Extron electronics M Series User manual

Manual M-series
MA1479-1.doc
Monitoring M-series
Manual
19” and Wall
English
Manual for M-series monitoring unit
with firmware ver. 102 and later.
For support and information:
Extron AS
Tel: [phone]
Mobile: [phone]
[email protected]
www.extron.no
Nedre Rælingsvei 261
N-2008 FJERDINGBY

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Foreword
M-series are monitoring units for DC-systems with voltage range 9 – 300 VDC.
For monitoring of DC-voltage, DC-current, earth fault and AC-voltage and also triggering of
battery test. Settings are easily made with buttons on the front panel and momentary
value/setting is shown in the display. For advanced settings there is a service menu.
M-series is available both as 19” and wall-mount.
Difference between the M-series models
M100
M200
M300
Display of DC-voltage ● ● ●
Display of current
●
Display of AC-voltage
●
Display of earth fault value ● ● ●
High DC voltage alarm
●
●
●
Low DC voltage alarm 1 ● ● ●
Low DC voltage alarm 2
●
●
●
Earth fault
●
●
●
Battery test (circuit/capacity) ●
Mains fault
●
Powered by DC ● ● ●
Separate relays for every alarm
●
●
Sum alarm relay
●
●
●
The front panels are different according to illustration below. M300 has all that M100/M200
offers and also display of current, mains voltage and buttons for battery test (start/stop,
interval, length) and mains fault delay. Levels for battery test and mains fault are adjusted in
the service menu (see other chapter).
M300 M200
M200
M300

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Installation 19”
Unpack
Open box and find follow parts:
1 pcs. monitoring unit M-series
1 pcs. manual
1 pcs. set of male connectors for connection on backside
1 pcs. connected cable for earth fault sensing
1 pcs. set of attached nuts and washers on earth bolt
Install the unit in the 19” rack and connect safety earth cable, DC-power and signaling
cables.
Never do a high-pot test without disconnecting the earth fault sensor cable.
Disconnect this cable before doing the test.
The unit starts automatically when DC-power is connected.
Installation Wall
Unpack
Open box and find follow parts:
1 pcs. monitoring unit M-series
1 pcs. manual
1 pcs. set of male connectors for connection inside
1 pcs. connected cable for earth fault sensing
Option: 2 pcs. of brackets for door-mounting incl. screws and washers
Wall-mounting
Unscrew the screws on the four sides and remove the front panel. Fasten the back side
against the wall by using the four holes at each corner inside. Connect the cables for safety
earth (preferably the same screw as for earth sensor), DC-power and signaling. Use the wire
pull protections. Finally fasten the front panel again with the four screws.
Door mounting
Unscrew the screws on the four sides and remove the front panel. Fasten the mounting
brackets (option) with the screws. Fasten the front panel against the door. Connect the
cables for safety earth (preferably the same screw as for earth sensor), DC-power and
signaling. Use the wire pull protections. Fasten the back side using the screws.
Never do a high-pot test without disconnecting the earth fault sensor cable.
Disconnect this cable before doing the test.
The unit starts automatically when DC-power is connected.

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Connections left
Illustration for M300 19”. M100/200 has fewer connections which is shown by the label on
the unit. The wall model has the corresponding connectors internally as the 19”. For
connection of the safety earth on Wall model use the same screw as for earth fault sensing.
Mains alarm relay in/out (only M300), Used with
external main fault relay. UT gives 5V which are
connected to the relay and returned to IN. The input
can be inverted with a setting in the service menu. Do
not use at the same time as AC-input (see below.
Shunt +/- (only M300), for connection of current
shunt. The shunt must be connected to minus side.
Different values for shunts can be used. Max 60mV.
The unit is precalibrated for 100A/60mV. Calibration
for other shunts are made in the service menu.
Earth fault sensing, connects to the safety earth bolt.
Disconnect when doing hi-pot test.
DC, for powering the unit and for measuring of DC-
voltage. Depending on model: 9-36VDC, 30-75VDC or
70-300VDC.
AC N and L (only M300), for connecting of mains
voltage to measure voltage level and mains fault. Not
used for powering the unit. Do not use at the same
time as external main fault relay (see above).
Earth stud, connection of safety earth and earth fault
sensor.

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Connections left
Illustration for M300 19”. M100/200 has fewer connections which is shown by the label on
the unit. The wall model has the corresponding connectors internally as the 19”.
Relay outputs
B open when alarm
S closed when alarm
G common
Mains fault (only M300)
Low DC voltage 2 (only M200/300)
Battery test, for triggering a rectifier (only M300)
Battery test, for faulty battery test (only M300)
High DC voltage (only M200/300)
Low DC voltage 1 (only M200/300)
Earth fault (only M200/300)
Sum alarm (all models)

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Front panel
Below is explanation of front panel. The different models in the M-series are different in form
and function and all features may not be present on delivered unit.
Measurement connectors, display, display indicators and display button
Alarm indicators and the battery test indicator
Buttons for choosing what to display
Indicators for what is displayed
The display shows momentary values or adjustment
value (by pressing adjustment button. VDC: 0-
300VDC. ADC: depends on shunt. KΩ(+)KΩ(-): 0-
1000KΩ, above 1000KΩ display shows ”----”. VAC:
0-250VAC, above 250 VAC display shows ”----”.
Earth connector (not for safety earth)
Measurement connector for V-meter. Short circuit
protected.
Red alarm indicators. Flashes when each alarm
has been triggered. If set delay is reached the
indicator goes into latched state (and the relay is
closed) and does not stop flashing until the alarm
is gone and the reset-button is pressed. Note:
battery fault goes into latched state instantly
without delay. Automatic resetting (no latching)
can be enabled in the service menu.
Yellow battery test indicator. Flashing when
battery test is in progress. Manually started or
auto.

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Buttons
B-test: Start/stop battery test. If no battery
test is in progress the battery test is started
with the length that is set by using the
”length-button”. If pressed while battery test
is in progress the battery test is stopped.
Both manual and automatically started tests
can be stopped.
Reset: Alarm reset. Flashing alarm
indicators with no alarms active stops
flashing.
I-val: Battery test interval. For setting of
time between start of battery tests.
Possible: Off, 1 day, 30 days, 90 days and
180 days.
Length: Battery test length. Possible: 5 sec
(circuit test), 15 min, 30 min, 1 hour, 2
hours, 4 hours.
Level buttons for earth fault, high DC
voltage, low DC voltage 1 and low DC
voltage 2.
Earth fault: 50-1000Kohm.
High DC voltage, low DC voltage and low
DC voltage 2: 1-300VDC
Delay buttons. Delay of earth fault, mains
fault, high DC voltage, low DC voltage 1
and low DC voltage 2. Possible: 1-1800
sek. Above 1800 sec blocks the alarm and
is indicated with ”bloc” in the display.
Blocking blocks both alarm indicators and
relay.
Button (+) and button (-), press each
adjustment button to the left and press
these buttons to increase (+) and decrease

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Service menu
The service menu is used for calibration and other settings. It is used when testing the unit
before leaving the factory and can be used when the installer wants to adapt the units in a
more advanced way than is being offered by only using the normal settings. Use the service
menu with care.
Enter/exit the service menu and navigation
Enter the service menu by holding in the level
buttons for high DC voltage and for low DC voltage
2. The display shows an animation. Keep holding
the buttons until ”On” is displayed. Release the
buttons. The number ”0” is shown which is the
service menu.
Navigate to the menus with +/-. Then push the
button “Display” and use +/- to change the setting.
Available menus are listed on next page.
The service menu is exit the same way as it is
entered. By holding in the level buttons for high DC
voltage and for low DC voltage 2. The display
shows an animation. Keep holding the buttons until
”Off” is displayed. Release the buttons.
The service menu is automatically shut off after 5
minutes of no button presses.

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List of service menu settings
Choose the menu by pressing +/-. Start adjusting the setting by pressing Display button and
+/-.
0
LED/indicator test.
All indicators on the front panel and all segments in the 4-digit display is lit.
1
Relay-test.
Press the Display button and push +/- to test each relay. Which relay that is tested is
indicated on the indicators for each alarm and also with words in the 4-digit display.
2
Set all levels to factory default.
Recalls the factory defaults for high DC voltage, low DC voltage 1, low DC voltage 2 and
battery test depending on selected nominal voltage. Press display button and use +/-.
Voltage High DC voltage Low DC voltage 1 Low DC voltage 2 Battery test
12 V 14.0 V 11.4 V 10.2 V 11.8 V
24 V 28.0 V 22.8 V 20.4 V 23.5 V
36 V 41.9 V 34.2 V 30.6 V 35.3 V
48 V 55.9 V 45.6 V 40.8 V 47.0 V
60 V 69.9 V 57.0 V 51.0 V 58.8 V
108 V 125.8 V 102.6 V 91.8 V 105.8 V
120 V 139.8 V 114.0 V 102.0 V 117.6 V
216 V 251.6 V 205.2 V 183.6 V 211.7 V
The nominal voltage is set from factory if specified by order specifications. If no order
specification is told then the voltages are: 12-24: 24V, 36-60V: 48V, 110-220V: 108V.
3
M-series model.
M100, M200 or M300. Governs the different choices possible for display values and which
alarm can be used. Press Display button and use +/-. The correct model is set from the
factory.

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4
Calibration of DC-voltage.
Connect calibrated V-meter in the V-meter output. Press Display button and use +/- to set
the same value in display as the V-meter is showing. Release Display button. Calibration is
finished. Calibration of earth fault display is recommended after calibration of voltage. The
unit is calibrated before delivery from factory.
5
Calibration of earth fault.
Check that no earth fault is present or disconnect the earth fault sensing cable. Press
Display button (without holding) to start the calibration. The display shows an animation and
the calibration is done automatically. The calibration is done when “done” is shown in the
display. Make sure the calibration if DC-voltage is done before calibration of earth fault. The
unit is calibrated before delivery from factory.
6
Calibration of current display zero-value (only M300).
This menu is not active in units with firmware ver. 102 and later. The Display button can be
pressed and Done will be shown in order to replicate earlier versions but it doesn’t do
anything.
7
Calibration of current display (only M300).
Use calibrated A-meter as reference. Increase the current over the shunt to max. Press
Display button and use +/- to set the same value in the display as the A-meter is showing.
Release Display button. The calibration is now finished. If the display current value is still not
correct try calibrating the zero-value first and retry calibrating the current display. The unit is
calibrated for a 100A/60mV shunt from factory.
8
Calibration of mains voltage display (only M300).
Connect external V-meter to the main voltage. Press Display button and use +/- to set the
same value as the V-meter is showing. Release Display button. The calibration is now
finished.
The unit is calibrated before delivery from factory.

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9
Set battery test voltage level (only M300).
Set this to a level just above the level the rectifier is set to when doing battery test. The
monitoring unit triggers the rectifier to go to battery test level with the battery test relay. At
the same time the monitoring unit is measuring the DC-voltage from the rectifier/battery. If
the level set here is reached the battery fault alarm is triggered. The battery test level is set
based on order specification. If no order specification is sent then the voltage is set by the
following table: 12 V: 11.8 VDC
24 V: 23.5 VDC
36 V: 35.3 VDC
48 V: 47.0 VDC
60 V: 58.8 VDC
108 V: 105.8 VDC
120 V: 117.6 VDC
216 V: 211.7 VDC
10
Blocking of battery test alarm (only M300).
When blocked the alarm indicator never flashed and the relay is never in alarm mode. Push
the Display button and use + for On and – for Off.
On = alarm is blocked, Off = alarm is not blocked.
Factory default: Off or according to order specification.
1 1
Inverting of input for external mains alarm relay (only M300).
When using an external main alarm relay the output ”Mains alarm relay OUT” is connected
to the mains alarm relay and then back into ”Mains alarm relay IN”. When the relay is closed
the monitoring unit sense this and it is either taken as a fault or a non fault. Press the Display
button and press + for On and – for Off.
On=Alarm is triggered when the relay is closed
Off=Alarm is triggered when the relay is open
If the external mains relay is not used and instead the AC-input to be used the invert function
must be inactive (Off).
Factory default = Off.
12
Setting of mains fault level (only M300).
Set at which level the main fault alarm is triggered. Possible: 1-250VAC. The level is only of
use when using the AC-input and not the external mains fault relay. For correct level the
inverting of the input must be “Off” (see 11). Press display button and use +/- to set level.
Factory default= 190 VAC.

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13
Setting of low input voltage protection level.
Press display and use +/- to set level. When DC voltage is below set level the unit shuts off.
When the DC-voltage goes back above set voltage (plus hysteresis) the unit turns on. The
level cannot be set more than 95% of the momentary DC-voltage. If the level anyway would
be set above the possible DC-voltage supply level the level can be forced to 0 by
disconnecting the DC-voltage and then pressing the Display button while connecting the DC-
voltage again. Then use this service menu setting to set the voltage to the correct level
again.
Factory default levels:
9-36 VDC: 9 VDC
30-75 VDC: 30 VDC
70-300 VDC: 70 VDC
The levels are based on each DC/DC converters minimum input voltage.
14
Setting of automatic alarm reset.
When an alarm is triggered the alarm indicator starts flashing. After set delay the relay is set
to alarm mode and the alarm indicator goes into latched state. When the cause of the alarm
is gone the relay is released but the alarm indicator keeps flashing until the “Reset” button is
pressed. With automatic alarm reset the indicator never goes to the latched state and stops
flashing when the cause of the alarm is gone. I.e. no need to ever press the Reset button.
Press the Display button and use + for On and – for Off.
Off = No automatic alarm reset (The indicator keeps on flashing)
On = Automatic alarm reset (The indicator stops flashing when cause of alarm is gone)
Factory default: Off or according to order specification.
15
Display of firmware version.
Press Display button to show version.
16
Setting of hysteresis for low DC voltage.
If the voltage is higher than set level the alarm is triggered. The voltage must then go below
the set level minus this hysteresis level in order for the alarm to become inactive.
Example:
voltage > voltage alarm level = alarm
voltage < voltage alarm level – hysteresis level = alarm inactive
Factory default: 0 VDC or according to order specification.

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17
Setting of hysteresis for low DC voltage 1.
If the voltage is lower than set level the alarm is triggered. The voltage must then go above
the set level plus this hysteresis level in order for the alarm to become inactive.
Example:
voltage < voltage alarm level = alarm
voltage > voltage alarm level + hysteresis level = alarm inactive
Factory default: 0 VDC or according to order specification.
18
Setting of hysteresis for low DC voltage 2.
If the voltage is lower than set level the alarm is triggered. The voltage must then go above
the set level plus this hysteresis level in order for the alarm to become inactive.
Example:
voltage < voltage alarm level = alarm
voltage > voltage alarm level + hysteresis level = alarm inactive
Factory default: 0 VDC or according to order specification.
19
Setting of hysteresis for Earth fault.
If the earth fault is lower than set level the alarm is triggered. The earth fault must then go
above the set level plus this hysteresis level in order for the alarm to become inactive.
Example:
earth fault < earth fault alarm level = alarm
earth fault > earth fault alarm level + hysteresis level = alarm inactive
Factory default: 0 KΩ or according to order specification.
20
Setting of hysteresis for Mains fault (only M300).
If the mains voltage is lower than set level the alarm is triggered. The mains voltage must
then go above the set level plus this hysteresis level in order for the alarm to become
inactive.
Example:
mains voltage < mains voltage alarm level = alarm
mains voltage > mains voltage alarm level + hysteresis level = alarm inactive
Factory default: 0 VAC or according to order specification.

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2 1
Setting of hysteresis for low input voltage protection.
If the DC-voltage is lower than set level the unit shuts off. The DC-voltage must then go
above the set level plus this hysteresis level in order for the unit to turn on.
Example:
DC-voltage < low input voltage protection level = unit shuts off
DC-voltage > low input voltage protection level + hysteresis level = unit turns on again
Factory default: 1 VDC
2 2
Test of internal watchdog.
If the monitoring unit is exposed to extreme transients or other extreme disturbances the
microcontroller can freeze. An internal routine in the microcontroller will then restart the unit.
Push the Display button. The unit till restart after 3 seconds.
2 3
Test of external watchdog.
If the monitoring unit is exposed to extreme transients or other extreme disturbances the
microcontroller can freeze. An external circuit that complements the internal routine (see no.
22) will restart the unit.
Push the Display button. The unit till restart after 1.5 seconds.

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Technical data
Input voltage
9-36 VDC, 18-75 VDC eller 70-300 VDC
Alarm levels
High DC voltage/low DC voltage: Measuring the DC-voltage.
Alarm level possible: 1-300V.
Earth fault: Alarm level possible: 50-1000Kohm.
Delay of all alarms except battery test: 1-1800 sec or blocking.
Separate settings for level/delay:
High DC voltage, low DC voltage 1, low DC voltage 2,
earth fault +/-, battery test level (only M300), mains fault with AC-input (only M300).
Relay connections
Potential free. Every relay has 3 connections. Common, alarm, and no alarm. When no DC-
power to the unit the M-series sets alarm active on all relays.
Break capacity: 8A 230VAC
Relays for:
High DC voltage (only M200/300)
Low DC voltage 1 (only M200/300)
Low DC voltage 2 (only M200/300)
Earth fault (only M200/300)
Battery fault (only M300)
Battery test, triggering of rectifier (only M300)
Mains fault (only M300)
Sum alarm (all models)
Mains fault (only M300)
By using AC-input or by using external mains fault relay (not included)
Display
4 digit LED display.
Dimensions
19”:
Width 19” (482,6mm), height 1HE (44,45mm), depth 197mm incl. safety earth stud,
164,5mm excl. safety earth stud.
Wall:
Width without brackets 263mm, Width with brackets 305mm, height without cable
protections 163mm, height with cable protections 172mm, depth 63 mm.