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3.4.1 AC Grid Types and Connections

The default AC Grid connection is 3Ø-3W. It can also connect 3Ø-4W with Neutral (N).

The inverter will operate from the following grid connections without need of an

external transformer:

ATTENTION

3.4.2 Required Protective Devices

It is recommended to install an upstream circuit breaker between AC side and

inverter side for over current protection.

3.4.3 AC Wiring Preparation

Model

Upstream circuit breaker

M70A_260

150A max.

M50A_260

125A max.

• The cross-sectional area for each AC conductor is shown below.

• The information and notice of cable using is shown on next page.

TNC system

230/400V

inverter

PE/N

TNC-S system

230/400V

TT system

230/400V

IT system

230/400V

TNS system

230/400V

Figure 3-13: Size of AC conductors

outer

jacket

Conductor cross-section:

M70A_260 -

Cu: 35 mm

(1 AWG) ~ 120 mm

(250 kcmil)

Al: 60 mm

(2/0 AWG) ~ 120 mm

(250 kcmil)

M50A_260 -

Cu: 25 mm

(2 AWG) ~ 60 mm

(2/0 AWG)

Al: 35 mm

(1 AWG) ~ 60 mm

(2/0 AWG)

Stripping length: 20mm

Installation

Содержание M50A 260

Страница 1: ...Grid tie Transformerless Solar Inverter The power behind competitiveness www deltaww com M70A_260 M50A_260 Operation and Installation Manual...

Страница 2: ......

Страница 3: ...hanical Installation 3 2 1 Vertical wall mount 3 2 2 Ground Mount Option 3 3 Door 3 4 Electrical Installation for AC Wiring 3 4 1 AC Grid Types and Connections 3 4 2 Required Protective Devices 3 4 3...

Страница 4: ...D 5 3 External String Fuse 5 4 Smart Fans Replacement and Filter Cleaning 5 4 1 Location of failure fan for M50A_260 5 4 2 Power Module PM Fan Tray 5 4 3 Internal Fan 1 5 4 4 Internal Fan 2 5 5 De Com...

Страница 5: ...re 3 15 Location for AC terminal Figure 3 16 DC Wiring illustration Figure 3 17 location of H4 connectors to connect array wiring DC Figure 3 18 Installation methods for protective frame Figure 3 19 M...

Страница 6: ...The corresponding fan location to the fan fail code on DSS Figure 5 10 Disassembling fan tray from PM chassis Figure 5 11 Internal fan 1 location remove the shield cover Figure 5 12 Take off the inte...

Страница 7: ...on Table 4 1 LED indicator Table 4 2 LED COMM indicator Table 6 1A Error Codes Field Fault and Messages Table 6 2A Fault Codes inverter fault Messages Table 6 2B Fault Codes inverter fault Messages Ta...

Страница 8: ...a the product has been installed and or repaired improperly b the product has been misused without following the instructions on this user manual c the product has failed due to incorrect unpacking 1...

Страница 9: ...nsure long term operation of the solar inverter it is imperative this section be read carefully and all the safety instructions understood before using this inverter This user manual provides importan...

Страница 10: ...y instructions while you use the product 1 2 2 Symbols DANGER This warning indicates an immediate hazard which will lead to death or serious injury This warning indicates a hazardous condition which m...

Страница 11: ...can lead to death or serious injury This warning indicates a potential burn hazard Use care when touching surfaces when operating the product Do not perform any task until the product cools down suff...

Страница 12: ...ion between the DC and AC sides PV array circuits connected must be floating with respect to ground i e must not be referenced bonded to ground If grounded PV arrays are connected to the inverter the...

Страница 13: ...ctive Frame 6 pcs Protect DC connectors 7 H4 Connector 18 12 pairs DC String inputs 2 1 pc 3 User Manual Important instructions for solar inverter Safety instructions should be followed during install...

Страница 14: ...grounding M6 threaded stud SUB_1G Antenna 2 8 AC Output M70A_260 2 5 AC Output M50A_260 Antenna Bracket Toggle Latches RS 485 DC Switch Wi Fi Antenna port optional Wi Fi module wiring port optional DC...

Страница 15: ...n the inverter The inverter contains no components that must be maintained or repaired by the operatoror installer Opening the housing will void the warranty Before working with the inverter you must...

Страница 16: ...Figure 2 4 External internal view M50A_260 M70A_260 16 Introduction...

Страница 17: ...inal Internal grounding Communication module Component NO Component 1 2 Type II DC SPD 3 Type II AC SPD 4 Internal fan 1 Internal fan 2 5 6 7 Table 2 4 layout description Figure 2 5 layout M50A_260 M7...

Страница 18: ...erter 3 Installation In some locations mounting the inverter in direct sunlight may cause the inverter to enter a thermal derating mode To eliminate this concern a shade structure over the inverter ch...

Страница 19: ...e Figure 3 2 3 1 Unboxing Review Figure 3 1 The step to unpacking the inverter Need more than two people to stand up For ground mount installation It is recommended to install the grounded brackets fi...

Страница 20: ...Figure 3 2 Handle position for handling Prohibit to force with fan shutter Prohibit to force with DC connector Prohibit to force with DC switch Prohibit to force with AC gland 20 Installation...

Страница 21: ...5 Secure the inverter by 2 M6 screws on the position shown as Figure 3 5 These are also grounding points for equipment grounding To ground the inverter please refer to Section 3 5 2 3 2 Mechanical In...

Страница 22: ...Figure 3 3 Inverter dimensions 629 mm 80 mm 22 4 mm 699 mm 264 mm Figure 3 4 Mounting bracket dimensions 6 5 400 592 538 30 25 82 82 82 82 82 31 17 27 460 unit mm 22 Installation...

Страница 23: ...Figure 3 5 Positions of mounting screws Figure 3 6 Permitted mounting positions 90 280mm Positions for least amount of mounting bracket screws or 23 Installation...

Страница 24: ...clearances 415mm 570mm 840mm 708mm 1300mm 990mm Wall Inverter 2 Inverter 1 700mm 690mm 400 mm If wiring without door To remove the door please refer to section 3 3 320mm Figure 3 7 Prohibited mountin...

Страница 25: ...he appropriate height of the inverter In order to avoid interference please do not insatll metal clapboard when using SUB_1G antenna When M70A M50A mounted back to back clapboards must be installed on...

Страница 26: ...ional part please contact the customer service center for the detail 1 Fix the grounded brackets to the bottom of the inverter as Figure 3 10 2 Mount the inverter with grounded brackets to the ground...

Страница 27: ...inverter grounded brackets to ground mounting base height If the installation location has a risk of flooding or accumulated snow please raise the appropriate height of the inverter or 12 5 mm 310 mm...

Страница 28: ...Installation for AC Wiring In order not to damage the components in the inverter ensure the correct conductor is connected to the appropriate AC terminal on the inverter CAUTION WRONG AC WIRING In or...

Страница 29: ...70A_260 150A max M50A_260 125A max The cross sectional area for each AC conductor is shown below The information and notice of cable using is shown on next page TNC system 230 400V inverter inverter i...

Страница 30: ...commended cost the neutral fat or acid free alkali free vaseline on the end of the conductor and connect the conductor immediately It s necessary to treat the oxide layer when reconnect the wire The s...

Страница 31: ...amping point If the contact resistance between the aluminum conductor and clamping point is too high the clamping point can become very hot and even catch fire in extreme cases To ensure a safe and re...

Страница 32: ...Section 3 4 4 Ensure the correct conductor is connected to the appropriate terminal After conductor is inserted use 8 mm M70A_260 5mm M50A_260 hex wrench to tighten L1 L2 L3 N terminal with the torqu...

Страница 33: ...ith system voltage under 1100V are permitted for use Ensure the two DC switches are placed in the OFF position and the PV array is disconnected when DC conductors are connected The PV Array current ca...

Страница 34: ...uctors used are Cu and sized to the correct ampacity per NEC or other local code Strip off all wires for 6 5 7 5 mm The cross sectional area for each DC conductor is 12 10 AWG 4 6mm2 Please read the f...

Страница 35: ...Figure 3 17 location of H4 connectors to connect array wiring DC SWITCH 1 SWITCH 2 SWITCH 1 SWITCH 2 M70A_260 M50A_260 35 Installation...

Страница 36: ...Figure 3 18 Installation methods for protective frame PUSH PUSH Install protective frames before plug in DC connectors 36 Installation...

Страница 37: ...unding Figure 3 19 Mount the equipment grounding To ground the inverter please crimp the grounding wire to ring terminal lug and fix it on the grounding point shown as figure 3 19 Screw torque M6 3 9...

Страница 38: ...bracket are shown in Figure 3 20 3 22 Save the nut after antenna installed Use the wrench to lock antenna with 1 2 N m torque Remove the nut 13mm Open end wrench Antenna Location Always keep nut and s...

Страница 39: ...20 cm There must be no obstacles within 20 cm around the antenna Figure 3 21 Attentions of installing antenna 90 Keep antenna pointing upright 39 Installation...

Страница 40: ...w com p product_manual ATTENTION 1 Turn the antenna counterclockwise by about 45 degrees 2 Put on the antenna bracket 3 Turn the antenna to the proper position 4 Tighten the 3 screws to antenna bracke...

Страница 41: ...t terminals for use in various applications Details for each are presented below There s a 12VDC source between VCC GND for use with external device 3 7 Communication Module Connections Figure 3 23 Co...

Страница 42: ...Please refer to the chapter 5 1 and open the door the communication module is at the circle that is shown in Figure 3 24 Figure 3 24 Location and access to Communication Module 42 Installation...

Страница 43: ...d only the last inverter in the chain must have its bus termination resistor switched ON Figure 3 25 If the length of any RS 485 bus is greater than 610m the use of Belden 3105A cable or eq is recomme...

Страница 44: ...nection illustration RS485 USB or RS485 RS232 Terminal Resistor 120 1 2W DATA to DATA Table 3 3 Bus Termination switch settings Switch 1 Terminal Resistor ON Terminal Resistor OFF OFF ON Termination s...

Страница 45: ...digital power reduction control is available that can be set to limit the inverter s available active output power The control settings for this function are made by placing a hardware short jumper or...

Страница 46: ...of the inverter The terminal block for this function is shown in Figure 3 27 The terminals marked in the figure identify the dry contact connection The operation of the dry contact is normally open T...

Страница 47: ...o the positions shown in Figure 3 28 the other to the ground It might cause damages to the inverter if probes are applied to inappropriate positions 3 8 On Site Insulation Test Figure 3 28 Precautions...

Страница 48: ...ion Introduction Figure 4 1 Front Panel Display LED Indicator RED YEL LED Indicator GRN LED Indicator GRN Condition Grid Green Alarm Red Yellow Countdown FLASH OFF On Grid ON OFF Inverter Fault Remote...

Страница 49: ...of Inverters and press 3 Show the inverter serial number and ID and the status display OK is completed The Auto ID function could set all inverter IDs at monitoring center after wiring RS 485 4 2 1 A...

Страница 50: ...ers of ID setting less than amounts of inverter status show False Figure 4 3 False of auto ID setting by tool The numbers of ID setting more than amounts of inverter status show False YES YES 50 Commi...

Страница 51: ...ure 4 4 Steps of set ID 2 1 Enter the ID you want to change 2 Click to complete The wrong ID setting of overlapping YES Figure 4 5 False of set ID To adjust the ID order please follow the settings bel...

Страница 52: ...ure 4 6 Steps of set country 2 2 Click the to complete country setting Enter as a country that does not exist YES Figure 4 7 False of set country Set country by the AUTO ID 1 Entry the local country I...

Страница 53: ...terference problem make sync time fail please try again YES Figure 4 9 False of synchronize time Figure 4 8 Steps of synchronize time YES Click the to complete time setting 1 Synchronize time by Auto...

Страница 54: ...1G DSS pdf https mydeltasolar deltaww com p product_manual Data Collector PPM DC1_100 Operation and Installation Manual Please go to the following link to refer to the setting method manual Active pow...

Страница 55: ...pen the door under raining condition Switch DC and AC power off and wait until LED display turns off Remove the three screws on the antenna bracket Turn the antenna and bracket counterclockwise by abo...

Страница 56: ...Figure 5 1 Open and close the door OFF OFF Screw torque M4 0 98 N m 56 Maintenance...

Страница 57: ...Figure 5 2 To secure door by hexagon driver After opening the door please make sure the door is fixed by hexagon driver to avoid strong wind breaking it ATTENTION 57 Maintenance...

Страница 58: ...A_260 have the surge protection device SPD at both AC and DC side as shown in Figure 5 3 5 2 Replacement of Surge Protection Devices SPD Figure 5 3 AC and DC SPD modules M50A_260 AC SPD DC SPD M70A_26...

Страница 59: ...riodically may need replacement The SPDs are located in the inverter If a warning message AC Surge or DC Surge appears on APP and DSS follow the procedure below to replace the SPD Determine which SPD...

Страница 60: ...s on the right side and left side of PCB 5 Lift and remove the entire AC SPD PCB and replace with new unit 6 Install the new AC SPD using the above procedure in reverse order Tighten the 6 screws to a...

Страница 61: ...Figure 5 5 Steps of changing SPDs DC SPD AC SPD A B Screw torque 0 8 N m A B Please use manual pre tighten before attaching 61 Maintenance...

Страница 62: ...gure 5 7 Remove wirings as connectors of DC SPD DC SPDs AC SPDs A Screw torque 2 45 N m A Screw torque 2 45 N m G Screw torque 0 8 N m G Screw torque 0 8 N m A A A A G G A A A A G G M50A_260 A A A G G...

Страница 63: ...alarm and places the inverter in a power de rate mode as required for safe operation M70A_260 and M50A_260 has one fan tray for power module cooling and two internal fans for inside air circulation Fi...

Страница 64: ...nternal F00 F01 F00 F01 F02 If the Error code comes Fan Fail please refer to the corresponding code shown on DSS and procedure in following chapters to remove the fan Prior to beginning any maintenanc...

Страница 65: ...an These fans are protected by air filters at the plenum air inlet and outlet Refer to Figure 5 10 and follow the steps outlined below 1 Remove four screws that secure inlet filter cover to case Check...

Страница 66: ...Figure 5 10 Disassembling fan tray from PM chassis Screw torque required for assembling 0 6 N m Screw torque required for assembling 0 98 N m snap fit A A B A A B 66 Maintenance...

Страница 67: ...ing screws shown in Figure 5 11 and remove the fan cabinet 3 Disconnect the power connector on the DC SPD board 4 Lift the entire fan assembly shown in Figure 5 12 5 Clean assembly or replace with a n...

Страница 68: ...12 Take off the internal fan 1 Figure 5 13 Replace with a new fan Screw torque required for assembling 0 6 N m Screw torque required for assembling 0 8 N m M50A_260 M50A_260 M70A_260 M70A_260 68 Main...

Страница 69: ...e fan cabinet 2 Disconnect the power connector on the comm board 3 Lift the entire fan assembly shown in Figure 5 15 4 Clean assembly or replace with a new fan shown in Figure 5 16 5 Reassemble using...

Страница 70: ...Figure 5 16 Replace with a new fan Figure 5 15 Take off the internal fan 2 Screw torque required for assembling 0 8 N m Screw torque required for assembling 0 6 N m 70 Maintenance...

Страница 71: ...om chassis requires opening string level H4 connectors in order to break string continuity at the inverter H4 connectors are not intended for use as a load break switch therefore Ensure inverter DC sw...

Страница 72: ...M50A weighs more than 64 kg There is risk of injury if the inverter is carried incorrectly or dropped during transport or when attaching or removing it from the wall mounting bracket Personnel should...

Страница 73: ...suitable range 2 Check Grid code Grid setting 3 Check the connection in AC terminal AC Volt High E11 E13 E16 E18 E21 E23 Grid voltage high 1 Check the utility voltage within the suitable range 2 Check...

Страница 74: ...nnection if the error code comes along with W08 2 Contact customer service for technical support 1 Check the polarity of PV connection if the error code comes along with W08 2 Contact customer service...

Страница 75: ...echnical support AC RLY Short F28 AC RLY Open F29 Bus Unbalance F30 Voltage unbalance of DC link Restart inverter by DC switches Bus Voltage High F31 F33 F35 Voc of PV array is over 1000Vdc Restart in...

Страница 76: ...minal 4 Check the utility voltage on the inverter terminal 5 1 Check the utility voltage on the inverter terminal 5 2 Check reactive power setting 6 Check the Solar voltage on the inverter terminal 7...

Страница 77: ...Tracker M70A_260 M50A_260 1100 V 1 6 50A 200 1000 V 460 900 V 2 390 900 V 3 250 V Built in 600 V Max Input Power Each MPPT 15 7 kW Total 78 5 kW Each MPPT 11 7 kW Total 58 kW Each MPPT 26 A Total 156...

Страница 78: ...05 VDE 0124 100 VDE AR N 4110 NB T 32004 2018 GB T 19964 LVRT CNS 15382 General Data Dimension W x H x D Weight 699 x 629 x 264 mm Operating Temp Range 25 to 60 C Derating Above 50 C Protection Level...

Страница 79: ...iency Pn 70kW Efficiency Output voltage at 400Vac 0 20 40 100 80 60 93 94 95 96 97 98 99 100 460V 600V 800V Output Power Efficiency Pn 50kW 0 20 40 100 80 60 88 90 92 94 96 98 100 390V 600V 800V Outpu...

Страница 80: ...ve with Ambient Temprature Output voltage at 230Vac 400Vac PF 1 Ambient Temperature C 30 0 10 20 40 50 60 50 60 70 80 90 100 110 460V 520V 600V 720V 800V 900V P Pn Pn 50kW Ambient Temperature C 30 0 1...

Страница 81: ...nt Temprature Output voltage at 230Vac 400Vac PF 0 9 Ambient Temperature C P Pn Pn 70kW 30 0 10 20 40 50 60 50 60 70 80 90 100 110 460V 520V 600V 720V 800V 900V P Pn Pn 50kW Ambient Temperature C 30 0...

Страница 82: ...ith Ambient Temprature Output voltage at 230Vac 400Vac PF 0 9 S Sn Sn 70kVA Ambient Temperature C 30 0 10 20 40 50 60 50 60 70 80 90 100 110 460V 520V 600V 720V 800V 900V P Pn Pn 50kW Ambient Temperat...

Страница 83: ...ue 2 Fan Tray 6 kgf cm 0 6N m 1 Filter 10 kgf cm 0 98N m 3 Antenna 4 Antenna Bracket M4 12 kgf cm 1 2N m 6 Grounding M6 40 kgf cm 3 9N m 10 kgf cm 0 98N m Grounded Bracket 250 kgf cm 24 5N m 5 Appendi...

Страница 84: ...ternal Fan 2 Tray 6 kgf cm 0 6N m 1 Internal Fan 2 Cover 8 0 kgf cm 0 8N m 3 Internal Fan 1 Cover 4 Internal Fan 1 Tray 8 0 kgf cm 0 8N m 6 kgf cm 0 6N m H4 wire 5 12 10 AWG 4 6mm Appendix 2 Assembly...

Страница 85: ...e Latch 8 0 kgf cm 0 8N m 25 kgf cm 2 45N m Communication port 5 6 AC terminal M70A 317 kgf cm 31N m 20 AWG 0 5mm 150 kgf cm 14 7N m L1 L2 L3 N PE M70A_260 Cu 35 mm 1 AWG 120 mm 250 kcmil Al 60 mm 2 0...

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Страница 88: ...Version 01210108 5013289600...

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