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Summary of Contents for SMA Aux Transformer
- Page 1 Replacement Manual Spare-part set "Aux Transformer" for SUNNY CENTRAL STORAGE UP(-US) / SUNNY CENTRAL STORAGE UP-XT(-US) 6UP-820-002-003 ENGLISH AuxSupply-RM-en-10 | Version 1.0...
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Page 2: Legal Provisions
Legal Provisions The information contained in these documents is the property of SMA Solar Technology AG. No part of this document may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, be it electronic, mechanical, photographic, magnetic or otherwise, without the prior written permission of SMA Solar Technology AG. -
Page 3: Target Group
The tasks described in this document must only be performed by qualified persons. Qualified persons must have the following skills: • Knowledge of how to safely disconnect SMA inverters • Knowledge of how an inverter works and is operated • Training in the installation and commissioning of electrical devices and installations •... -
Page 4: Typographies In The Document
1 Information on this Document SMA Solar Technology AG Typographies in the document Typography Example bold • Messages • Connect the insulated conductors to the terminals X703:1 to • Terminals X703:6. • Elements on a user interface • Enter 10 in the field Minutes. -
Page 5: Intended Use
SMA Solar Technology AG 2 Safety 2 Safety Intended Use The product may only be installed in the following SMA inverters with the “External auxiliary power supply” option: • SC xxxx UP • SC xxxx UP-US • SCS xxxx UP •... - Page 6 2 Safety SMA Solar Technology AG DANGER Danger to life due to electric shock in case of a ground fault If there is a ground fault, components that are supposedly grounded may in fact be live. Touching live parts will result in death or serious injury due to electric shock.
- Page 7 SMA Solar Technology AG 2 Safety WARNING Danger to life from electric shock when entering the system Damaged insulation in the system can cause lethal currents to ground. Lethal electric shocks can result. • Ensure that the insulation resistance of the system exceeds the minimum value. The minimum value of the insulation resistance is: 14 kΩ.
- Page 8 • Carefully mount and dismount the auxiliary transformer. • Use a lifting aid for mounting and dismounting. This lifting aid can be ordered from SMA. • Wear personal protective equipment for all work on the product.
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Page 9: Scope Of Delivery
SMA Solar Technology AG 3 Scope of Delivery 3 Scope of Delivery Check the scope of delivery for completeness and any externally visible damage. Contact the Service if the scope of delivery is incomplete or damaged. Figure 1: Components included in scope of delivery... -
Page 10: Overview Of Terminals
4 Overview of terminals SMA Solar Technology AG 4 Overview of terminals Figure 2: Overview of the terminals for replacing the auxiliary transformer Position Designation Fuse F70 with terminal F70:2 EMC filtering device with terminal R70:N Terminal block of auxiliary transformer... - Page 11 SMA Solar Technology AG 5 Removal of Auxiliary Transformer 5 Removal of Auxiliary Transformer Required maintenance material (not included in the scope of delivery): ☐ Lifting aid (material number: 6UP-900-004-001) Procedure: 1. Disconnect the inverter on all poles from voltage source (see inverter manual or MV Power Station manual).
- Page 12 5 Removal of Auxiliary Transformer SMA Solar Technology AG 12. Remove the nuts and washers from the base and the grounding strap of the auxiliary transformer. Keep the screw material for remounting. 13. Lift the auxiliary transformer out of the inverter using the lifting aid. Observe the weight of the auxiliary transformer (89 kg (196 lb)).
- Page 13 SMA Solar Technology AG 6 Replacing the W662 Cable 6 Replacing the W662 Cable The W662 cable must be replaced in inverters of production version Q1, Q4 and A1 with option 13_2 (auxiliary power supply 120V). Procedure: 1. Ensure that all poles of the inverter are disconnected from all voltage sources.
- Page 14 7 Mounting the Auxiliary Transformer SMA Solar Technology AG 7 Mounting the Auxiliary Transformer Required maintenance material (not included in the scope of delivery): ☐ Lifting aid (material number: 6UP-900-004-001) Procedure: 1. Use the lifting aid to lift the supplied auxiliary transformer into the inverter and set it down at the installation position.
- Page 15 SMA Solar Technology AG 8 Checking the Functionality of Auxiliary Transformer 8 Checking the Functionality of Auxiliary Transformer 1. Ensure that the external supply voltage is connected. 2. Check voltage at terminals F70:2 and R70:N. 3. If the voltage applied is higher or lower than the relevant supply voltage (120 V / 230 V), check the installation of the auxiliary transformer.
- Page 16 9 Contact SMA Solar Technology AG 9 Contact If you have technical problems with our products, please contact the SMA Service Line. The following data is required in order to provide you with the necessary assistance: • Type of device • Serial number •...
- Page 18 www.SMA-Solar.com...
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