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technical d at asheet sync din rail power supply 24v 30w 1 phase (nec class 2) / drs - 24v30w1az all parameters are specified at 25 c ambient unless otherwise indicated. www. deltapsu .com ( march 201 5 , rev. 0 0 ) 1 highligh ts & features C ultra compact size C universal ac input voltage and full power up to 55 c C high efficiency 8 8 .0% typ. @ 230vac C nec class 2 / limited power source (lps) certified C overvoltage / overcurrent / over temperature protections C meet surge immunity iec 61000 - 4 - 5, level 4 (cm: 4kv, dm: 2kv) safety standards cb certified for worldwide use model number: dr s - 24v3 0 w1az unit weight : 0 .1 0 kg dimensions (l x w x d): 75 x 21 x 89.5 mm general description the ultra compact and competitively priced delta sync din rail power supply series is designed for industrial applications requir ing highly reliable power supply within a tight space. the sync series operates with universal ac input range and offers full power up to 55 c. all models in the series are certified according to iec/en/ul 60950 - 1 information technology equipment (ite) and ul 508 industrial control equipment (ice). the series is also fully compliant with rohs directive 2011/65/eu for environmental protection. nec class 2 and limited power source (lps) approvals are available for this product. model information sync din rail power supply model number input v oltage range output v oltage output cur r ent drs - 24v3 0 w1az 85- 264v ac 24 vdc 1.25a model numbering dr s C 24v 3 0 w 1 a z din rail product series s C sync series output voltage output power single phase no pfc delta standard
technical d at asheet sync din rail power supply 24v 30w 1 phase (nec class 2) / drs - 24v30w1az all parameters are specified at 25 c ambient unless otherwise indicated. www. deltapsu .com ( march 201 5 , rev. 0 0 ) 2 specifications input ratings / characteristics nominal input v oltage 100- 240v ac input v oltage range 85- 264v ac nominal input f r equency 50- 60hz input f r equency range 47- 63hz input cur r ent < 0.80 a @ 1 15 vac, < 0. 4 0 a @ 2 30 vac e f ficiency at 100% load 8 8 .0 % typ. @ 2 3 0 vac max inrush cur r ent (cold start) < 6 0 a @ 230vac leakage cur r ent < 0.5 ma @ 240vac output ratings / characteristics nominal output voltage 24 vdc output voltage tolerance 1 % (initial set point tolerance from factory ) output voltage adjustment range 21.6 - 26.4vdc output current 1.25 a output power 30 w line regulation < 1 % typ. (@ 85 - 2 64 vac , 100% load ) load regulation < 1 % typ. (@ 85 - 2 64 vac, 100% load ) pard (20mhz) 1 5 0mvpp rise time < 5 0ms @ nominal input (100% load) start - up time < 3 , 000ms @ 115vac < 1,600ms @ 230vac (100% load) hold - up time > 2 0 ms @ 230vac (100% load ) dynamic response (overshoot & undershoot o/p voltage) 5% @ 10 - 100% load start - up with capacitive loads 3 ,000f max mechanical case cover plastic dimensions (l x w x d) 75 x 21 x 89.5 mm unit weight 0. 10 kg indicator green led (dc ok) cooling system convection terminal input 3 pins (rated 300v/ 16a ) output 2 pins (rated 300v/ 16a ) wire input / output awg 2 6 - 12 mounting rail standard ts35 din rail in accordance with en 60715 noise (1 meter from power supply) sound pressure level (spl) < 25dba
technical d at asheet sync din rail power supply 24v 30w 1 phase (nec class 2) / drs - 24v30w1az all parameters are specified at 25 c ambient unless otherwise indicated. www. deltapsu .com ( march 201 5 , rev. 0 0 ) 3 environment surrounding air temperature operating - 2 0 c to + 7 0 c storage - 40 c to + 85c power de - rating - 1 0c to - 2 0c de - rate power by 5% / c > 5 5 c de - rate power by 3.33 % / c operating humidity 5 to 95 % rh (non - condensing) operating altitude 0 to 2 ,000 meters shock test (operating) iec 60068 - 2 - 27, half sine wave : 10 g for a duration of 11 ms, 1 shock for x direction vibration (operating) iec 60068 - 2 - 6, sine wave : 10 - 50 0hz @ 19.6 m/s2 ( 2 g peak); 10 min per cycle, 6 0 min for x direction pollution degree 2 protections overvoltage < 34.8v , selv output, auto - recovery overload / overcurrent 110- 150 % of rated load current, hiccup mode, non - latching (auto - recovery when the fault is removed) over temperature auto - recovery short circuit auto - rec overy when the fault is removed degree of protection ip 20 protection against shock class i with pe * connection *pe: primary earth reliability data mtbf > 7 00,000 hrs. as per telcordia sr - 332 i/p: 100vac, o/p: 100% load, ta: 35c expected cap life time 10 years ( 230vac , 50% load @ 40c )
technical d at asheet sync din rail power supply 24v 30w 1 phase (nec class 2) / drs - 24v30w1az all parameters are specified at 25 c ambient unless otherwise indicated. www. deltapsu .com ( march 201 5 , rev. 0 0 ) 4 safety standards / directives electrical safety tuv bauart to en 60950 - 1 , ul/cul recognized to ul 60950 - 1, csa c22.2 no. 60950 - 1 (file no. e131881 ) , cb scheme to iec 60950 - 1 , limited power source (lps) industrial control equipment ul/cul listed to ul 508 and csa c22.2 no. 107.1 - 01 (file no. e338991 ) class 2 power supply ul/cul recognized to ul 60950 - 1, csa c22.2 no. 60950 - 1 ccc gb9254, gb17625.1 and gb4943.1 ? 2000m ?? ce in conformance with emc directive 2004/108/ec and low voltage directive 2006/95/ec material and parts rohs directive 2011/65/eu compliant galvanic isolation input to output 3 .0 kvac input to ground 1.5kvac output to ground 0.5kvac emc emc / emissions cispr 22, en 55022, en 61000 - 6 - 3, en 61000 - 6 - 4, fcc title 47: class b immunity to en 55024 electrostatic discharge iec 61000 - 4 - 2 level 3 criteria a 1) air discharge: 8kv contact discharge: 8 kv radiated field iec 61000 - 4 - 3 level 2 criteria a 1) 80mhz - 1ghz, 10 v/m with 1khz tone / 80% modulation electrical fast transient / burst iec 61000 - 4 - 4 level 3 criteria a 1) 4 kv surge iec 61000 - 4 - 5 level 4 criteria a 1) common mode 2) : 4 kv differential mode 3) : 2 kv conducted iec 61000 - 4 - 6 level 3 criteria a 1) 150khz - 80mhz, 10 vrms power frequency magnetic fields iec 61000 - 4 - 8 criteria a 1) 1a/meter voltage dips iec 61000 - 4 - 11 > 100 % dip; 1 cycle ( 2 0ms) voltage fluctuation and flicker iec/en 61000 - 3 - 3 1) criteria a: normal performance within the specification limits 2) asymmetrical: common mode (line to earth) 3) symmetrical: differential mode (line to line)
technical d at asheet sync din rail power supply 24v 30w 1 phase (nec class 2) / drs - 24v30w1az all parameters are specified at 25 c ambient unless otherwise indicated. www. deltapsu .com ( march 201 5 , rev. 0 0 ) 5 block diagram device description 1 ) input terminal block connector 2 ) output terminal block connector 3 ) dc voltage adjustment potentiometer 4 ) dc ok led (green) 5 ) universal mounting system
technical d at asheet sync din rail power supply 24v 30w 1 phase (nec class 2) / drs - 24v30w1az all parameters are specified at 25 c ambient unless otherwise indicated. www. deltapsu .com ( march 201 5 , rev. 0 0 ) 6 dimensions l x w x d: 75 x 21 x 89.5 mm engineering data de- rating note 1 . power supply components may degrade, or be damaged, when the power supply is continuously used outside the shaded region, refer to the graph shown in fig. 1. 2 . if the output capacity is not reduced when th e surrounding air temperature > 55 c, the device may run into over temperature protection. when activated, the output voltage will go into bouncing mode and will recover when the surrounding air temperature is lowered or the load is reduced as far as necessary to keep the device in working condition . 3 . in order for the device to function in the manner intended, it is also necessary to keep a safety distance of 25 mm with adjacent units while the device is in operation. 4 . depending on the surrounding air temperature and output load delivered by the power sup ply, the device can be very hot! 5 . if the device has to be mounted in any other orientation, please do not hesitate to contact info@deltapsu.com for more details. fig. 1 de - rating for vertical mounting orientation - 1 0c to - 2 0c de - rate power by 5% / c > 55c de - rate power by 3.33 % / c
technical d at asheet sync din rail power supply 24v 30w 1 phase (nec class 2) / drs - 24v30w1az all parameters are specified at 25 c ambient unless otherwise indicated. www. deltapsu .com ( march 201 5 , rev. 0 0 ) 7 output d e - rating vs. i nput v oltage assembly & installation the power supply unit (psu) can be mounted on 35mm din rails in accordance with en60715. the device should be installed with input terminal block at the bottom. each device is delivered ready to install. mounting ? no output power de - rating across the entire input voltage range dismounting fig. 2 .1 mounting snap on the din rail as shown in fig. 2.1: 1 . tilt the unit upwards and insert it onto the din rail. 2 . push downwards until stopped. 3 . press against the bottom front side for locking. 4 . shake the unit slightly to ensure that it is secured. fig. 2.2 dismounting to uninstall, pull or slide down the latch with screw driver as shown in fig. 2.2. then slide the power supply unit (psu) in the opposite direction, release the latch and pull out the power supply unit (psu) from the rail.
technical d at asheet sync din rail power supply 24v 30w 1 phase (nec class 2) / drs - 24v30w1az all parameters are specified at 25 c ambient unless otherwise indicated. www. deltapsu .com ( march 201 5 , rev. 0 0 ) 8 safety instructions functions graph illustrating the start - up time, rise time, and hold - up time start - up time the time required for the output voltage to reach 90% of its set value, after the input voltage is applied. rise time the time required for the output voltage to change from 10% to 90% of its set value. hold - up time hold up time is the tim e when the ac input collapses and output voltage retains regulation for a certain period of time. the time required for the output to reach 9 0 % of its set value, after the input voltage is removed. C always switch mains of input power off before connecting and disconnecting the input voltage to the unit. if mains are not turned off, there is risk of explosion / severe damage. C to guarantee sufficient convection cooling, keep a distance o f > 8 0mm above and below the device as well as a lateral distance of 25 mm to other units. C note that the enclosure of the device can become very hot depending on the surrounding air temperature and load of the power supply. risk of burns! C do not insert any o bjects into the unit. C hazardous voltages may be present for up to 5 minutes after the input mains voltage is disconnected. do not touch the unit during this time. C the power supplies unit should be installed in minimum ip54 rated enclosure. C the power suppli es are built in units and must be installed in a cabinet or room (condensation free environment and indoor location) that is relatively free of conductive contaminants.
technical d at asheet sync din rail power supply 24v 30w 1 phase (nec class 2) / drs - 24v30w1az all parameters are specified at 25 c ambient unless otherwise indicated. www. deltapsu .com ( march 201 5 , rev. 0 0 ) 9 inrush current inrush current is the peak, instan taneous, input current measured and, occurs when the input voltage is first applied. for ac input voltages, the maximum peak value of inrush current will occur during the first half cycle of the applied ac voltage. this pe ak value decreases exponentially during subsequent cycles of ac voltage. dynamic response the power supply output voltage will remains within 5% of its steady state value, when subjected to a dynamic load from 10 to 100% of its rated current. overvoltage protection the power supplys overvoltage circuit will be activated when its internal feedback circuit fails. the output voltage shall not exceed its specifications defined on page 3 under protections. overload & overcurrent protections t he power supplys overload (olp) and over current (ocp) protections will be activated when output current exceeds 110- 150% of i o (max load). in such occurrence, once the power supply has reached its maximum power limit, the protection is activated and the power supply will go into hiccup mode (auto - recovery). the power supply will recover once the fault condition of the olp and o cp is removed and i o is back within the specifications. it is not recommended to prolong the duration of i o when it is <110 - 150 % but >100%, since it may cause damage to the psu. over temperature protection as mentioned above, the power supply also has over temperature protection (otp). i n the event of a higher operating temperature at 100% load , the power supply will run into otp when the operating temperature is beyond what is recommended in the de - rating g raph. when activated, the output voltage will go into bouncing mode until the temperature drops to its normal operating temperature as recom mended in the de - rating graph . short circuit protection the power supplys output olp/ocp function also provides protection against short circuits. when a short circuit is applied, the output current will operate in hiccup mode, as shown in the illustration in the olp/ocp section on this page. the power supply will return to normal operation after the short circuit is removed.
technical d at asheet sync din rail power supply 24v 30w 1 phase (nec class 2) / drs - 24v30w1az all parameters are specified at 25 c ambient unless otherwise indicated. www. deltapsu .com ( march 201 5 , rev. 0 0 ) 10 operating mode ? redundancy operation in order to ensure proper redundancy operation for the power supply unit (psu), ensure that the output voltage difference between the two units is kept at 0.45 ~ 0.50v for 24v supplies. follow simple steps given below to verify: step 1. measure output voltage of psu 1 and psu 2. if psu 1 is the master unit, then v o of psu 1 must be higher than psu 2. in order to set the output voltage, connect the power supply to 50% load and set the psu 1 and psu 2 output voltage. step 2. connect the right drr module, 20a as per the system requirement to the power supply units psu 1 and psu 2 at v in 1 & v in 2 respectively. step 3. connect the system load from v out . please note that output voltage v out from drr module will be = v o (output voltage of power supply) C v drop * (in drr module). ? parallel operation these drr modules can also be used for parallel function in order to increase the output power by n+1 (e.g. 2.5a + 2.5a = 5a or 2.5a + 2.5a + 2.5a = 7.5a) or current sharing, and thus increasing the power supply and system reliability. though the drs - 24v30w1az is not designed for current sharing, a good current sharing between two power supplies can be achieved by following simple steps as below (refer to fig. 4 for the connection diagram). step 1 . set output load condition for both supplies at 50% and measure the output voltages. step 2. adjust output voltages to the same level or within 25mv difference. step 3 . connect psu 1 and psu 2 with the drr - 20a module and measure at v in 1 & v in 2 to verify the voltage difference. ensure the voltages are within 25mv. step 4 . output voltage from drr module v out will be = v o (output voltage of power supply) C v drop * (in drr module). *v drop will vary from 0.60v to 0.90v (typical 0.65v) depending on the load current and surrounding air temperature. fig. 3 redundancy / parallel operation connection diagram
technical d at asheet sync din rail power supply 24v 30w 1 phase (nec class 2) / drs - 24v30w1az all parameters are specified at 25 c ambient unless otherwise indicated. www. deltapsu .com ( march 201 5 , rev. 0 0 ) 11 others delta rohs compliant restriction of the usage of hazardous su bstances the european directive 2011/65/e u limits the maximum impurity level of homogeneous materials such as lead, mercury, cadmium, chrome, polybrominated flame retardants pbb and pbde for the use in electrical and electronic equipment. rohs is the abbreviation for restriction of the use of certain hazardous substances in electrical and electronic equipment. this product conforms to this standard.

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