SECTION 1.0 Introduction and Purpose The purpose of this manual is to describe the proper installation, operation, maintenance, and troubleshooting of the Ideal Power (“IPWR”) SunDial™ 30PV 30kW 3-Phase Commercial String Inverter, as well as the SunDial™ Plus 30PV+S: 30kW 3-Phase Commercial PV Inverter with Energy Storage.
• DC3 (+S systems only): an auxiliary DC port dedicated to battery energy storage systems. RMA and Service Contact Do not ship or return the Inverter without prior authorization from Ideal Power Inc. A Return Material Authorization (RMA) number must first be obtained from Ideal Power’s customer service department.
Inverter models covered in this manual: 30PV; 30PVF; 30VPV +S; 30PVF+S. SAVE THESE INSTRUCTIONS This manual contains important instructions for the Ideal Power 30PV; 30PVF; 30PV +S; 30PVF+S PV Inverters. All wiring must be in accordance with the National Electric Code ANSI/NFPA 70.
opening AC and DC Disconnects to assure that the Inverter’s internal capacitors have discharged to zero voltage before performing any work on the Inverter. Utilize lockout procedures to insure that both AC and DC Disconnects remain in the off position during all service periods.
Failure to use ESD control measures while servicing the equipment may result in component damage and void the warranty. Warning – Service and maintain the Inverter in accordance with applicable Ideal Power procedures. Discontinue Inverter use until all equipment defects and safety hazard have been cured.
Integrated Safety Features The 30PV; 30PVF; 30PV+S; and the 30PVF+S incorporate the following safety features: Table 1: Inverter Safety Features Feature Action Hinged Front and Prevents access to hazardous AC and DC voltages and Combiner Doors protects internal circuitry. Integrated fused 6- Prevents access to hazardous DC voltages and protects string Combiner with internal circuitry.
Ground Fault Detection – Ground Referenced PV Combiner (30PV / 30PV+S) For ground referenced PV array connections, the negative leg of DC2 (PV) and the negative leg of DC3 (Battery: +S systems only) are electrically common and referenced to earth ground through a shared 1 A GFDI fuse to detect ground fault conditions. If such conditions are detected, the Inverter is automatically taken off-line.
AC Frequency and Voltage Fault Detection The quality of the power delivered to the utility line must meet or exceed the requirements as specified in IEEE 1547a. If the utility frequency or voltage shifts outside the regulatory specified limits, the Inverter will automatically detect the condition and shutdown.
DC Charging Output Voltage Range 100 to 1000 Vdc Utility Interconnection Voltage and Frequency Trip UL 1547.1 Compliant, Limits and Trip Times see Tables 6 and 7. Synchronization In-rush Current 4.4 A Trip Time Accuracy 20 mS Trip Limit Accuracy Voltage 6 volts Trip Limit Accuracy Frequency .05 hz...
Figure 1: IPWR Approved Shipping Container Mounting Bracket Mounting Hardware Foam Customer Quick Link Card Inverter Inverter Mounting The SunDial™, when installed on its wall mounting bracket, weighs approximately 160 pounds. External dimensions are 20.7” W x 51.1” H x 16.6” D. The SunDial™ MUST always be installed in a vertical upright position for final installation, as well as evaluation purposes.
Warning: The unit must be mounted upright and level for the closed loop liquid cooling system to work correctly. Figure 2: Enclosure Exterior Step 1. Secure the wall mounting bracket to the desired surface using either a metal Uni-strut type railing rated for the Inverters weight or a concrete wall. Ensure mounting bracket is level within +/- 5 degree.
Figure 3: Door Clearance Guide The Inverter installation must allow for the front door to swing freely open for service purposes. Although 90 and 180-degree swing angles are shown above, a minimum swing angle of 135 degrees is required to ensure that access for initial system wiring and ongoing maintenance of the unit is not compromised.
Inverter Removal and Preparation for Shipment 1. Open AC Disconnect. 2. Open DC Disconnect(s). 3. Wait five (5) minutes for capacitors to discharge. 4. Open the enclosure’s hinged access front cover. 5. Disconnect the AC and DC power cables. 6. Disconnect the Conduit connections. 7.
Important information: - Ideal Power’s SunDial™ Inverters feature AC power interfaces that are galvanically isolated from all DC source(s). Figure 4: AC1 and DC2/DC3 Interconnect Boards (+S version shown) Table 3: Terminal Tightening Torques Terminal Block Location Wire Size / Torque...
made between the phase legs. No neutral connection is required, or provided on the SunDial™ Series. Torque all connections as outlined in Table 3. AC External Circuit Protection and Disconnect The SunDial™ must be installed with external circuit protection. A 50A 3-Phase 3-wire AC breaker, rated at 480 Vac is commonly used for such purposes.
connection to these terminals as this would interfere with the GFDI function. • Note that the negative input for DC2 (T8: DC COM) and the negative input for DC3 (T9: DC COM: +S option only) are wired together and are electrically common behind the Filter Chokes installed on DC2 and DC3 (+S option only).
The Combiner’s base includes three (3) one-inch flexible conduit fittings for low-voltage control, AC, and DC3 battery connections (+S option only). Both versions of the Combiner also include 6-pairs of MC4-type bulkhead connectors for field-termination of PV Strings. Packaged within each Combiner are 6-pairs of field-crimpable MC4-type connectors (crimp tool is not provided).
Figure 6. The blue plugs shown are removed and discarded prior to termination. A total of 6-female and 6-male 10-gauge Amphenol MC4 crimp connectors are provided by Ideal Power (bubble-packed in the Combiner), for field wiring and termination.
Ground-Referenced Combiner The 30PV and 30PV+S SunDial™ Inverters utilize a circuit that references the negative leg of the combined PV Strings to earth ground via Ground Fault Detection Interface (GFDI) circuit, which senses DC fault currents. The 1 A fault fuse located on the DC2/DC3 Interconnect Board will open whenever a ground fault on DC COM of >...
Verification of Electrical Connections Use the following procedure to verify final Inverter wiring after completing the AC, DC, and Ground wiring as detailed in Section 5.0. High voltages are present and only qualified personnel following safety procedures detailed in Section 2.0 should attempt the following: 1.
i. For ground-referenced applications, meaure the voltage between earth ground and the appropriate string fuse input lug, or ii. For floating applications, measure the voltage between the positive input lug of the appropriate string fuse and it’s corresponding negative lug. c.
• No DC Port input ground faults have been detected. • DC Port input voltages are within the specified operating range, as set by the Modbus Interface. • There are no sensed fault conditions, as defined in Section 7.0. • AC grid voltage and frequency are within specified IEEE 1547.1 default ranges, and islanding is not detected.
Danger: HIGH VOLTAGE To eliminate high voltages inside the Inverter enclosure: • All DC Disconnects must be open • All AC Disconnects must be open • Wait at least five (5) minutes for internal capacitors to discharge DO NOT open the enclosure door or Combiner door until the Inverter has been rendered safe in this manner.
4. With the Inverter shut down, remove and inspect bottom fan intake filter by removing the retaining thumbscrew. Clean filter carefully with compressed air and re- assemble. 5. If the fan is noisy or otherwise suspect, contact Ideal Power for a replacement unit and installation instructions. Inverter Troubleshooting The procedures in this section are to be performed only qualified personnel.
Clearing GFDI Faults- Ground Referenced Applications In the event of a detected ground fault the Inverter will cease exporting or importing power. The fault will be noted on the front panel display. If the fault exceeds 1 A, the ground fault detection fuse will open. The DC2 Port (30PV) and the DC3 Port (30PV+S) both share a ground fault detection circuit and fuse.
Fault Handling An Ideal Power Inverter allows for a partly automated fault handling system which operates broadly as follows. When a fault limit is reached or exceeded during operation, the Inverter will shut down and flag an Active Fault. Provided the Inverter is being run in...
• Abort 2: fault is logged and unit is stopped. Reconnect timer 2 is used for restart. • Lockdown: fault is logged, unit stops, and requires an AC power cycle to restart. The severity levels determine if the fault is simply recorded or whether the Inverter should be automatically shut down.
For example: if Fault Set 1 were read via Modbus as hex 0C00; this translates to 0000.0000.0011.0000 in 16-bit binary format. That binary number Indicates that fault 26 and fault 27 are currently active. Note that fault positions 53 to 63 are reserved for future use (gray colored cells in above table).
Need help?
Do you have a question about the SunDial 30PV and is the answer not in the manual?
Questions and answers