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計測機器 DOLD VARIMETER IMD RN 5897/011のPDF マニュアルをオンラインで閲覧またはダウンロードできます。DOLD VARIMETER IMD RN 5897/011 17 ページ。 Insulation monitor

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Function

Behaviour with internal device faults

If internal device faults were detected during the test function, the display

backlight changes into red and an error messages (failure code: „Int.1")

is indicated. The indicator relays K1 and K2 switch to the alarm state.

The device faults are also indicated via Modbus.

Behavior on faulty connection

When detecting broken wire on terminals L(+)/L(-), the measurement is

disabled. The reaction time could be up to 2 min. The monitoring relays

K1 and K2 go in alarm state, the backlight changes to red. The display

shows the fault message „L+/L-". After removing the interruption the fault is

automatically reset (max. reaction time up to 2 min) and the measurement

of the insulation resistance is continued.

Stored alarm values remain stored. An interruption of the protective

earth connections PE1/PE2 causes the same reaction as interrupting the

measuring circuit, only the display shows „PE1-PE2".

Broken wire detection on terminals L(+)/L(-) and PE1/PE2 are also indicated

via Modbus.

External control input

To terminals X1/X2 an external combined Test-/Reset button can be con-

nected. If the terminals X1/X2 are bridged for approx. 1 s the test mode is

started. This has the same function as pressing the internal test button or

sending the coreresponding Modbus command. When bridging X1/X2 for

> 3 s, a stored alarm will be reset. This has the same function as pressing

the internal reset button.

Connection of an external coupling device

An external coupling device RL 5898 oder RP 5898 can be connected

to extend the input voltage range of the monitored voltage system on

RN 5897/011. The terminals with the same legend of the insulation monitor

and the coupling device (VSG1, VSG2, L(+), L(-)) are connected together.

The network to be monitored is connected to terminals L1(+) und L2(-)

on the coupling device. Using the display menu in programming mode or

programming via Modbus the connection of the coupling device has to be

selected and activated. The broken wire detection is active on the terminals

L1(+)/L2(-) on the coupling device. A broken wire between coupling device

and insulation monitor cannot be detected immediately but the measured

values on interruption of 1 or 2 wires between coupling device and insulation

monitor are much lower as the real values, which will cause an early

response of the device.

Programming/setting of parameters/set-up of the insulation monitor

(local directly on the the unit)

The response values for alarm and pre-alarm can be adjusted via 2

rotary switches „R

" and „R

" on the front of the device. New setting are

immediately active and do not require a restart of the unit. More settings

can be done with the 3 buttons and the display menu in programming

mode. To start the programming mode, the button „Set/ESC" has to be

pressed for approx. 2 s. To avoid unauthorized manipulation, this button

as well as the rotary switches „R

transparent cover. When the device changes to programming mode, the

measurement is stopped, the display back light changes to orange color

and the first parameter is displayed. To scroll the different parameters, the

button „Set/ESC" has to be pressed short.The programming mode is also

indicated via Modbus. To scroll the different parameters, the button „Set/

ESC" has to be pressed short. With the 2 scroll buttons (Scroll-Up „

Scroll-Down „

") the settings can be modified.



The first parameter is the broken wire detection in the measuring circuit

„BrWiD". Possible setting are continuously on („on"), continuously off („oFF")

or only active during self-test. The default is „on".

The second parameter is alarm memory „Mem.". Here are 2 options avai-

lable manual reset („on") und auto reset („oFF"). The default value is „oFF".

The third parameter is the relay operation principle „Rel." Settings are:

de-energized on trip („n.c.") and energized on trip („n.o."). The default

value is „n.c.".

The fourth parameter is the type of network connection „Net". Selection

are AC Network(„Ac"),DC-Network („dc") or 3NAC-Network („3nAc"). The

default value is „Ac".

The fifth parameter ist the setting oft the maximum leakage capacity

(„CE[µF]"). This can be adjusted to 30 µF („30"), 100 µF („100"), 300 µF

(„300") and 1000 µF („1000"). The default value is „30".

The device allow the connection of a coupling device, the sixth parameter

activates („on") or de-activates („oFF") the coupling device. Standard

adjustment is de-activates („oFF").

" and „R

" are located behind a sealable

Function

The seventh parameter is the setting of the Modbus Baudrate ("kBaud").

Possible setting values are:

Baudrate

1.2

kBaud

Default setting is 1,2 kBaud

The eighth parameter is the Modbus adress, which can be set between

1 and 99. Default setting is adress 1. To exit the programming mode, the

"Set/ESC" button must be pressed for 2 s. The settings are applied and

saved permanently. After that, the device performs a restart (like Power-On).

Programming/setting of parameters/set-up of the insulation monitor

(via Modbus)

If the device should be parameterized via Modbus, the rotary switches

" and "R

" on the front of the device must be set to "Bus".

Then the parameters and setting values can be send via bus to the device.

These will be directly applied without a restart of the device.

The Modbus baudrate and adress can only be set locally via the display

menu.

Behaviour at parameter failures

If the rotary switches "R

(e. g. position 10 - which is not used), the device goes to parameter failure.

The backlight changes into red, the indicator relays switch to alarm state an

the error message "Param" is indicated. The device fault is also indicated

via Modbus. The rotary switches must be set to a defined position to reset

the failure. The device will also go to parameter failure if only one rotary

switch is set to "Bus".

Both rotary switches must always be set to "Bus".

If setting values and parameters are sent via Modbus to the device while

the rotary switches are not set to "Bus", the device will also go to parameter

failure. In this case the reset is only possible with a reset command via

Modbus.

" and



2.4

4.8

9.6

19.2

38.4

" and "R

are set to an undefinded postionen

57.6

115.2

30.06.23 de / 752A