RECO RM-BV4 Micro DP Operator's manual

Documentation
RM-BV4 Micro DP
Filter control

Documentation RM-BV4 Micro DP
RDN 10000662 224.01.2014
Contents
1 Safety instructions ...................................................................................................................................3
2 Device description ...................................................................................................................................3
3 Installation ............................................................................................................................................... 4
4 Installation ............................................................................................................................................... 5
4.1 Connection of the differential pressure measuring hoses .............................................................7
5 Settings ...................................................................................................................................................7
5.1 Function in "as delivered" condition ..............................................................................................7
5.2 Indication and setting elements ....................................................................................................8
5.3 Parameter setting .........................................................................................................................9
5.4 Parameter list.............................................................................................................................. 10
6 Operating modes................................................................................................................................... 12
6.1 Standard cleaning....................................................................................................................... 12
6.2 DP-controlled cleaning................................................................................................................ 12
6.3 Down time (down time cleaning)................................................................................................. 12
6.4 Forced cleaning .......................................................................................................................... 12
6.5 Valve test.................................................................................................................................... 12
6.6 DTC, Down Time Cleaning ......................................................................................................... 13
7 Troubleshooting..................................................................................................................................... 15
8 Text messages ...................................................................................................................................... 16
8.1 Operating messages................................................................................................................... 16
8.2 Additional information ................................................................................................................. 17
8.3 Alarm message........................................................................................................................... 17
9 Technical specifications......................................................................................................................... 18
Regulations
VDE 0160 EN 60.439 Part 500
EN 50178 2004/108/EC
Symbol explanation
Important note
Important warning

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1 Safety instructions
Improper installation of the RM-BV 4 Micro DP or associated equipment may cause the failure of the
device, serious or even fatal injuries. In addition to general safety rules for equipment in industrial
electrical installations, pay particular attention to the following points:
- The RM-BV 4 Micro DP must only be installed by qualified persons according to the provisions of the
standards IEC 364 and DIN VDE 0105 for electrical equipment.
- All applicable laws, conditions, rules and regulations governing the installation of electrical equipment
must be observed.
- Equipment with protection rating IP00 without covers must only be configured by authorised expert
staff when disconnected and whilst observing the local safety and accident prevention rules.
- The RM-BV 4 Micro DP is only allowed to be operated in its specified operating range.
Switch off the supply voltage before replacing the RM-BV 4 Micro DP
or components
connected to it. Failure to do so may cause equipment damage.
2 Device description
The RM-BV 4 Micro DP is used to control 24VDC solenoid valves on filtering separators with pressure
pulse cleaning. Once connected to the power supply, the filter control works automatically without further
operating.

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3 Installation

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4 Installation
Valve outputs
It is possible to connect up to 4 solenoid valves featuring a rated voltage of 24 V DC to the
terminals 9, 10, 11 … 16.
Supply voltage
There are separate controller models for the supply voltages 230 V AC, 110 V AC and
24 V DC.
Before connecting the supply voltage, check whether the rated voltage of the
controller matches with the supply voltage (see nameplate).
230 AC version
110 VAC version
24 VDC version

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Alarm output
The potential-free "Alarm" relay output, terminals 4 (NO), 5 (COM) and 6 (NC) is used for self-
monitoring of the RM-BV 4 Micro DP. This output is energised during trouble-free operation.
Following events will cause the relay contact to drop off:
Failure of the supply voltage
Broken wire on one of the connected valves
The differential pressure has fallen below the set ∆p-Min switch point (parameter 09).
The differential pressure has exceeded the set value ∆p Max. alarm sw
itch point
(parameter 10).
Input „Start / Stop“
The input „Start / Stop“ for downtime cleaning (terminals 7, 8) is factory-bridged.
When a contact
(NC) connected to this input is opened, the set downtime cycles are started, beginning with the
interval time 2. Downtime cleaning is resumed with the valve following to the last controlled valve.

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4.1 Connection of the differential pressure measuring hoses
5 Settings
5.1 Function in "as delivered" condition
Using the set control times for pulse time and pause time, all connected solenoid valves are controlled
one after the other starting with a cleaning pulse. Once the last valve has been operated, the control
circulation is continued with the first valve. This happens until the supply voltage is turned off. Once the
supply voltage has been turned on again, a restart occurs as described above.
Use the hoses with 4 mm internal diameter
and 6mm outside diameter.

Connect the connector marked with 3 stripes
(black screw cap) with
the raw gas side and
the other connector (blue screw cap) with the
clean gas side of the filter.

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The input „Start / Stop“ is factory-jumpered. The function of the input is described in chapter 4
„Installation“ under item

.
If a different function is desired, the parameter setting of the RM-BV 4 Micro DP needs to be changed.
For this, see section 5.2 „Indication and setting elements“ under item

5.2 Indication and setting elements
Parameterisation keys
Parameter selection:
Press the and keys simultaneously longer than 3 seconds.
Then, select your desired
parameter by short pressing on the keys  (scroll up) or (scroll down).
Parameter value setting:
After parameter selection, by simultaneous pressing of the keys and longer than 3 seconds.
Then, set your desired value by short pressing on the keys  (scroll up) or (scroll down).
Then, confirm the set value by simultaneous pressing the and keys longer than 3 seconds.
The new value is stored.
You can select further parameters for setting or checking by short
pressing the or key.

To return to the "Operation" mode:
Press the and keys simultaneously for a short time.
The program automatically returns to the "Operation" mode when no key has been
pressed for 1 minutes.
"Alarm" LED
The LED will flash if the "Alarm" output is disabled (see chapter 4 "Installation" under

).

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5.3 Parameter setting

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5.4 Parameter list
Parameters
Display text Meaning Factory setting Setting range
01
01 Tot.Valve.no.
Number of valves
4
1-4
02
02 Pulse Time
Pulse time of the cleaning
valves
100 ms
30-900 ms
03
03 Interval T. 1
Interval time 1
12 s
2-250 s
04
04 Down Time Cyc
Downtime cycles
01
01, 1-15
05
05 Interval T. 2
Interval time 2 (pause in down
time)
5 s
2-250 s
06
06 Forc. cl.time
forced cleaning time
01
01, 1-24 h
07
07 Working hours
delete ?
Resets the working hour
counter² to 0 h.
–
No / yes
08
08 Default set.
load ?
Resets the device to the factory
setting.
–
No / yes
09
09 dP min
∆p-Min alarm switch point
700 Pa
200-2000 Pa
10
10 dP max
∆p-Max switch point
1300 Pa
01, 300-3000 Pa
11
11 dP min alarm
∆p-Min alarm switch point
01
01, 200-2500 Pa
12
12 dP max alarm
∆p-Max alarm switch point
2300 Pa
01, 1000-3500 Pa
13
13 dP Units
Unit of the displayed differential
pressure value
Pa
Pa, mbar, mmWG,
inWG
14
14 dP Switch
∆p change-over value from
interval time 1 to interval time 2
1500 Pa
500-2500 Pa
15
15 Interval T. 3
Reduced interval time in DP
mode
5 s
2-250 s
16
16 DTC Clean.Mod
"∆p-controlled down time"
mode
1
1-33
17
17 dP DTC Min
∆p Min. switch point for the
down time
260 Pa
200-1000 Pa
18
18 dP DTC Max
∆p MAX switch point for the
down time
1000 Pa
300-1200 Pa
19
19 Service Alarm
Service operating hours alarm4
25000 h
2000-25000 h
10 = function deactivated
2Working hours: Sum of all time periods during which cleaning was active.
31 = DTC mode 1: Down time cleaning will be started via the contact 7, 8.
2 = DTC mode 2: Down time cleaning will only be started after the fan shut-down if the differential pressure
has exceeded the„dP DTC Max“ value during operation..
3 = DTC mode 3: Down time cleaning will be started if the differential pressure was under the (parameter 17) „dP DTC Min“
has fallen below, after the value „dP DTC Max“ (Parameter 18) was first exceeded. The signal at input 7, 8
is not considered.
4The service hour counter runs when the differential pressure P is higher than 200 Pa and the parameter 19 „Service Alarm“ is
not set to "0".

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Parameters
Display text Meaning Factory setting Setting range
20
20 S.Run Hours
delete ?
Resets the service hour
counter to 0 h.
–
No / yes
21
21 Relay funct.
Relay function selection
15
1-35
22
22 Test mode
start ?
Testing of the connected
valves
–
No / yes
23
23 Language
Language of display text
D
D, GB, F, E
51 = mode 1: The relay output is active when a fan alarm is present.
2 = mode 2: The relay output is active when the fan alarm and the Δp-Max alarm are active.
3 = mode 3: The relay output is active during the cleaning.

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6 Operating modes
6.1 Standard cleaning
For this, see the section 5.1 „Function in "as delivered" condition“..
6.2 DP-controlled cleaning
In "Operation" mode, the filter's current differential pressure ∆p is displayed in the text display. Cleaning
starts when the differential pressure has reached the value „10 dP max“. The solenoid valves are
controlled one after the other using the interval set in parameter 15. By cleaning the differential pressure
drops after a certain period of time. When the differential pressure has reached the value „09 dP min“,
the current cleaning cycle is run up to the end. Then, the cleaning process stops.
6.3 Down time (down time cleaning)
For this, see chapter 4 „Installation“ under item

6.4 Forced cleaning
A complete cleaning cycle is performed when the set forced cleaning time (parameter 06) has lapsed.
6.5 Valve test
For the execution of a valve test, the parameter 22 „Test mode“ must be set to the value „yes“. Then, all
valves are operated one after the other for one cycle with the set pulse time (parameter 02) and an
interval time of 4 seconds. After the completion of the test, the device automatically returns to the current
operating mode.

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6.6 DTC, Down Time Cleaning
Down time cleaning is activated differently, depending on the mode selected.
With the DTC mode 1, down time cleaning is started via contact 7, 8 (fan stop: Contact 7, 8 must open).
With DTC mode 2, down time cleaning after deactivation of the fan is started only if the differential
pressure has exceeded the value „dP DTC Max“ (Parameter 18) during operation. Contact 7, 8 must
open).

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With DTC mode 3, down time cleaning is started if the differential pressure has fallen below the value „dP
DTC Min“ (Parameter 17). after the value „dP DTC Min“ (Parameter 18) was first exceeded. The signal
at input 7, 8 is not considered.

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7 Troubleshooting
Fault Possible causes Recommended action
No display text message
-
No mains voltage
-
Check the power supply
-
Fuse in device defective
-
Replace fuse
- System EMERGENCY-STOP
actuated
- Check EMERGENCY-STOP
No valve activity and text
message "Alarm valve #" - Wiring to valves interrupted - Check cables and electrical
connections
-
Solenoid defective
-
Replace coil
No valve activity and text
message "Cleaning stop"
- Cleaning stopped via the
"Start / Stop" input
(terminals7, 8).
- Input „Start / Stop“ bridge
terminals 7, 8.
No downtime cleaning - Parameter 04 = 0
(downtime cycles)
- Set parameter 04
"Downtime cycles" to another
value
- No signal from the fan control
present
- Apply signal to input „Start /
Stop“ terminals 7, 8.
Cleaning not effective - Interval too long - Set parameter 03 "Interval 1"
to a lower value
-
Pressure too low
-
Pressure to 6 ... Set pressure
to 8 bar (min. 5 bar)
-
Set parameter 03 "Interval 1"
to a higher value
-
Valve defective
-
Check / replace valves
- Pulse time too short - Set parameter 02 “Pulse
time” to higher value

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8 Text messages
8.1 Operating messages
Display Meaning
After applying the voltage, the text message is displayed for approx.
1 second. The device powers up during this time and conducts a self-
test.
RM-BV 4 Micro+dP
Version #.##
The cleaning is active.
#The currently operated valve is displayed in row 1 as number
1 ... 4 "displayed.
#### If the differential pressure sensor is connected to the filter via the
measuring hoses the current differential pressure Δp of the filter
will be displayed in row 2 in Pa.
Cleaning #
dP #### Pa
Cleaning is stopped via the "Start / Stop" input and the down time
cleaning is active.
#
The currently operated valve is displayed in row 1 as number 1 ...
4 "displayed.
####
If the differential pressure sensor is connected to the filter via the
measuring hoses the current differential pressure Δp of the filter
will be displayed in row 2 in Pa.
DTC Cleaning. #
dP #### Pa
Cleaning is stopped via the "Start / Stop" input and the down time
cleaning is disabled or the set down time cleaning cycles are executed..
The control is in stand-by mode.
#### If the differential pressure sensor is connected to the filter via the
measuring hoses the current differential pressure Δp of the filter
will be displayed in row 2 in Pa.
Stand By
dP #### Pa
The forced cleaning is active.
#
The currently operated valve is displayed in row 1 as number 1 ...
4 "displayed.
#### If the differential pressure sensor is connected to the filter via the
measuring hoses the current differential pressure Δp of the filter
will be displayed in row 2 in Pa.
Forced cleaning#
dP #### Pa

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8.2 Additional information
Depending on the operating status, you can display further information by short pressing the or key.
If no key is pressed within one minute, the display will automatically change to the original text message.
Example
With enabled forced cleaning and stopped cleaning ("Start / Stop" input), the display shows the message
„Stand By“. Once the key is shortly pressed, the messages „Hours in operat.“ (operating hours),
„Working hours“ (working hours), „Time to service “ (time remaining to the next filter
maintenance) and „Time unt.forc.cl“ (time remaining to the next forced cleaning) are displayed.
Display Meaning
Display of the operating hours (sum of all time periods during which the
supply voltage was ON).
Hours in operat.
##### h
Display of the working hours (sum of all time
periods during which the
cleaning was active).
Working hours
##### h
The time remaining to the next maintenance of the filter is displayed.
Time to service
#### h
Cleaning is stopped via the "Start / Stop" inpu
t and the forced cleaning is
active.
The time remaining to the start of the forced cleaning is displayed.
Time unt.forc.cl
## h ## min
8.3 Alarm message
Display Meaning
Wire break on the indicated valve output.
Valve #
Error
Alarm messages are saved.
This alarm remains after the root cause for the alarm has been
eliminated.
You can acknowledge the alarm by shortly pressing the or key.

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9 Technical specifications
Item
Data
Terminals
Supply voltage
Device version 230 V AC:
1 (L), 2 (N), 3 (PE)
230 V AC + / -10 %
Device version 110 V AC:
1 (L), 2 (N), 3 (PE)
110 V ... 120 V AC + / -10 %
Device version 24 V DC:
1 (+), 2 (-)
24 V DC +10 % / -0 %
Outputs for
solenoid valves
4 outputs,
24 V DC, max. 1.9 A
9, 10 (Valve 1),
11, 12 (Valve 2),
13, 14 (Valve 3)
15, 16 (Valve 4)
Signal input
1 inputs 24 VDC, to be served potential-free
7, 8
Signal output
1 relay outputs (changeover contact), potential-free
Max. contact rating:
250 V AC, 10 A
50 V DC, 1,5 A / 30 V DC, 10 A (ohmic)
4, 5, 6
∆p measuring range
0 … 5000 Pa
Measuring sensor
piezoresistive
Power consumption
Device version 230 V AC:
0.2 A
Geräte-Version 110 V AC:
0,35 A
Device version 24 V DC:
1,13 A
Fuse
Device version 230 V AC:
T 0.3 A, 250 V, 5 x 20 mm
Device version 110 V AC:
T 0,4 A, 250 V, 5 x 20 mm
Device version 24 V DC:
T 2,5 A, 250 V, 5 x 20 mm
Temperature range
-20 °C ... +60 °C
Protection class
Housing IP66, NEMA 4
Weight
approx. 950 g
Altitude
Max. 3000 m above sea level
Disclaimer
The contents of this documentation have been verified for correctness and completeness. Nevertheless, errors can not be excluded
so that we cannot guarantee the correctness of this information. Subject to alterations at any time.