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GHIELMETTI AG –  7UW50 -  Technische Dokumentation 

ROR/09.02.2021 

Page 4 of 19 

4.2

 

Safety Earth Ground 

This is a Safety Class 1 product (a protective earth terminal GND is provided). An uninterrupted 

safety earth ground must be provided from the main power source to the product input wiring 
terminals, power, cord, or supplied power cord set. Whenever it is likely that the protection has 
been  impaired,  the  product  must  be  made  inoperative  and  secured  against  any  unintended 
operation. 

 

5

 

Installation 

5.1

 

Initial Inspection 

Check  the  contents  of  the  shipment  for  completeness  and  possible  transport  damage.  If  the 
contents are incomplete or damaged, contact GHIELMETTI immediately to get the concerned parts 
repaired or replaced. 

5.2

 

Before Applying Power 

Verify that the product is configured to match the available main power source per the input power 
configuration instructions provided in this manual. 

5.3

 

Servicing 

Servicing,  adjustments,  maintenance  or  repair  of  this  product  may  be  performed  by  qualified 
personnel only. 

 

6

 

Disclaimer 

This instruction manual does not purport to cover all details in equipment, nor to provide for every 
possible contingency to be met in connection with installation, operation or maintenance. Should 
further information be desired or should particular problems arise which are not covered sufficiently 
for the purchaser's purpose, the matter should be referred to the local GHIELMETTI sales office. 

The contents of this instruction manual shall not be-come part nor modify any prior or existing 
agree-ment,  commitment  or  relationship.  The  sales  contract  contains  the  entire  obligations  of 
GHIELMETTI. The warranty contained in the contract between the parties is the sole warranty of 
GHIELMETTI. Any statements contained herein do not create new warranties nor modify the existing 
warranty. 

 

7

 

Functional description 

The tripping matrix GKV 7UW50 is a component of a generator protection system. The tripping 
matrix provides a transparent, easily programmable facility for combining output commands of the 

Summary of Contents for 674.114.913.02

Page 1: ...Tripping matrix for Generator Protection Systems GKV 2x11x14 621 SSK 7UW50 250 VDC Part No 674 114 913 02 Manual Edition 04 2020...

Page 2: ...ecting the Tripping Matrix 8 11 1Auxiliary output screw mount connectors 9 12 Installation instruction 10 12 1Unpacking and repacking 10 12 2Preparations 10 12 2 1Mounting and connections 10 12 2 2Che...

Page 3: ...formance at the factory according to the specifications given for the system in this manual However before putting the device into operation we kindly ask you to read this manual and act according to...

Page 4: ...rvicing adjustments maintenance or repair of this product may be performed by qualified personnel only 6 Disclaimer This instruction manual does not purport to cover all details in equipment nor to pr...

Page 5: ...le are used for programming the matrix the reliability being attained by generous over rating with respect to forward current and reverse voltage The diode plugs are inserted from the front and enable...

Page 6: ...GHIELMETTI AG 7UW50 Technische Dokumentation ROR 09 02 2021 Page 6 of 19 9 Block Diagram...

Page 7: ...GHIELMETTI AG 7UW50 Technische Dokumentation ROR 09 02 2021 Page 7 of 19 10 Control elements of the Tripping Matrix 10 1 Connecting and Diode plugs...

Page 8: ...GHIELMETTI AG 7UW50 Technische Dokumentation ROR 09 02 2021 Page 8 of 19 11 Interconnecting the Tripping Matrix...

Page 9: ...GHIELMETTI AG 7UW50 Technische Dokumentation ROR 09 02 2021 Page 9 of 19 11 1 Auxiliary output screw mount connectors...

Page 10: ...the relay shall be situated in the operating area for at least two hours in order to ensure temperature equalization and to avoid humidity influences and condensation 12 2 Preparations The operating c...

Page 11: ...t most 0 5s The unit faulty alarm contact of the auxiliary supply circuit must disappear after at most 1s the current consumption data given in the Specifications Open the circuit breaker for the DC p...

Page 12: ...with the operation of thw protected object as well as the rules and regulations switching earthing etc In order to test the tripping circuits a control command must be given from a protection or super...

Page 13: ...of 19 During pushing the RESET button the LEDs on the front will light up thus a LED test is performed at the same time The green LED 15V on the front must be on All terminal screws even those not in...

Page 14: ...GHIELMETTI AG 7UW50 Technische Dokumentation ROR 09 02 2021 Page 14 of 19 14 Dimensions 14 1 Front view...

Page 15: ...GHIELMETTI AG 7UW50 Technische Dokumentation ROR 09 02 2021 Page 15 of 19 14 2 Back view...

Page 16: ...GHIELMETTI AG 7UW50 Technische Dokumentation ROR 09 02 2021 Page 16 of 19 14 3 Side view...

Page 17: ...ity make break 20 VA Switching voltage 250 VAC DC Permission current 0 1 A 250 VDC Matrix Number of columns inputs 2x14 Number of input indication LED 28 Number of rows outputs 10 Number of output ind...

Page 18: ...ousing cover Warning Hazardous voltages can be present in the device even after disconnection of the supply voltage or after removal of the module from the housing storage capacitors Caution Electrost...

Page 19: ...9 SWITZERLAND GHIELMETTI AG Head Office Switzerland 41 32 671 13 13 Phone 41 32 671 13 14 Fax info ghielmetti ch www ghielmetti ch GERMANY GHIELMETTI AG Office Germany 49 3371 402 754 Phone 49 3371 61...

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