ISOLGUARD HIG93, HIG93/L, HIG94
V5.8/23
HAKEL spol. s r.o. Hradec Králové
www.hakel.com
Page 9 / 15
5.1
Displayed information HIG93, HIG93/L, HIG94
Opening text
It is displayed for a short time after switching ON the module. The name of the module and software version is displayed. After
the insulation status measuring is started, the measured value of insulation resistance is displayed automatically.
Measured value of insulation resistance
It is displayed in a range as specified in the table of technical characteristics in units of kΩ or MΩ. The value is rounded to
units of kΩ within the adjustable critical insulation resistance range and to tens of kΩ if lying beyond that range.
Pressing
TEST
push-button activates test of the device, pressing
MENU
push-button displays parameter settings menu. By
pressing the middle push-button current temperature inside the module is indicated in the upper part of the display. The
signalling relay's status is indicated by the symbol of contact. If both relays are released (there is no fault in the monitored
power supply system) the open contact is displayed. If there is
R
crit1
or
R
crit2
fault signalled, the close contact is displayed.
In a case the non-zero value for the time t
ON
(time until the fault signalling) is set, then when
R
isol
drops below the
R
crit
value
the countdown of the time t
ON
starts. The display shows the time until fault signalling. After the time is expired, the fault is
signalled.
Insulation monitoring device test
Test may be performed by pressing push-button on the module, by remote
TEST
push-button or by the ISOLGUARD RS485
communication line order.
Testing of the insulation monitoring device is performed for 5 seconds or during the time of holding the button. The insulation
resistance value is set lower than
R
crit1
and
R
crit2
. Invoked alarm is signalled by indicator lamp
FAULT1, FAULT2
and by
FAULT1
and
FAULT2
signalling relays’ status according to
Set Relay FA
parameter. The insulation resistance value is not
shown on the display while testing.
If the push-button on the module is used to initiate the test, then the test starts running immediately.
When using the remote test push-button, the test starts after
t
TEST
parameter delay. When the
t
TEST
value is set greater than
zero the display is recovered immediately after pressing the remote test push-button and test is performed after
t
TEST
parameter
delay.
Remote test via the communication 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 is over, until it
is released by the operator pressing the button on the module. It is also possible to release the relay by an order from the
communication line in the case of remote test via communication line.
The initiation and termination of the device test is indicated by a short display flash.
FAULT
memory
This parameter is set in the menu as
Mem.FAULT
.
If this parameter is set to
YES,
the
FAULT1
,
FAULT2
relay stays in the fault signalling status even after insulation resistance
fault termination and the word
DEBLOCK
appears on the display. It is possible to release the relay by pushing device’s middle
button S2. This push-button can be also used when locked device is indicated by the padlock symbol on the display.
FAULT1
,
FAULT2
relay can be also released by the order from the communication line.
The usage of the
FAULT
memory including
FAULT
signalling status after termination is defined by the user.
Parameter settings Menu
Menu to set one of the following values can be selected by using push-buttons arrow up and down
display of device’s set parameters, menu
Info
.
monitored critical resistance, menu
Set R
crit1,
Set R
crit2
.
insulation resistance hysteresis, menu
Set R
hyst
,
delay in response of signalling the fault, menu
Set t
ON
,
external inductor resistance, menu
Set TL
ext
.
,
delay in start of module test by remote test push-button, menu
Set t
TEST
FAULT
memory parameter, menu
Mem.FAULT
device addresses on the RS485 bus, menu
SET 485ADDR
terminating resistance
R
te
of the RS485 bus in the device, menu
Set 485R
te
FAULT1
and
FAULT2
relay status when insulation status fault, menu
Set Relay FA
device’s control buttons can be locked, menu
Lock Up
For initiating of all menus use the push-button
SEL
and for exit select
ESC
.
Information menu
Displays control program version of HIG93, HIG93/L, HIG94 and set operation parameters of the device. Serial number of the
device is also displayed. For exit select the push-button ESC.
Menu set R
crit1
,
R
crit2
New value of the critical insulation resistance is set in kΩ by pressing or holding the
+
or
–
push-buttons. The value can be set
in the range of 0,1 kΩ to 90 kΩ for HIG93/L, 5 kΩ to 300 kΩ for HIG93 or in the range of 200 kΩ to 900 kΩ for HIG94. New
value is saved by long holding the
ESC/SET
, pressing this push-button shortly ends setting procedure and
R
crit
value remains
unchanged. Both
R
crit1
,
R
crit2
values can be set independently in the whole value range.
