporarily at undervoltage - at no operating voltage switch on of load circuit - momentary switch the circuit protector can be switched on on/off by the superordinate control unit or otherwise directly on the device. these two options are linked with and. switch- on is only possible if switched on from both positions. if the circuit protector was switched off either by the control unit or by the momentary switch directly on the device, switch-on has to be effected also from the corresponding position. - apply for switch-on the device has to be operating voltage supplied with operating voltage. the device re-starts with the last stored condition. reset function a blocked load output (blocked by overload / short circuit) can be reset by the on/off momentary switch or by the superordinate control unit. leakage current in load typically < 1 ma circuit in off condition capacitive loads up to 20,000 f free-wheeling diode external free-wheeling circuit at inductive load (rating according to load) parallel connection of not allowed several load outputs screw terminals load+ push-in terminal pt 2.5 0.14 mm 2 ...2.5 mm 2 , flexible stripping length 8 mm...10 mm dimensions (w x h d) 12.5 x 98.5 x 80 mm mass rex12d-ta1-xxx 1-channel approx. 58 g rex12d-ta2-xxx 2-channel approx. 62 g technical data (t amb = +23 c, u b = dc 24 v) temperature factor / continuous duty the time/current characteristic depends on the ambient temperature. in order to avoid premature trip, the rating of the circuit protector has to be multiplied with a temperature factor and has to be accounted for when mounted side-by-side (see chapter technical information) temperature factor table: ambient temperature [c] 0 10 23 40 50 60 temperature factor 1 1 1 0,95 0,90 0,85 note: when mounted side-by-side, the devices can carry max. 80 % of their rated load or a different rating has to be selected (see chapter technical information). note: with high temperatures, the load current warning threshold warn limit typically 0.8 x i n will be reduced in accordance with the temperature factor. general data housing material moulded mounting symmetrical rail to en 60715-35x7.5 ambient temperature -25 c...+60 c (without condensation, cf. en 60204-1) storage temperature -40 c - +70 c mounting temperature +5 c...+60 c humidity 96 hrs / 95 % rh 40 c to iec 60068-2- 78-cab climate class 3k3 to en 60721 vibration 3g test to iec 60068-2-6, test fc degree of protection iec 60529, din vde 0470 ip30 emc requirements noise emission: en 61000-6-3 (emc directive, ce logo) susceptibility: en 61000-6-2 insulation co-ordination (iec 60934) 0.5 kv / pollution degree 2 dielectric strength max. dc 30 v (load circuit) insulation resistance n/a, only electronic disconnection (off condition) electronic modules for side-by-side mounting rex12d-ta1-xxx 1-channel rex12d-ta2-xxx 2-channel max. 16 channels approvals ce logo, ul 2367, file # e306740, (ul60947 / ul 508, file # e...) under preparati on technical data (t amb = +23 c, u b = dc 24 v) overview of ordering number codes supply module em12d-tio-000-dc24v-40a circuit protector: 1-channel rex12d-ta1-100-dc24v-8a REX12D-TA1-100-DC24V-10A protection modules: 2-channel rex12d-ta2-100-dc24v-2a/2a rex12d-ta2-100-dc24v-4a/4a rex12d-ta2-100-dc24v-6a/6a instructions for installation mounting and actuation of the rex connector arm must only be effected at dead-voltage. for start-up the rex connector arm must be closed. electronic circuit protector rex12d electronic circuit protector rex12d www.e-t-a.de 1646 7
3 typ. time/current characteristic (t amb = +23c, u b = dc 24 v) dimensions with connection diagram: rex12d-tax-xxx circuit protectors mounting position: rex preferred mounting position horizontal germany snap-on socket for rail en 60715-35x7,5 label e.g. from phoenix contact zbf-12 80 7.5 98.5 12.5 92 rex12d- ta2-1xx dc24v com xa xa 2.1 | 2.2 momentary switch for on/off and reset with integral status indication 1-channel 2-channel operating area installation area load + rex12d- ta1-1xx dc24v com xa 2.1 load + contact arm germany type rex12d intelligent electronic circuit protector with pt connection technology mounting method t rail mounting design a 1 load output terminal per channel, fixed current ratings xa or xa/xa number of channels 1 1 channel 2 2 channels version 1 without physical isolation signal input 0 without signal input signal output: 0 status output operating voltage dc 24 v voltage rating dc 24 v current ratings 8 a (only 1-channel) 10 a (only 1-channel) 2 a / 2 a (only 2-channel) 4 a / 4 a (only 2-channel) 6 a / 6 a (only 2-channel) rex12d-t a 1 - 1 0 0 - dc24v - 10 a example 1-channel rex12d-t a 2 - 1 0 0 - dc24v - 6 a / 6 a example 2-channel ordering number code notes l the intelligent em12d-tio supply module is only meant for use with extra-low voltage (dc 24 v). l connection to a higher or not reliably disconnected voltage can cause hazardous conditions or damages. l only the intended circuit protectors must be used. l the technical data of the circuit protectors used have to be observed. l the entire power distribution system must only be installed by qualified personnel. l only after expert installation must the device be supplied with power. l after tripping of the circuit protector and before reset, the cause of the failure (short circuit or overload) must be remedied. l the national standards (e.g. for germany din vde 0100) have to be observed for installation and selection of feed and return cables. l for convenient adjustment and configuration by means of projecting software a master data file (gsdml file) will be made available for downloading on the e-t-a homepage. please observe separate user manual of the em12d-tio. 1000 100 trip time in seconds ...times rated current 10 1 0,1 0,01 0,001 0,8 1 1,2 1,4 1,6 1,8 2 2,2 2,4 2,6 2,8 3 i sc caution electrostatically sensitive sub-assemblies can be destroyed by voltages far below the human perception threshold. these voltages already occur if you touch a component or electrical terminals of a sub-assembly without being electrostatically discharged. the damage of a sub-assembly caused by an overvoltage is often not immediately recognised, but will be noticed only after a longer operating time. www.e-t-a.de electronic circuit protector rex12d 1646 7 electronic circuit protector rex12d
4 description C em12d-t supply module communication interface operating voltage u b dc 24 v (18...30 v) operating current i b max. 40 a reverse polarity protection yes quiescent current i 0 typ. 20 ma insulation co-ordination 0.5 kv / pollution degree 2 power failure buffering time up to 10 ms screw terminals line+ push-in terminal pt 10 0.5 mm 2 ...10 mm 2 , flexible stripping length 18 mm...10 mm screw terminals 0 v push-in terminal pt 2.5 0.14 mm 2 ...2.5 mm 2 , flexible stripping length 8 mm...10 mm dimensions (w x h d) 12.5 x 98 x 80 mm mass approx. 56 g electronic modules for side-by-side mounting rex12d-ta1 1-channel rex12d-ta2 2-channel max. 16 channels visual indication green: faultless operation of operating condition communication to io link via multicoloured master available led: green blinking: independent operation no communication to io link master red: critical fault detected no communication to io link master orange: non-critical fault detected communication to io link master available orange blinking: non-critical fault detected no communication to io link master red blinking: bootloader mode active no communication to io link master io link connection x81 com interface to io link master connector 1: io link l+ dc +24v connector 2: io link c/q connector 3: io link l- when wiring and connecting to the point-to-point communication io link, the installation and wiring regulations of the profibus-dp user organisation (pno) have to be observed. push-in terminals pt xx connector, 3-pole (plugged on) 0.25 C 0.5 mm2 stripping length 6 mm the em12d-t supply module receives the dc 24 v supply voltage, e.g. from a switched mode power supply, and distributes it to the installed intelligent circuit protectors via the integral connector arm of the rex12d-t. the communication interface of the em12d-t, which is designed as an io link device, allows a great number of diagnosis and control commands to a superordinate io link master of the control level. overview of commands: writing/reading of configuration (parameters) l current limit value (50 %...100 %) reading of static product information l current ratings l product type l serial number l hardware version l software version reading of dynamic product information / measuring values l error memory l trip counter l reason of last trip l status / event of device l load voltage l load current control commands l switch on/off or reset load output l reset error memory l reset trip counter l set parameters to factory setting technical data (t amb = +23 c, u b = dc 24 v) type em12d supply module for rex12d, with pt connection technology mounting method t rail mounting version: communication, interface io io link additional functionality 0 without signal input 0 without signal input signal output: without signal output operating voltage dc 24 v voltage rating dc 24 v current ratings 40 a em12d - t 01 - 0 0 0 - dc 24 v - 40 a ordering example ordering number code C em12d overview of ordering number codes supply module em12-tio-000-dc24v-40a electronic circuit protector rex12d electronic circuit protector rex12d www.e-t-a.de 1646 7
5 dimensions em12d-tio-xxx supply module em12d - tio-000 l+ c/q l- x81 ov dc24v 40 a line +1 led ce/cm connector 3-pole snap-on socket for rail en 60715-35x7.5 label e.g. from phoenix contact zbf-12 germany 91,5 80 7,5 98 schematic diagram em12d-tio-xxx with rex12d-xxx load+ 2.1 (2.2) com addr line+1 em12d-t max. 16 channels rex12d-t 0 v io-link application example: em12d-tio-xxx with rex12d-xxx application example: rex... locked connector arms connector arms can be locked with enclosure application example: rex12(d)-t... distance between cable duct and connector arm germany 80 15 60 www.e-t-a.de electronic circuit protector rex12d 1646 7 electronic circuit protector rex12d
6 all dimensions without tolerances are for reference only. e-t-a reserves the right change specifications at any time in the interest of improved design, performance and cost effective - ness, the right to make changes in these specifications without notice is reserved. product markings may not be exactly as the ordering codes. errors and omissions excepted. application example: rex... replacement or disassembly caution: assembly/disassembly only in dead-voltage condition! application example: rex... mounting on or removing from symmetrical rail connector arm can be closed push rex towards rail latch on enclosure downwards unlatch with srewdriver, tilt upwards and remove (connector arm can be closed) mount rex... side-by-side with em... remove rex... from rail mounting or actuation of the rex connector arm must only be effected at dead-voltage. for start-up the rex connector arm must be closed. instructions for installation electronic circuit protector rex12d www.e-t-a.de 1646 7
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