GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL About this Manual The purpose of this manual is to provide explanations and procedures for installing, operating, maintaining and troubleshooting the 100A Static Transfer Switch, associated rack‐mount shelf and Maintenance Bypass Switch unit. This manual should be read in conjunction with the manual for the complete SABRE Inverter System when installing and operating a system that incorporates the 100A STS, associated shelf and MBS unit. This manual includes three chapters: Chapter 1 – Introduction contains a general description, features and specifications. Chapter 2 – Installation and Operation provides detailed installation and operating information for the module, shelf and MBS unit including wiring. Chapter 3 – Maintenance and Troubleshooting contains information about how to maintain and fault find the STS module. ...
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2. This unit is designed for indoor use only. Do not expose any part of the system to rain, snow or spray. 3. To reduce the risk of fire hazard do not cover or obstruct any ventilation openings. Do not install the inverter system in a zero‐clearance compartment. 4. Use only attachments recommended or sold by UNIPOWER. Doing otherwise may result in a risk of fire, electric shock or injury to persons. 5. To avoid risk of fire and electric shock make sure that existing wiring is in good condition and that wire is not undersized. Do not operate the inverter system with damaged or substandard wiring. 6. Do not operate the inverter system if it has received a sharp blow, been dropped, or otherwise damaged in any way. ...
GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL 2. Introduction General Description The STS (Static Transfer Switch) module increases system reliability by automatically switching between the inverter output and the AC mains. By setting up the priority of operation, users can change the system status to “online mode” or “offline mode”. The online mode will supply power to the load from the inverters. In case of an inverter failure or overload, the STS will switch the load to the AC utility. In offline mode the load is always connected to the AC utility and will switch to the inverters in the event of ...
GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL Electrical Specifications Item Specification DC Auxiliary Power Input Voltage Range 40‐60Vdc AC Input 110/115/120 Vac: 89 to 138 Vac Voltage Range 208/220/230/240 Vac: 176 to 276 Vac Over voltage threshold 276 / 138 Vac Under voltage threshold 176/ 89 Vac Backfeed Protection Comply with safety requirement Redundant power supply design Startup by priority source or alternative AC Output Waveform Sinusoidal Nominal output voltage Same as mains AC or the output of Inverter modules Permissible frequency area Max. +/‐2.5% (Synchronize area of Inverter) Transfer time Typical 1/4cycle, DIN VDE 0558 Part 5; IEC 146‐4 Rated power 100A for 120/ 230Vac Operation methods Inverter priority/Mains priority 1.2 x Inom≧20s 1.6 x Inom ≧5s Over load capability 3200A≦ 10ms ( Mains bypass) Inom = 100A ...
GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL Physical Specifications Mechanical STS module Dimension in mm (inches) 218(8.6)W x 88(3.46)H x 270(10.6)D STS shelf Dimension in mm (inches) 483(19.0)W x 88.1(3.47)H x 330(13.0)D Weight 7kg/15.4lbs The STS10048 is hot swappable only when the MBS is set to Hot swappable Mains Bypass or Inverter Bypass When the STS10048 is used with the MBS2U‐100 mechanical Maintenance Bypass Switch module voltage free system Mechanical bypass switch requirement maintenance is possible. The MBS interlocks with the STS (MBS2U‐100) module so that the STS module cannot be removed without the maintenance bypass being activated. Forced cooling 2 Fans (replaceable) Figure 3. STS10048 Mechanical Outline Manual No. SABRE STS100‐1 Page 9 10/12 sabre_sts100-man...
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GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL Figure 6. MBS2U‐100 Mechanical Dimensions AC Output N AC Input N AC Output L AC Input L Terminal Block Terminal Block Terminal Block Terminal Block AC-L Input Signal cable STS-L AC-N GND AC-L L to STS to STS shelf Output Figure 7.
GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL Environmental Specifications Parameter Specification Noise 55 dB, ETS 300 753, class 3.1 Operation temperature: ‐20°C to +50°C Operating temperature ‐20°C to +70°C with derated performance Storage temperature ‐30°C to +85°C Operating humidity 95% RH (no condensing) Operating Attitude 1500m General Specification Parameter Specification Certifications UL Safety EN 62040‐1‐1 / IEC 62310‐1/ UL‐1778 EMC EN55022 class B MTBF > 200,000 hours as per Telcordia SR‐332. RoHS Compliant Alarm relay Dry contact alarm output Protection Specification 2.6.1 Principles of Operation The operation mode of the STS is closely linked with the position of MBS. ...
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GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL MBS Status Schematic operation principle of STS Description MBS Main Contact1 Inverter Maintenance Mains AC powers the load through the static switch SCR1 Backfeed Relay Inverters are on, but do not Mains provide any load power Inverters can be removed from the Inverter Bypass Relay Load system but the STS cannot Maintenance MBS can be switched from P2 to (P2) P1 and P3 position Inverter SCR2 SCR2 open, SCR1 and Back‐feed Relay closed ...
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GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL MBS Status Schematic operation principle of STS Description MBS Main Contact1 Mains Maintenance Inverter powers the load SCR1 through the STS Mains Backfeed Relay AC mains is disconnected from Mains the system and the STS cannot Bypass Relay Maintenance Load be removed from the system (P4) MBS can be switched from P4 to P3 and P5 Inverter SCR2 Back‐feed Relay and SCR1 open and SCR2 closed M BS M ain Contact2 MBS Main Contact1 Inverter Bypass ...
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GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL 120Vac 230Vac Default Voltage 110V/115V/120V 208V/220V/230V/240V Active 138Vac 276Vac Over Volt Recovery 134Vac 268Vac Active 89Vac 176Vac Under Volt Recovery 93Vac 184Vac System frequency 60Hz 50Hz Frequency high threshold 61.5Hz 51.25Hz Frequency high back 61.2Hz 51Hz Frequency low threshold 58.5Hz 48.75Hz Frequency low back 58.8Hz 49Hz ...
GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL 3. Installation and Operation Unpacking and Inspecting Upon receiving the STS module or chassis, remove the unit from its packaging and inspect it for scratches, cracks, broken connectors or missing accessories. Your inverter chassis should ship with the following accessories. If any are missing or damage is discovered, repack the unit and return it to the supplier. Figure 8. Packing List for the STS10048 module Figure 9. Packing List for the INVR2UCS Shelf 1. 1 x CAN cable for controller 2.
GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL Figure 10. Packing List for the MBS2U‐100 Maintenance Bypass Unit 1. 2 x 23” mounting brackets 2. 5 x inter-connection bus bars 3. 4 x M6 screws for brackets 4. 12 x M6 screws for bus bar Handling & Storage If the STS module, shelf and MBS unit are going to be stored prior to installation, they should be placed in a cool, dry, well‐ventilated location free from rain, splashing water, chemical agents, etc. The equipment should be stored in its original packing material until it is going to be installed. ...
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GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL 2. All input and output connections are made through the knock outs located in the top of rear cover and both side panels. Remove the rear cover to commence wiring. Cut the rear cover with a diagonal cutter on the indicate line. 3.4.2 Installing the MBS unit 1. The MBS unit is also supplied as standard with the 19‐inch rack‐mount brackets fitted. For 23‐inch rack mounting, these need to be exchange with the proper mounting brackets. Place the MBS unit in the equipment rack horizontally immediately above the controller/interface/STS shelf and align the holes of mounting brackets with those of the rack. Secure the shelf in position with four of the supplied crosshead pan type nickel screws as shown below. ...
GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL Wiring Before selecting the wiring, consider the following factors: Current carrying capacity of the wire Maximum wire length needed Maximum ambient temperature IMPORTANT: Use the following table as a guide only. Ensure that the installation complies with the specific wiring regualtions applicable to your country or area of jurisdiction. ...
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GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL 2. Connect CN6 (STS PCB) to CN12 (Controller PCB) for controller DC power supply; Connect CN7 (STS PCB) to CN9 (Inverter shelf PCB) for STS DC power supply; Connect CN3 (Controller PCB) to CN8 (Inverter PCB) for CAN communications. 3. Connect the AC BUS bar of Controller/Interface/STS shelf to the AC BUS connector of the topmost inverter shelf. 4. Connect the DC input wires according to the instructions given in the main SABRE inverter system manual. 5. Connect AC output/input/Ground Wires CAUTION: To connect AC output wires onto the system, only one AC line and AC Neutral are necessary to be connected either from the STS shelf or the Inverter shelf. Knock out the hole for cable on STS shelf and insert a cable protection grommet as shown. Connect AC Live to the (AC‐L OUT) connector and AC Neutral to the (AC‐N) connector on the controller/interface/STS shelf. Refit the rear cover and then wire the Ground cable to the rear cover. ...
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GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL 3.5.2 Wiring the controller/interface/STS shelf to the MBS unit 1. Connect the Signal Cable between the MBS unit and the controller/interface STS shelf Connect the 4 pin MBS cable to connector CN1 on the PCB of the controller/interface/STS shelf. Then connect one end of STS/Inverter signal cable to connector CN11 on the backplane PCB of the controller/interface/STS shelf and connect the other end to connector CN7 on the backplane PCB of the inverter shelf. 2. ...
GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL STS Module Installation To install the STS module, slide it into a pre‐wired chassis until the face plate is flush with the mounting ears. In order to prevent the STS module displaced, turn the lock bolt left to the lock position. At power on, the STS unit enters into a self‐diagnostic mode. If everything is functioning correctly, the indicator will remain solid green, and the STS will detect and transfer the better quality power to the load. ...
GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL Installation Check Before turning the system on, review Chapter 2 for instructions pertaining to your particular system. If the system fails to operate properly after turning on, recheck and verify to make sure all connections correct according to the installation instructions. Operation problems are usually caused by incorrect installation or setup. 1. ...
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GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL The STS Module will continuously detect the position of the MBS in order to decide the transfer action between the different modes. When the STS is powered on it will interrogate whether the position of the MBS is valid. If the status is invalid it will assume the MBS is not correctly connected and will remain in a standby mode with the red LED blinking at 5Hz; at the same time an “MBS abnormal” alarm will be sent to the controller. This condition will only be cleared when the STS detects a valid condition. If the MBS is changed when the STS is operating with one of the five valid conditions, and this change happens ...
GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL 4. Maintenance and Troubleshooting Preventative Maintenance The following preventive maintenance routines should be considered as a minimum requirement. The installation and site may require additional preventive maintenance to ensure optimal performance from the system. These routines should be performed twice a year (more often if required). The technician or electrician performing preventive maintenance on the system must read and understand thoroughly this manual and be familiar with the indicators, controls, and operation of the system. Troubleshooting Guide If the system fails to operate properly and the installation, setup, and operation have been checked, use the following table to determine the probable cause and obtain suggestions on how to proceed. Refer to the LED display status. Error Condition Possible Cause Recommendation ...
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GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL Turn MBS to mains or inverter AC output is normal, green LED is on, The relay on utility power side is bypass mode, replace the STS yellow LED flashing twice per second broken and cannot close module Turn MBS to mains or inverter AC output is normal, green LED is on, Fan fails bypass mode, replace the STS red LED flashing once per second Fan This will not influence the STS AC output is normal, green LED is on, EEprom FAULT AC output. The alert will go off red LED flashing once per second EEprom can’t write or read data automatically after 10s AC output is normal, green LED is on, Check the connection of CAN CAN communication error red LED flashing once per second signal cables AC output is normal, green LED is on, Turn MBS to mains or inverter SCR short fault red LED flashing twice per second bypass mode, replace the STS AC output is normal, green LED is on, ...
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GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL STS LED Display STS operation mode Indicator Alarm Indicator Load Indicator Alarm led display status STS Module Yellow and Red LED status Priority Yellow LED LED Signal Status Solid Mains or Inverter abnormal Blink(Fast) Back‐feed relay open Blink STS Output abnormal (Fastest) Priority Red LED LED Signal Status Blink(Slow) Fan lock or Can communication fail or ...
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GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL STS operation mode display status MBS position LED Display Status Mains Bypass (MBP) AC Mains exists but is unacceptable. Inverter output is unacceptable. AC Mains exists but is unacceptable. Inverter output is acceptable. AC Mains is off. Inverter output is unacceptable. AC Mains is off. Inverter output is acceptable. AC Mains is acceptable. Inverter output is unacceptable. AC Mains is acceptable. Inverter output is acceptable. Inverter Maintenance (MSS) ...
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GRAVITAS SABRE SERIES 100A STS & MBS INSTALLATION & OPERATING MANUAL Normal Operation (NORM) AC Mains is unacceptable. Inverter output is unacceptable. AC Mains is unacceptable. Inverter output is acceptable. AC Mains is acceptable. Inverter output is unacceptable. Priority: Off‐line AC Mains is acceptable. Inverter output is acceptable. Priority: On‐line AC Mains is acceptable. Inverter output is acceptable. Mains Maintenance (ISS) AC Mains is unacceptable. Inverter output is unacceptable. AC Mains is unacceptable. Inverter output is acceptable. AC Mains is acceptable. ...
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AC Mains is unacceptable. Inverter output exists but unacceptable. AC Mains is acceptable. Inverter output exists but unacceptable. AC Mains is unacceptable. Inverter output is acceptable. AC Mains is acceptable. Inverter output is acceptable. In the event that you are unable to rectify the fault using the above guide please contact technical support for assistance: Tel: US ‐ +1 954 346 2442 or UK ‐ +44 1903 768200 Email: Sales‐NorthAmerica@unipowerco.com or Sales‐Europe@unipowerco.com. This document is believed to be correct at time of publication and Unipower LLC accepts no responsibility for consequences from printing errors or inaccuracies. All specifications subject to change without notice. Manual No. SABRE STS100‐1 Page 30 10/12 sabre_sts100-man...