DOLD VARIMETER IMD RN 5897/240 Translation Of The Original Instructions - Page 3
Browse online or download pdf Translation Of The Original Instructions for Industrial Equipment DOLD VARIMETER IMD RN 5897/240. DOLD VARIMETER IMD RN 5897/240 8 pages. Insulation monitor, coupling devices rl 5898 rp 5898
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Function
Programming/setting of parameters/set-up of the insulation monitor
All settings are made via 3 rotational switches on the front of the device.
To avoid unauthorised manipulation of the settings, the unit has a sealable
transparent cover on the front.
The response value for Alarm is adjusted by the first rotary switch "R
The second rotary switch "Rel." is used to alter the relay function. If set to
"n.c." the output is de-energised on trip, If set to "n.o." the output is energised
on trip. In addition this rotary switch has 2 sections. If the setting is in the
section, the broken wire detection in the measuring circuit is activated, if the
setting is on the second section, the broken wire detection in the measuring
circuit is de-activated.
The third rotational switch selects "UN" selects the voltage system connection
and manual or auto reset it has also 2 sections. In section one the unit is
on auto reset, in section 2 it is on manual reset. Changes of the setting the
unit accepts immediately without restart.
If the second or third rotary switch is in an undefined position, the unit
changes to "parameter failure" (see description under "behaviour at
parameter failures").
Function Diagram
U H
R
E
Earth fault
R
A
Hysteresis function
11-14
Open circuit operation
11-12
11-14
De-energized on trip
11-12
Manual reset
Reset
11-14
Open circuit operation
11-12
11-14
De-energized on trip
11-12
Semiconductor Output (PWM output)
0
5ms
minimum pulse length 5ms (corresponds to 5k )
0
1000ms
pulse length 1000ms (
corresponds to
1M )
pulse break
min. 1s
0
2000ms
maximum pulse legth 2000ms (
corresponds to
Broken wire detection:
Short circuit detection:
3000ms
3000ms
3000ms
2M )
M12318
If the PWM-signal is continuously high,
a broken wire is detected.
If the PWM-signal is continuously low, the
semiconductor may have a short circuit.
Flashing Codes Status LED
measuring function
disabled
self test
".
A
extended
test
internal
system error
connection failure
measuring ciruit L(+)/L(-)
connection failure
protective conductor PE1/PE2
Parameterization
error
Circuit Diagram
VSG1
t
U H
t
X1 X2
11 12 14 21 22 24
Connection Terminals
Terminal designation
A1(+), A2
L(+), L(-), VSG1, VSG2
PE1, PE2
X1, X2
M12292
Y1(+), Y2
11, 12, 13
21, 22, 23
3
L(+)
L(-)
A1(+)
VSG2
A2
Y1
(+) Y2
L(+) L(-)
11
21
PE1
PE2
12
14
22
24
PE1
PE2
M12297_a
Signal description
Auxiliarx voltage AC or DC
Connection for coupling device
Connection for protective conductor
Control input
(combined external Test- and Reset-input
with additional Stop of the measuring
function)
Semiconductor output (Open Collector) with
PWM-signal to indicate the actual insulation
resistance
Alarm signal relay K1(1 changeover contact)
Device fault indicator relay K2
(1 changeover contact)
t
M12295
17.03.21 en / 371A