33 of 124  Construction of Giresun Wastewater Treatment Plant  Tender Dossier Volume 3 Employer’s Requirements  Section 08: Electrical Works  The use of binary, hexagonal code, or any other code is not acceptable and currents and measurements shall be  presented as either exact values or as a percentage of the maximum value. Adjustments shall be made by a digital four push button keypad. No binary coded dipswitches shall be used for  programming or function selection. The HMI shall be possible to lock to prevent unauthorised changes to the programming.  Data should always be presented with as the actual value, and the unit of the data (i.e. V, A or % etc). Data entered and selections made to the Soft starter using the display and keypad shall be stored in case of a  power loss. LED  Indicators  using  long  life  LEDs  shall  provide  additional  quick  annunciation  of;  Green LED marked Run – Flashing when given a start command during ramping and steady when they  reached top of ramp, when feeding the motor with 100% voltage.  Red LED marked Fault  – Steady when the soft starter sees and trips on any faults (13) Metering Metering functions shall be provided through the Numeric Display for indicating the following ;  Maximum  RMS  Output  Current  showing  the  highest  current  of  the  phases. Indicating range to be 0.0 – 9999 amps  Output Voltage  shall be possible to read in terms of % of the rated full voltage, in the rage of 0 – 100%. But  also as an exact value in the range of 0 – 999V.  Power factor  shall be possible to read as a cosØ value. Real time clock:  A real time cock shall be available, in order to see when different events have occurred.  (14)  Serial Communication (15)  Design Specifications  (16)  Power Ratings  (17)  Thyristors (SCR Devices)  PIV Ratings:  (a) 230-600V 1600V Minimum  8_Vol3_d4 3_Section 8 electrical works_en_GIR rev6.doc  Control Supply Voltage (Us):  Wide voltage range, 100-250VAC -15% to +10% for 50/60Hz ± 5%, shall be  standard on each softstarter. Output Capacity : The starting capacity shall allow the use of a class 10 over load relay up to 500% of the rated  current. Output voltage : Reduced voltage two phase AC derived from phase-angle fired inverse-parallel thyristors,  ramped to full voltage.  Rated Supply Voltage (Ue) : 208 to 600V, -15% to +10%, 3 phase 50/60Hz ± 5%  The soft starter shall be controlled completely through solid state design algorithms. The soft starter shall be  controlling the current in three of the three phases, using three anti-parallel Thyristors (SCRs) in each controlled  phase. The soft starters shall be designed to the following specifications:  The soft starter shall have at least 255 different address options, in order to find each individual soft starter in  the communication system. A neutral Serial, RS485, TCP/IP Communications shall be built-in as a standard feature. The product shall be  designed to, benefitting on the flexible design concept.