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ISOLGUARD HIG93, HIG93/L, HIG94 

 

  V5.8/23 

HAKEL spol. s r.o. Hradec Králové                     

www.hakel.com

                                                               

Page 10 / 15 

Menu set R

hyst

 

 

New value of the critical insulation resistance hysteresis is set in % by pressing or holding the 

+

 or 

-

 push-buttons. The setting 

range of this value is 0 to 100 % 

R

crit

. New value is saved by long holding the 

ESC/SET

, pressing this push-button shortly 

ends  setting  procedure  and  the 

R

hyst

  value  remains  unchanged.  The  hysteresis  level  in  %  applies  to  both  of  the  critical 

insulation resistance levels 

R

crit1

 and 

R

crit2

Menu set t

ON 

time 

New value of the delay in response of 

FAULT1

 or 

FAULT2

 is set in seconds by pressing or holding the 

+

 or 

 push-buttons. 

The value can be set in the range of 0 to 60 sec. New value is saved by long holding the 

ESC/SET

, pressing this button shortly 

ends setting procedure and 

t

ON

 value remains unchanged. 

Menu set TL

ext.

 

External inductor connected in front of the HIG93, HIG93/L, HIG94 device is necessary when monitoring higher voltages, see 
recommended connection diagrams. Value of 

R

tl.ext

 DC resistance of the connected inductor winding is set in this menu. This 

value must be set zero in case of application without the external inductor. 
New value of the 

R

tl.ext

 resistance is set in kΩ to one decimal place by pressing or holding the 

+

 or 

 push-buttons. The value 

can be set in the range of 0 to 20,0 kΩ. New value is saved by long holding the 

ESC/SET

, pressing this button shortly ends 

setting procedure and 

Rtl.ext

 value remains unchanged. 

The value of 

R

tl.ext

 inductor’s DC resistance winding is indicated on the inductor’s label as 

R

in

. Typical values for three-phase 

HAKEL inductors are as follows: TL400 4,5 kΩ, TL500 4,5 kΩ, TL600 4,5 kΩ, TL1600 12,5 kΩ, TL6003 19,6 kΩ. Exact values 
may be obtained by measuring the inductor’s winding resistance with interconnected L outlets at the operational temperature 
of the inductor. 

Menu set t

TEST 

time 

New value of the delay in module test start by pressing remote test push-button is set in seconds by pressing or holding the 

+

 

or 

 push-buttons. The value can be set in the range of 0 to 6 seconds at 0,1 second step. New value is saved by long holding 

the 

ESC/SET

, pressing this button shortly ends setting procedure and 

t

TEST

 value remains unchanged.  

When 

t

TEST

 value setting is greater than 0 the display is re-activated immediately after pressing the remote test button. 

Menu Mem.FAULT  

Menu for setting the 

FAULT1/FAULT2

 memory. This parameter can be set to 

YES

, when the

 FAULT1

/

FAULT2

 relay remains 

in alarm signalling status even after the fault is eliminated and the button on the device must be pressed to release the relay. 
Parameter can be also set to 

NO

 without fault memorizing. An order through the RS485 communication line can also release 

the relay. 

Menu Set Relay FA 

FAULT1

 and 

FAULT2 

relay status when insulation status fault occurs is set in this menu. This parameter can be set to 

N/C

 or 

N/O

 value. The meaning is given in the terminals’ description, page 5.  

Menu Lock Up

 

Menu is intended for locking the device's control push-buttons. When selecting this menu, button combination for unlocking 
the module is displayed while holding down the push-button. Measured 

R

isol

 value and lock symbol are displayed after exiting 

the menu. The module is unlocked while holding the middle and right push-button at the same time for more than 5 sec. 

Summary of Contents for ISOLGUARD HIG93

Page 1: ...LGUARD HIG93 HIG93 L HIG94 V5 8 23 HAKEL spol s r o Hradec Kr lov www hakel com Page 1 15 Insulation monitoring device ISOLGUARD HIG93 HIG93 L HIG94 Operating instructions Document s name DOK 70915 V5...

Page 2: ...ion 5 Picture 2 Connection of HIG93 94 device 7 Picture 3 Connection of HIG93 94 device 7 Picture 4 Displayed information 8 Picture 5 Insulation resistance fault evaluation 11 Picture 6 Insulation sta...

Page 3: ...1 1 Variants of devices ISOLGUARD HIG93 HIG93 L HIG94 Type Display Menu Signalling relay 1 Signalling relay 2 Range of displayed value Critical insulation resistance Communication bus bar MDS D connec...

Page 4: ...c Outputs Two signalling relays with switching contact electric strength to the internal circuits electric strength to the supply circuits 250 V AC 1 A 3750 Vrms 3750 Vrms Communication line RS485 typ...

Page 5: ...u is shown on the display When the insulation resistance Risol is viewed it activates the parameter setting menu Within the parameters setting menu the prolonged pressing of this push button terminate...

Page 6: ...connections of the insulation monitoring Device Terminals A B SH These terminals are intended for connection of galvanic isolated communication line ISOLGUARD RS485 Individual insulation monitoring de...

Page 7: ...FAULT2 FAULT1 S1 S2 S3 SH B A FAULT2 FAULT1 MENU 1 2 3 4 5 6 PE L1 L1 L2 PE L2 L3 N L3 TL400 L1 L2 L3 CENTRE Rtl ext TEST ALARM 2 ALARM 1 RS485 ISOLGUARD PE 4 Recommended connection of HIG93 HIG93 L...

Page 8: ...C SET Relay Logic ESC SET N C FAULT ESC SET Picture 4 Displayed information 5 Information on the display Operating principles The meaning of the push buttons in each menu is shown on the display Press...

Page 9: ...ation line is performed immediately after receiving the order and takes 5 seconds If the FAULT memory is set Mem FAULT menu the signal relay remains in a status of alarm indication even after the test...

Page 10: ...label as Rin Typical values for three phase HAKEL inductors are as follows TL400 4 5 k TL500 4 5 k TL600 4 5 k TL1600 12 5 k TL6003 19 6 k Exact values may be obtained by measuring the inductor s wind...

Page 11: ...LT2 is only terminated when the insulation resistance increases above the value Rcrit1 Rhyst or Rcrit2 Rhyst Signalling relay is released and FAULT1 FAULT2 signalling is terminated The following left...

Page 12: ...assigned by the MASTER station In practice the communication proceeds in such a way that the MASTER station sends requests subsequently to all connected units and the SLAVE stations response The acces...

Page 13: ...nt data determining the status of this measurement e g fault occurrence Parameter data are extended of priority character determining the importance of the set parameter This character divides paramet...

Page 14: ...20 20 20 Delay in response of signalling the fault Set tON tON 0 sec 0 sec 0 sec External inductor resistance Set TLext Rtl ext 0 k 0 k 0 k Delay in device test start by remote test button Set tTEST t...

Page 15: ...and service It is necessary to follow specified conditions for reliable operation do not expose the device to rough handling keep it clean and ensure maximum admissible temperature of the environment...

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