DOLD VARIMETER PRO User manual

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Monitoring Technique
Your Advantage
•Min-, Max. value or window monitoring
•Simultaneous monitoring of up to 9 different parameters
•Simple configuration and fault diagnostic
•Different fault indications
•Large measuring range 3 AC 24 ... 690 V
•Auxiliary voltage ranges DC 24 V, AC 230 V or AC/DC 110 ... 400 V
•Early detection of irregular states
•Space and cost saving
•Reduced wiring
Features
•Multifunction measuring relay acc. to EN 60255-1
•Voltage monitoring (1- and 3-phase)
•Current monitoring
•Frequency monitoring
•Power factor cos phi
•Phase sequence, phase failure, asymmetry
•Effective-, reactive- and apparent power
•Start up delay, on delay
•Adjustable hysteresis 0.2 ... 50 % of response value
•Manual reset
•LCD for indication of the measuring values
•Relay output
MK 9300N: 1 changeover contact
MH 9300: 2 x 1 changeover contacts
•Relay function selectable (energized/de-energized on trip)
•As option with plugable terminal blocks for easy exchange
of devices
- with screw terminals
- or with cage clamp terminals
•MK 9300N: Width 22,5 mm
MH 9300: Width 45 mm
Approvals and Markings
Applications
•Monitoring of single and 3-phase loads
•Emergency power supplies
•Voltage dependent switching at under- or overvoltage
•Voltage monitoring of portable equipment
•Motor protection on Phase failure
•Transformer protection on asymmetric load
•Frequency monitoring on inverter outputs
0268581
More Information
•MK 9300N
The MK9300N has 1 relay output.
Monitoring parameters can be set independently
•MH 9300
The MH 9300 has 2 relay outputs.
Monitoring parameters can be set independently
Each monitoring function can be assigned ro relay 1 and /or relay 2
MH 9300MK 9300N
VARIMETER PRO
Multifunction Measuring Relay
MK 9300N, MH 9300
Function Diagram
t
t
t
tatv
M10624
>I
Hyst
11
14
I
UH
Example: overvoltage monitoring with closed circuit operation
Product description
The universal measuring relays MK 9300N / MH 9300 of the VARIMETER
PRO series monitor up to 9 parameters simultaneously. These are under-,
over-voltage, voltage range, voltage asymmetry, under-, overcurrent, cos phi,
effective-, apparent- and reactive power, frequency and phase sequence,
The measurement in 3-phase or single-phase systemes is very simple and
without extensiv wiring. Because of the menue structure the multifunctional
measuring relays can be used easyly and intuitively.
The early detection of up-coming break downs and preventive maintenance
avoid expensive damages. As user you profit from the reliability and avai-
lability of your plant.
All technical data in this list relate to the state at the moment of edition. We reserve the right for
technical improvements and changes at any time.

211.01.16 en / 627
To provide correct function the measuring voltage on L1/L2 has to be at
least 20 V.
Load monitoring claims a symmetric load on all 3 phases as you have it
usually with motors.The unit can also be used for single phase monitoring
by bridging terminals L2 and L3 (the display then shows Umin = 0).
Overload within the current range is indicated by fast flashing of the LED.
Remarks
The LED indicate the state.
green LED UN: on, when auxiliary voltage present
red LED (flashes) at overload at current path
orange LED: No measurement, unit in input mode
Indication
Cursor LCD Display
Setting
Active manual reset
Manual reset activated: flashes when me-
mory mode is ON and relay in failure state.
Reset with button " "
Contact state of the output relays
Circuit Diagrams
L1/i
kL2 L3
11
A1
+
12
A2
14
M10139
11
12 14
2111
A1
L3
L2
k
2212 24
14
A2
M10140
11
12 14
21
22 24
L1/i
MK 9300N.11 MH 9300.12
Function
After connecting the auxiliary supply to terminals A1-A2 the startup delay
disables the monitoring function so that changes on the input have no
influence on the relay output of the VARIMETER PRO. The device is in
display (RUN) mode and continuously measures the actual values. The
buttons
and toggle between the different values. Pressing
Esc
for
more than 3 sec starts the input mode.
One or more measuring values can be assigned to the relay output. If the
setting value of at least one function is exceeded the relay switches and
the display indicates this state. The display is inverted, flashes and shows
measuring function and fault.
The fault memory is selectable
With button the fault memory can be deleted.
On the unit MH9300 it is possible to assign different values to the different
relays so one can be used as pre-warning and the other as alarm output.
Relay output 1 switches when actual value exceeds the pre-warning setting
of at least one assigned measuring function.
If a second setting assigned to relay output 2 with the same measuring
function the unit gives an Alarm signal.
Connection Terminals
Terminal designation Signal designation
A1 (+), A2 Auxiliary voltage AC or DC
L1/i, L2, L3 Voltage measuring input AC
L1/i , k Current measuring path AC
11, 12, 14 Indicator relay (C/O contact)
21, 22, 24 Indicator relay (C/O contact)
M10933_a
Display
“Rel.2” active
Display
“Rel.1” active
Selection of
Functions/Setting and
measuring value
s
Change to setup mode (3...6s
)
Change to Run mode (3...6s)
LED status indication
Error memory 1 active
Error memory 2 active

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Operating
Further Setting Parameter
Adjustable Parameter
Limit values for Rel.1 and Rel.2
Selectable with buttons .
Factory
setting
Umin:
Response value undervoltage,
Lowest phase to phase voltage
(Undervoltage relay)
OFF
Umax:
Response value overvoltage,
Highest phase to phase voltage L1, L2 or L3
(Overvoltage relay)
440 V
Asym:
Response value voltage asymmetry,
Percentage of highest to lowest phase to
phase voltage
(Asymmetry relay)
20 %
I: Response value current at current path L1
(< under- / > overcurrrent) > 8.00 A
Cos-j:
Response value phase displacement between
current and voltage
(< under- / > overload monitor)
OFF
P:
Response value effective power 3-phase
Independent of phase sequence switches at
adjusted value also at reverse power
(< under- / > overload)
OFF
S: Response value apparent power 3-phase (< / > ) OFF
Q: Response value reactive power (< / >) OFF
f: Response value frequency (range 1 ... 400 Hz)
( < under / > overfrequency) OFF
Hyst: Hysteresis 0.2 ... 50 % of response value 4.0 %
tv: On delay for relays ( 0 ... 10 sec ) 0 s
Phseq: Monitoring phase sequence (ON / OFF) ON
A / R: Seting open- / closed circuit operation R
Sp: Error storage ( ON / OFF ) OFF
Response values can be deactivated. (OFF)
Selectable with buttons .
Factory
setting
ta:Start up delay, when auxiliary voltage connected
( 0.2 ... 10 sec) in steps of 0.1 s 0.2 s
Restore Factory Settings
(Auslieferungszustand wiederherstellen)
Before auxiliary voltage connected press button
Esc
.
During start press and hold.
UP / DOWN
Display (Run) - Mode
After power up the relay is in display (Run) mode.
Scrolls the display to show one of the 10 possible values.
If a values exceeds the setting, the values is indicated flashing on inverted
display. In the case of a fault display the display always returns to the fault
value after pressing . If voltage is missing on the measuring input
some values cannot be calculated and a no value is shown.
Input-Mode
The measurement is interrupted, the relays are in failure state and the
indicator LED has orange color
Selection of parameters and setting of thresholds.
ENTER
Display (Run) - Mode:
Manual reset, when manual reset is selected for output relay
Reset works only when fault is removed
Input-Mode:
- Shifts cursor to the right
- Saves the value no-voltage safe
- Pressing for more than 3 sec: Change to display (Run) mode.
Esc
Esc
Display (Run) - Mode
- Pressing for more than 3 sec: Change to input mode
Input-Mode:
- Shifts cursor to the left
- Leave setting without saving
LCD-Display
Rel.1Rel.2 Sp1Sp2
Rel.1Rel.2 Sp1Sp2
<f
Rel.1Rel.2 Sp1Sp2
>f
Rel.1Rel.2 Sp1Sp2
Umin
Setting of response values
< Fault, when value drops under set point
> Fault, when value exceeds set point
OFF measurement disabled
If the adjusted threshold of at least one measuring function is exceeded,
the corresponding relay output switches after the selected time delay tv
and the fault is indicated on the display.
Manual reset can be activated or de-activated and is operated with
on the unit.
Indicator output
Monitoring parameters can be set independently.
The MK9300N has 1 relay output.
The MH 9300 has 2 relay outputs.
Each monitoring function can be assigned to Relay 1 and/or to Relay 2.The
switching mode energized or de-energized on trip can be set in input mode.

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Operating
Display (RUN) Mode Input-Mode
Display inverted when the actual value is in failure state. Measurement interrupted, relays are in failure state,
indicator LED orange color
Scroll display between the 10 different measuring values. Chose Rel1, Rel2, Taand RUN
As option address for RS485 Bus
Chose parameter
Change and set response values for Rel1 and Rel2.
Reset fault memory:
Esc
Shift cursor to the left
Shift cursor to the right
Esc
For more the 3 sec, change to input mode For more than 3 sec, change to display mode
After connecting the auxiliary supply A1/A2 the unit is in display (Run)
mode:
The display is inverted when a measured value is exceeds the settings.
With button the fault memory is reset.
The actual measured values can be toggled with the buttons.
Pressing button
Esc
for more than 3 sec the unit changes to input mode.
In input mode the measurement is disabled, the relays are in failure mode
and the indicator LED is orange.
With the buttons the different setting values can be chosen.
Move cursor position
One character to the right
Esc
One character to the left
Back to the Display (Run)-Mode
Press button 3 s OK New values stored
or
Press button
Esc
3 s; Break Values unchanged
RUN
on the display confirm with to change to display (Run) mode.
Operating - Display - Menü (RUN) Mode
Ta
Rel2
Rel1
Esc 3s
Esc (Break) 3s Break
(cancel changes)
OK-
(return with new
settings)
(OK) 3s
Ph-Seq
Startup delay
Input-modeDisplay(Run) -
mode
Response value for Rel2
variant MH
RUN
f
Q
S
P
Cos-Phi
I
Asym
Umax
Umin
M10931
Responsevalue for Rel1
IAsymUmax
Cursor-
display relay 2 energized
relay 1 and 2 energized
Cursor flashes during time delay tv
R1
R1
R1
R2
R2
R2
Umin Cos-
actual
value
actual
value
actual
value
actual
value
actual
value
actual
value
actual
value
actual
value
actual
value
PSQf Ph-
[A][%][V][V] Phi [W][VA][var][Hz] feld
M11002
relay 1 energized

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The menu for relay 2 is identically
Operating – Input-menu for relay 1
Umin [V]
Umax [V]
Asym [%] Asym [%]
<I [A]
tv 1
A/R
Phseq
Sp 1
>I [A]
<CosP
<P [W]
<S [W]
<Q [var]
<f [Hz]
<P [W]
<S [W]
<Q [var]
<f [Hz]
>P [W]
>S [W]
>Q [var]
>f [Hz]
Hyst
>P [W]
>S [W]
>Q [var]
>f [Hz]
Hyst
<CosP
>CosP >CosP
>I [A]
<I [A]
Umin [V]
tv 1
A/R
Pheq
Sp 1
Umin [V]
Umax [V]
Umin [V]
tv 1
A/R
Pheq
Sp 1
R1
R1
R1
R1
R2
R2
R2
R2
Esc
Esc
Esc
Esc
Esc
Esc
Esc
Esc
Esc
Esc
actual
value
actual
value
actual
value
actual
value
actual
value
actual
value
actual
value
actual
value
440
10,0
ON
ON
440
440
100
12,00
440
10,0
ON
ON
440
0
0
OFF
OFF
0
0
0
0
0
0
OFF
OFF
0
Esc (Break) 3s
Esc 3s
Break (cancel changes)
OK (store settings)
OK (return with new setting)
(OK) 3s
(OK)
RUN
Display
mode
Rel1
Rel2
Ta
Esc

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Technical Data Technical Data
Auxiliary Voltage A1/A2
Nominal auxiliary voltage UH
MK 9300N: DC 24 V (0.9 ... 1.1 x UH)
MH 9300: AC 230 V, 400 V (0.8 ... 1.1 x UH)
AC/DC 110 ... 400 V (0.8 ... 1.1 x UH)
Nominal frequency: 50 / 60 Hz
Frequency range: 45 ... 400 Hz
Input current
at DC 24 V: 50 mA
at AC 230 V: 15 mA
Voltage Measuring Input L1/L2/L3
MK 9300N:
Nominal voltage: 3 AC 400 V
Measuring range UM: 3 AC 24 ... 400 V
(0,8 ... 1,1 x UM)
MH 9300:
Nominal voltage: 3 AC 400 V / 690 V
Measuring range UM: 3 AC 24 ... 400 V, 24 ... 690 V
(0,8 ... 1,1 x UM)
Nominal frequency: 50 / 60 Hz
Frequency range: 1 ... 400 Hz
Operating - Setting valid for both relays -
Start up delay ta: 0 ... 10 s in steps of 0.1 s
Current Measuring Input i / k
Nominal current: AC 12 A
Measuring range: AC 100 mA ... 12 A
Max. overload
continuously: 16 A
short time < 10 s: max. 25 A
If current range is overloaded, the LED
flashes fast
Nominal frequency: 50 / 60 Hz
Frequency range: 45 ... 400 Hz
Setting Range (absolute, via button and LCD-display)
Measuring accuracy
at nominal frequency
(in % of setting value): ±4 %
Hysteresis
(in % of setting value): 0.2 ... 50 % of response value
Reaction time: < 350 ms (f > 10 Hz)
Adjustable on delay tv:0 ... 10 s (in steps of 0.1 s)
Adjustable start up delay ta:0.2 ... 10 s (in steps of 0.1 s)
Ta [s] Ta [s]
R1
R1
R2
R2
Esc Esc
10,0
0
10,0
0
Esc (Break) 3s Break (Cancel changes)
OK (return wtih new settings)
(OK) 3s
RUN
Display
mode
Ta
M11004_a
Esc

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Technical Data Standard Types
MK 9300N.11/022 3 AC 20 ... 440 V AC 12 A DC 24 V
Article number: 0063630
•Measuring voltage: 3 AC 20 ... 440 V
•Measuring current: AC 12 A
•Auxiliary voltage UH: DC 24 V
•Output: 1 changeover contact
•Width: 22,5 mm
MH 9300.12/022 3 AC 20 ... 440 V AC 12 A AC 230 V
Article number: 0063631
•Measuring voltage: 3 AC 20 ... 440 V
•Measuring current: AC 12 A
•Auxiliary voltage UH: AC 230 V
•Output: 1 changeover contact (Rel1) and
1 changeover contact (Rel2)
•Width: 45 mm
Output Circuit (Rel1: 11/12/14; Rel2: 21/22/24)
Contacts:
MK 9300N: 1 changeover contact
MH 9300: 1 changeover contact (Rel1) and
1 changeover contact (Rel2)
Thermal current I th:2 x 4 A
Switching capacity
to AC 15:
NO contacts: 3 A / AC 230 V IEC/EN 60 947-5-1
NC contacts: 1 A / AC 230 V IEC/EN 60 947-5-1
to DC 13
NO contacts: 1 A / DC 24 V IEC/EN 60 947-5-1
NC contacts: 1 A / DC 24 V IEC/EN 60 947-5-1
Electrical life
to AC 15 at 3 A, AC 230 V: 2 x 105switch. cycl. IEC/EN 60 947-5-1
Permissible switching
frequency: 1800 / h
short circuit strength
Max. fuse rating: 4 A gl DIN VDE 0660
Mechanical life: 30 x 106switching cycles
General Data
Nominal operating mode: continuous operation
Temperature range: - 20... + 60°C
(at range 0 ... - 20°C limited
function of the LCD display)
Clearance and creepage distance
rated impulse voltage /
pollution degree: 4 kV / 2
high voltage test: IEC/EN 60 664-1
EMC
Electrostatic discharge (ESD): 8 kV (air) IEC/EN 61 000-4-2
Fast transients: 2 kV IEC/EN 61 000-4-4
Surge voltage: 5 kV / 0.5J IEC/EN 61 000-4-5
HF-wire guided: 10 V IEC/EN 61 000-4-6
Interference suppression: Limit value class A EN 61 000-6-4
Degree of protection
Housing: IP 40 DIN EN 60 529
Terminals: IP 20 DIN EN 60 529
Housing: thermoplastic with VO behaviour
according to UL Subject 94
Vibration resistance: Amplitude 0.35 mm,
frequency 10 ... 55 Hz
Climate resistance: 20 / 060 / 04 EN 60 068-1
Wire connection DIN 46 228-1/-2/-3/-4
Screw terminal
(fixed): 1 x 4 mm2solid or
1 x 2.5 mm2stranded ferruled (isolated) or
2 x 1.5 mm2stranded ferruled (isolated) or
2 x 2.5 mm2solid
Insulation of wires or
sleeve length: 8 mm
Terminal block
with screw terminals
Max. cross section: 1 x 2.5 mm2 solid or
1 x 2.5 mm2stranded ferruled (isolated)
Insulation of wires or
sleeve length: 8 mm
Terminal block
with cage clamp terminals
Max. cross section: 1 x 4 mm2solid or
1 x 2.5 mm2stranded ferruled (isolated)
Min. cross section: 0.5 mm2
Insulation of wires or
sleeve length: 12 +0.5 mm
Wire fixing: Plus-minus terminal screws M3,5 box
terminals with wire protection
or cage clamp terminals
Mounting: DIN rail EN 60 715
Weight:
MK 9300N: approx. 140 g
MH 9300: approx. 250 g
Dimensions
Width x height x depth:
MK 9300N: 22.5 x 90 x 97 mm
MH 9300: 45 x 90 x 97 mm
Ordering Example
MK 9300N .11 _ _ /022 3 AC 20 ... 440 V AC 12 A DC 24 V
Auxiliary voltage UH
Measuring current UM
Measuring voltage
Type of terminals
without indication:
terminal blocks fixed
with screw terminals
PC (plug in cage clamp):
pluggable terminalblocks
withcageclampterminals
PS (plug in screw):
pluggableterminalblocks
with screw terminals
Contacts
Type
Notes
Removing the terminal blocks with cage clamp terminals
1. The unit has to be disconnected.
2. Insert a screwdriver in the side recess of the front plate.
3. Turn the screwdriver to the right and left.
4. Please note that the terminal blocks have to be mounted on the
belonging plug in terminations.
Options with Pluggable Terminal Blocks
Screw terminal
(PS/plugin screw)
Cage clamp terminal
(PC/plugin cage clamp)

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Connection Example
M10940
L1
L3
L
N
L2
11 12
U< P>
14 21 22 24
MH9300.12
kL1/i L2 L3 A1 A2
+24V IN1 IN2
PLC input
Set Up Procedure
The connection has to be made according to the connection examples. To
connect the current of L1 the Terminals I and k are available. If the current
to be measured exceeds the maximum continuous current of the input and
external current transformer has to be used. If current is not measured
input k remains unconnected.
Safety notes
Dangerous voltage.
Electric shock will result in death or serious injury.
Disconnect all power supplies before servicing equipment.
- Faults must only be removed when the relay is disconnected
- The user has to make sure that the device and corresponding compo-
nents are installed and wired according to the local rules and law
(TUEV, VDE, Health and safety).
- Settings must only be changed by trained staff taking into account the
safety regulations. Installation work must only be done when power is
disconnected.
- Observe proper grounding of all components
E. DOLD & SÖHNE KG • D-78114 Furtwangen
e-mail: dold-relays @dold.com • internet: http://www.dold.com
• POBox1251•Telephone(+49)7723 / 654-0 • Telefax (+49) 77 23 / 654-356