)NSTALLATION INSTRUCTIONS
3*
6
# ' #
-OUNTING AND CONNECTIONS
-ODEL 3*
J J
"
JJJ
FOR PANEL SUR
FACE MOUNTING
3ECURE THE UNIT WITH FOUR SCREWS TO THE PANEL 2E
FER TO &IGURE FOR DIMENSIONS
#ONNECT EARTHING TERMINAL 4ERMINAL OF THE UNIT
TO THE PROTECTIVE EARTH OF THE PANEL
-AKE A SOLID LOW OHMIC AND LOW INDUCTIVE OP
ERATIONAL EARTH CONNECTION BETWEEN THE EARTHING
SURFACE AT THE SIDE OF THE UNIT USING AT LEAST ONE
STANDARD SCREW - AND THE EARTHING CONTINUITY
SYSTEM OF THE PANEL RECOMMENDED GROUNDING
STRAP $). FORM ! EG /RDER .O OF
-ESSRS $RUSEIDT 2EMSCHEID 'ERMANY
-AKE CONNECTIONS VIA SCREWED TERMINALS
-ODEL 3*
J J
%
JJJ
FOR PANEL FLUSH
MOUNTING OR FOR CUBICLE INSTALLATION
,IFT UP BOTH LABELLING STRIPS ON THE LID OF THE UNIT
AND REMOVE COVER TO GAIN ACCESS TO FOUR HOLES FOR
THE FIXING SCREWS
)NSERT THE UNIT INTO THE PANEL CUT OUT AND SECURE IT
WITH THE FIXING SCREWS &OR DIMENSIONS REFER TO &IG
URE
#ONNECT EARTHING SCREW ON THE REAR OF THE UNIT TO
THE PROTECTIVE EARTH OF THE PANEL OR CUBICLE
-AKE A SOLID LOW OHMIC AND LOW INDUCTIVE OP
ERATIONAL EARTH CONNECTION BETWEEN THE EARTHING
SURFACE AT THE REAR OF THE UNIT USING AT LEAST ONE
STANDARD SCREW - AND THE EARTHING CONTINUITY
SYSTEM OF THE PANEL OR CUBICLE RECOMMENDED
GROUNDING STRAP $). FORM ! EG /RDER
.O OF -ESSRS $RUSEIDT 2EMSCHEID 'ER
MANY
-AKE CONNECTIONS VIA THE SCREWED OR SNAP IN
TERMINALS OF THE SOCKETS OF THE HOUSING /BSERVE
LABELLING OF THE INDIVIDUAL CONNECTOR MODULES TO
ENSURE CORRECT LOCATION OBSERVE THE MAX PERMIS
SIBLE CONDUCTOR CROSS SECTIONS 4HE USE OF THE
SCREWED TERMINALS IS RECOMMENDED SNAP IN
CONNECTION REQUIRES SPECIAL TOOLS AND MUST NOT BE
USED FOR FIELD WIRING UNLESS PROPER STRAIN RELIEF AND
AND THE PERMISSIBLE BENDING RADIUS ARE OB
SERVED
4HE SCREW TYPE TERMINALS CAN BE USED
WITHOUT
WIRE END FERRULES 0IN END CONNECTORS GENERALLY
MUST NOT BE USED #ARE HAS TO BE TAKEN FOR A SUFFI
CIENTLY LONG BARE WIRE APPROX MM INCH
AT LEAST MM INCH
#HECKING THE RATED DATA AND THE
MODULES
2ATED DATA OF THE UNIT
4HE RATED DATA OF THE UNIT MUST BE CHECKED AGAINST
THE PLANT DATA 4HIS APPLIES IN PARTICULAR TO THE AUXIL
IARY VOLTAGE AND THE RATED CURRENT OF THE CURRENT
TRANSFORMERS
!LLOCATION OF THE MODULES
! REDUCED AND SIMPLIFIED FRONT VIEW OF THE DEVICE IS
SHOWN IN &IGURE WHEN THE FRONT DOOR IS OPENED
4HE MODULES ARE DESIGNATED WITH NUMBERS
TO
4HESE NUMBERS ARE USED FOR IDENTIFICATION OF THE INDI
VIDUAL MODULES IN THE FOLLOWING SECTIONS
#ONTROL DC VOLTAGE OF BINARY INPUTS
7HEN DELIVERED FROM THE FACTORY THE BINARY INPUTS
ARE DESIGNED TO OPERATE IN THE TOTAL CONTROL VOLTAGE
RANGE FROM 6 TO 6 )F THE RATED CONTROL VOLTAGE
FOR THE BINARY INPUTS IS 6 OR HIGHER IT IS ADVISABLE
TO FIT A HIGHER PICK UP THRESHOLD TO THESE INPUTS TO
INCREASE STABILITY AGAINST STRAY VOLTAGES IN THE DC
CIRCUITS
&OR RATED CONTROL VOLTAGES OF 6DC OR HIGHER THE
PICK UP THRESHOLD CAN BE INCREASED TO APPROXI
MATELY 6 FOR RATED CONTROL VOLTAGES OF 6 OR
HIGHER TO APPROXIMATELY 6 )N ORDER TO FIT A HIGHER
PICK UP THRESHOLD SOLDER BRIDGES MUST BE RE
MOVED &IGURE SHOWS THE LOCATION OF THESE SOL
DER BRIDGES AND THEIR ASSIGNMENT FOR THE BASIC PCB
&IGURE FOR THE ADDITIONAL PCB
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