Miura MW-35U User manual

MAINTENANCE MANUAL
SYSTEM INTEGRATED WATER SOFTENER
MW-35U - 1000U
(America Product)
MIURA CO., LTD.
This document was formulated in Japan. Comply with the
regulations and standards of the country of use regarding
installation and usage.
The specifications of products and components may vary
with country of use and the site situation.
INFORMATION IN THIS MANUAL MAY BE CHANGED
WITHOUT NOTICE.
Manual Code No. S827-089-0917

MIURA_CONFIDENTIAL
No. S827-089-0917
- Table of Contents -
1. System Construction and Description of Parts ..........................................................1
1.1 Overview ..................................................................................................................................1
1.1.1 MW-35U, MW-65U ...........................................................................................................1
1.1.2 MW-100U, MW-150U, MW-250U, and MW-400U ...........................................................2
1.1.3 MW-600U and MW-1000U...............................................................................................3
1.2 Control Box –– Internal Diagram .............................................................................................5
1.2.1 MW-35U, MW-65U, MW-100U, MW-150U, MW-250U, and MW-400U ..........................5
1.2.2 MW-600U and MW-1000U...............................................................................................6
1.3 Names and Functions of the Control Panel.............................................................................7
1.4 Names and Functions of Operated Parts on CPU Board .......................................................8
1.5 Flow Sheet .............................................................................................................................11
1.5.1 MW-35U, MW-65U .........................................................................................................11
1.5.2 MW-100U,MW-150U, MW-250U, and MW-400U ..........................................................12
1.5.3 MW-600U and MW-1000U.............................................................................................13
2. LCD Display and Settings........................................................................................14
2.1 Operation and Display Flowchart ..........................................................................................14
2.2 Details of Each Mode.............................................................................................................15
2.2.1 Display when Powering Up ............................................................................................15
2.2.2 User Mode......................................................................................................................15
2.2.3 Setting Modes ................................................................................................................17
2.2.4 I/O Modes.......................................................................................................................25
2.2.5 Alarm History Mode........................................................................................................26
2.2.6 Management Data Mode................................................................................................26
2.2.7 Maintenance Manual Regeneration Mode.....................................................................27
2.2.8 Control Valve Position Manual Reset Mode ..................................................................27
3. Control Overview.....................................................................................................28
3.1 Regeneration Modes .............................................................................................................28
3.1.1 Alternating regeneration based on flow rate..................................................................28
3.1.2 Alternating periodic regeneration ...................................................................................28
3.1.3 Single-unit regeneration based on time and flow rate ...................................................28
3.1.4 Single-unit periodic regeneration ...................................................................................29
3.2 Manual Regeneration ............................................................................................................29
3.2.1 User Manual Regeneration ............................................................................................29
3.2.2 Maintenance Manual Regeneration...............................................................................29
3.3 Regeneration Process Control ..............................................................................................30
3.3.1 Service Process .............................................................................................................32
3.3.2 Service → Backwash Process Transition ......................................................................33
7
7
7
7
7
7

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No. S827-089-0917
3.3.3 Backwash Process.........................................................................................................34
3.3.4 Backwash → Regeneration Standby Process Transition ..............................................35
3.3.5 Regeneration Standby Process .....................................................................................36
3.3.6 Regeneration Standby → Brine Process Transition ......................................................37
3.3.7 Brine Process .................................................................................................................38
3.3.8 Brine → Slow Rinse Process Transition ........................................................................39
3.3.9 Slow Rinse Process .......................................................................................................40
3.3.10 Slow Rinse → Fast Rinse or Brine 2 Process Transition...............................................41
3.3.11 Brine 2 Process ..............................................................................................................42
3.3.12 Brine 2 → Slow Rinse 2 Process Transition ..................................................................42
3.3.13 Slow Rinse 2 Process ....................................................................................................43
3.3.14 Slow Rinse 2 → Fast Rinse Process Transition ............................................................43
3.3.15 Fast Rinse Process ........................................................................................................44
3.3.16 Fast Rinse → Refill Process Transition .........................................................................45
3.3.17 Refill Process .................................................................................................................46
3.3.18 Refill → Service Standby Process Transition ................................................................47
3.3.19 Service Standby Process...............................................................................................48
3.3.20 Service Standby → Service Process Transition ............................................................49
3.3.21 Unit Failure Process.......................................................................................................50
3.3.22 Control Valve Position Reset Process ...........................................................................53
3.4 Regeneration Control Data Table ..........................................................................................54
3.5 Control when Regeneration Ends..........................................................................................55
3.5.1 Residual Capacity Reset Processing.............................................................................55
3.5.2 Regeneration Interlock Time Processing .......................................................................56
3.6 Coordinated Control with Colormetry ....................................................................................56
3.6.1 Backup Control with Colormetry (Hardness Leakage Regeneration) ...........................56
3.6.2 Automatic Calculation and Control of Amount of Water Sampling with Colormetry......58
for Raw Water Hardness ............................................................................................................58
4. MOM Communications ............................................................................................59
4.1 Saving and Loading the Settings...........................................................................................59
4.2 Guide to Screens ...................................................................................................................61
4.2.1 Realtime Monitor Screen................................................................................................61
4.2.2 Monitor Data Screen ......................................................................................................64
4.2.3 Regeneration History Data Screen ................................................................................66
4.2.4 Alarm History Data Screen.............................................................................................69
5. Guide to Warnings, Cautions, and Notices ..............................................................72

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1. System Construction and Description of Parts
1.1 Overview
1.1.1 MW-35U, MW-65U
Control box
Brine tank
Control panel
Pressure gauge
Pressure switch
Water sampling port
Inlet valve
(procured on site
Pressure reducing valve
*Installed when the raw
water pressure is high
Strainer
Water flowmeter
Flow control valve
No. 2 unit
Ggou
No. 1 unit
Ggou
Bypass valve assembly
Figure 1.1: System Overview (MW-35U, MW-65U)
Control valve
Front view
Rear view
Softened
water outlet
Raw water
inlet
Regeneration
drain outlet
7
7
7

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1.1.2 MW-100U, MW-150U, MW-250U, and MW-400U
※Piping shape is slightly different between MW-100U and MW-150 to MW-400U.
※Resin tank shape is slightly different between MW-100U/150U and MW-250/400U.
Figure 1.2: System Overview (MW-100U, MW-150U, MW-250U, and MW-400U)
Control valve
Control panel
Brine tank
No. 1 unit
Ggou
No. 2 unit
Ggou
Front view
Control box
Pressure
gauge
Water
sampling
port
Pressure switch
Water
flowmeter
Inlet
valve
(procured
on site)
Flow
control
valve
Raw water
inlet
Softened
water outlet
Pressure reducing
valve
*Installed when
the raw water
pressure is high
Strainer
Regeneration
drain outlet
Rear view
7
7
7
7

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1.1.3 MW-600U and MW-1000U
Figure 1.3: System Overview (MW-600U and MW-1000U)
Drain valve
Details of resin tank bottom
Front view
Control panel
Brine tank
Pressure
gauge
.
No.1 unit
*The only difference between
the No.1 unit and No.2 unit is
the existence of the pressure
gauge and pressure switch.
The pressure gauge and
pressure switch are installed
on the No.1 unit.
Control valve assembly
Bypass valve assembly
No.2 unit
Brine flowmeter
Pressure gauge
Pressure switch
Maintenance valve
(with strainer)
“Always open”
Inlet valve
“Always open”
Bypass valve
“Always closed”
Outlet valve
“Always open”
Pressure reducing valve
Details of control valve assembly
Brine valve assembly
Automatic valve assembly
Manual valve assembly

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Figure 1.4: System Overview (MW-600U and MW-1000U)
Bypass valve
“Closed”
Inlet valve
“Open”
Outlet valve
“Open”
*Open the valves as shown
above during operation.
When water bypasses
water softener
Details of manual valve assembly (bypass valve)
When three
handles are
turned by 180°
and indications
are reversed,
water is bypassed.
Maintenance
valve
Pressure reducing
valve
*Installed when
the raw water
pressure is high
Strainer
Water
sampling port
Strainer
Water flowmeter
Flow control valve
Raw water
inlet
Front view
Softened
water outlet
Regeneration
drain outlet
Regeneration
drain outlet
7
7

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1.2 Control Box –– Internal Diagram
1.2.1 MW-35U, MW-65U, MW-100U, MW-150U, MW-250U, and MW-400U
* In the case of an old type MW, AC power is supplied to the control box, and the switching power supply
and fuses are installed in the box.
Figure 1.5: Control Box Internal Diagram (MW-35U to MW-400U)
DS-NET
terminal block
DIP switches
CPU board
Relay circuit board
Terminal block
Relay

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1.2.2 MW-600U and MW-1000U
* In the case of an old type MW, AC power is supplied to the control box, and the switching power supply
and fuses are installed in the box.
Figure 1.6: Control Box Internal Diagram (MW-600U and MW-1000U)
DS-NET terminal
block
DIP switches
CPU board
PLC
Relay
Terminal block
Relay circuit board

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No. S827-089-0917
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[AL01:____F520-28]
[End_Alarm_Check_]
Stop
Buzzer
Stop
Buzzer
Stop
Buzzer
[Reset_Completed_]
Press for 3
seconds
Stop
Buzzer
Screens
Current alarm
history display
1.3 Names and Functions of the Control Panel
LCD screen
•Displays operating status, settings information, and alarm messages.
“Stop Buzzer/Check Notice” button
•Press this button when the “Notice” or the “Alarm” lamp is
flashing and the buzzer sounding to light the lamp
continuously and stop the buzzer.
•Press this button when no warning, caution, or notice has
occurred to display the current warning, caution, and
notice histories in sequence.
•Hold down this button when the current alarm history is
displayed to forcibly cancel the displayed alarms.
Different alarms can be canceled in the user mode and
maintenance mode.
For details, see “5. Guide to Warnings, Cautions, and
Notices” on page 72.
“Manual Regen.” button
•Used for manual regeneration of a unit during the Service process.
•Forcibly regenerates a unit or advances the process when the maintenance switch (DIP switch SW1-1)
is ON in the maintenance manual regeneration mode.
“Item ” button
•Switches between items shown on the LCD.
•Increases the set value when making settings.
“Mode ” button
•Switches the display mode when the maintenance switch (DIP switch SW1-1) is ON.
•Moves between digits when making settings.
Lamps
LCD screen
“Stop Buzzer/Check Notice” button
“Item” button
“Mode” button
“Set/OK” button
“Manual Regen.” button
Figure 1.7: Control Panel
Figure 1.8:
Operation to Forcibly Cancel Alarms

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“Set/OK” button
•Flashes the displayed character string to allow the setting to be changed when a set item is displayed.
•If this button is pressed while the setting can be edited (flashing), the flashing character string lights
continuously and the set value is confirmed.
•Resets the control valve position of the required unit when the maintenance switch (DIP switch SW1-1)
is ON in the control valve position reset mode.
“Normal” lamp (green LED)
•Lights when the power is on and no alarm has occurred.
•Goes out when an alarm is generated. Lights again after the alarm is canceled.
“Notice” lamp (yellow LED)
•Flashes when a caution or notice is generated.
•Stops flashing and lights continuously when the “Stop Buzzer/Check Notice” button is pressed.
•Turns off when the cause of the caution and notice is removed and the water softener returns to normal
status.
“Alarm” lamp (red LED)
•Flashes when a warning is generated.
•Stops flashing and lights continuously when the “Stop Buzzer/Check Notice” button is pressed.
•Turns off when the cause of the warning is removed and the water softener returns to normal status.
1.4 Names and Functions of Operated Parts on CPU Board
Figure 1.9: CPU Board
DIP switch SW1
DIP switch SW2
LCD contrast knob
DS-NET terminal block
Computer
inspection tool
connector
Water
flowmeter
connector

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No. S827-089-0917
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LCD contrast knob
•If the LCD screen is hard to see, turn this knob to adjust the contrast.
DIP switches
•The functions of DIP switches 1 and 2 are shown in the tables below.
 SW1-1: Turn ON to change the control data settings or to check operations for maintenance. When
ON, the buzzer sounds intermittently to indicate that the system is in the maintenance mode. If
no operation is performed for 10 minutes, the maintenance mode is disabled and the system
forcibly reverts to the user mode.
 SW1-2: When ON, all LCD screen items are displayed in English.
 SW1-3: Turn ON only when the equipment model is MW-600U or MW-1000U. Operation with the
switch ON is exclusive for MW-600U and MW-1000U. When the equipment model is MW-35U,
MW-65U, MW-100U, MW-150U, MW-250U, or MW-400U, turn OFF this switch. (The setting
has been made before shipment.)
*To change the setting, turn ON or OFF the SW1-3 and reset the microcomputer (Turn OFF
→ ON → OFF the SW2-3). When the above operation is performed, setting for the model
and Regeneration starting time are initialized and this requires each item to be set again.
< Default value >
・SW1-3 is OFF [Model MW-22J ,Regeneration starting time : 2:00]
・SW1-3 is ON [Model MW-200J ,Regeneration starting time : 24:00※]
※In the programs up to ROM Ver. MG 111700, the regeneration starting time is
initialized to 2:00
 SW2-1: To initialize all setting data and system internal data, turn ON this switch and perform the reset
operation. This status remains enabled for only 30 seconds after this switch is turned ON.
 SW2-2: To initialize system internal data while maintaining the setting data, turn ON this switch and
perform the reset operation. This status remains enabled for only 30 seconds after this switch
is turned ON.
*After confirming that SW2-1 is OFF, perform the operation. When both SW2-1 and SW2-2 are
ON, All clear is to be performed.
SWITCH NO.
FUNCTION
OFF
ON
SW1-1
Maintenance switch
OFF
Maintenance mode
SW1-2
Select language
Japanese
English
SW1-3
Capacity setting
MW-35U to MW-400U
MW-600U and MW-1000U
SW1-4
Not used
Always OFF
SW1-5
SW1-6
SW1-7
SW1-8
SWITCH NO.
FUNCTION
OFF
ON
SW2-1
All clear
Disable
Enable
SW2-2
Memory clear
Disable
Enable
SW2-3
Reset
OFF
Reset
Table 1.1: DIP Switch SW1
Table 1.2: DIP Switch SW2

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No. S827-089-0917
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 SW2-3: Turn OFF → ON → OFF to reset the microcomputer.
[Caution] Do not inadvertently use All clear or Memory clear to clear alarms. This may cause the
system to malfunction.

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No. S827-089-0917
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1.5 Flow Sheet
1.5.1 MW-35U, MW-65U
No2 unit
No.1 unit
Regeneration drain
Backwashvalve
Water supply valve1
Bypass valve
Watersupplyvalve2
Injector valve
Fast rinse valve
Regeneration drain valve
Brine valve
Raw water
15
Drain
Regeneration drain outlet
φ15×φ19 HOSE
1
1
2
2
3
4
6
5
7
8
8
9
10
11
12
13
14
18
No. PART NAME
1
2Resin tank
3Brine tank assembly
4Y-type strainer
5Raw water pressure swich
6Pressure gauge
7Maintenance valve(Injector Line)
8Bypass valve assembly
9Water sampling port
10 Water flowmeter
No. PART NAME
11 Brine flowmeter
12 Brine valve assembly
13 Salt concentration switch
14 Flow control valve
15 Pressure reducing valve
16 Check valve
18 Colormetry for hardness
19 Gate valve Raw water inlet
1"
Injector strainer
ＥＬＦＣ
Injector nozzle･throat
ＤＬＦＣ
ＥＬＦＣ
ＤＬＦＣ
PG
PS
19
Control valve assembly
Note 1: The water softener main units and accessories are given
in the .
2: No. 15–No. 20 are to be procured separately as needed.
3: No. 15 is required in cases where the raw water pressure
exceeds 71 psi.For additional protection, the use of No.20
along with No.15 is recommended.
4: No. 16 is required in cases where a heat recovery tank is
provided in the secondary unit of the water softener.
5: No. 18 is required for cleaning No. 4 “Y-type strainer.”
Backwashvalve
Water supply valve1
Bypass valve
Injector valve
Fast rinse valve
Brine valve
Injector strainer
Injector nozzle･throat
Watersupplyvalve2
Regeneration drain valve
Softened water
Softened water outlet
1"
16
17 Colormetry for raw water hardness
7
Drain
17
Relief valve
drain
20
20 Relief valve
7
7
7
7

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No. S827-089-0917
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1.5.2 MW-100U,MW-150U, MW-250U, and MW-400U
No. 1 unit
No. 2 unit
PS
Softened water
Raw water
NO. PART NAME
1Control valve assembly
2Resin tank
3Brine tank assembly
4Y-type strainer
5Raw water pressure switch
6Pressure gauge
7Maintenance valve (Injector line)
8Gate valve on inlet side
9Gate valve on outlet side
10 Bypass gate valve
NO. PART NAME
11 Water sampling port
12 Water flowmeter
13 Brine flowmeter
14 Brine valve assembly
15 Salt concentration switch
16 Flow control valve
17 Pressure reducing valve
18 Check valve
20 Colormetry for hardness
21 Gate valve
Backwashvalve
Water supply valve 2
Bypass valve
Watersupply
valve1
Injector
valve
Fast rinse valve
Regenerationdrainvalve
Brine valve
Backwashvalve
Water supply valve 2
Bypass valve
Watersupply
valve1
Injector
valve
Fast rinse valve
Regenerationdrainvalve
Brine valve
Drain
20
Regeneration drain
Regeneration drain outlet
1"
Softened water outlet
MW-100U:1-1/4”
MW-150U –400U:1-1/2"
Raw water inlet
MW-100U:1-1/4”
MW-150U –400U:1-1/2”
1
1
2
2
3
4
5
8
9
10
8
9
10
12
13
14
15
16
18
17
DLFC
DLFC
Injector
strainer
ELFC
Injector
nozzle throat
Injector
strainer
ELFC
Injector
nozzle throat 7
PG
21
6
11
Note 1: The water softener main units and accessories are given
in the .
2: No. 17–No. 22 are to be procured separately as needed.
3: No. 17 is required in cases where the raw water pressure
exceeds 71 psi.For additional protection, the use of No.22
along with No.17 is recommended.
4: No. 18 is required in cases where a heat recovery tank is
provided in the secondary unit of the water softener.
5: No. 20 is required for cleaning No. 4 “Y-type strainer.”
19 Colormetry for raw water hardness
Drain
19
Relief valve
drain
22
22 Relief valve
7
7
7
7

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No. S827-089-0917
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1.5.3 MW-600U and MW-1000U
PG
PS
Regeneration
drain water
Soft water
Raw water
No.1 Unit
Backwash
valve
Water supply valve 1
Bypass
valve
Water
supply
valve 2
Fast rinse
valve
Regeneration
drain valve
Brine valve
Ejector
valve 1
M M
M
M
M
M
M
M
M
Regeneration
drain water
No.2 Unit
M M
M
M
M
M
M
M
Note 1: The water softener main units and accessories are given in the
2: Diameters of pipes at inlet/outlet of the system are as follows: MW-600U --- 21/2” CLASS150 PVC flange MW-1000U ---3” CLASS150 PVC flange 3: No. 18–No. 22 are to be procured separately as needed.
4:No. 18 is required in cases where the raw water pressure exceeds 71 PSI.For additional protection, the use of No.22 along with No.18 is recommended.
5: No. 19 is required in cases where a heat recovery tank is installed
at the secondary side of the water softener.
Mark Part name
1 Control valve assembly 2 Resin cylinder 3 Brine tank assembly 4 Strainer 5 Raw water pressure switch 6 Pressure gauge 7 Maintenance valve (with strainer) 8 Reduction valve (ejector line) 9 Inlet valve
10 Outlet valve
1Inside
dotted line
2 2
3
14
15
16
4
5
6
7
9
10
9
11
1
12 12
13 17
Regeneration drain
water outlet 2"
19
18
Drain water
Ejector
valve 2
Ejector nozzle throat
M
ＤＬＦＣ
ＤＬＦＣ
ＤＬＦＣ
ＤＬＦＣ
[1] [2] [3]
[4]
[5]
[6]
[7] [8] [9]
Valve No. [1]
[2] [3]
[4]
[5]
[6]
[7] [8] [9]
8
11 Bypass valve
11
7
8
10
Mark Part name
12 Drain valve 13 Water flowmeter 14 Brine flowmeter 15 Brine flowmeter assembly 16 Salt concentration switch 17 Flow control valve 18 Pressure reducing valve 19 Check valve 20 Colormetry for raw water hardness
21
4
Regeneration drain
water outlet 2"
Inside dotted line
Valve No.
Backwash
valve
Bypass
valve
Fast rinse
valve
Regeneration
drain valve
Brine valve
Ejector
valve 1 Ejector
valve 2
Ejector nozzle throat
Water supply valve 1
Water
supply
valve 2
Drain water
20
21 Colormetry for hardness
Relief valve drain
22
22 Relief valve
7
7
7
7

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No. S827-089-0917
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0. Reset Start
3.1 Operation Setting 2
[[Setting_2]_____]
3.3.1 MW Communicarion ID
[S:MW_COM_ID___00]
3.4.1 CMU-H Communicarion ID
[S:CMU-H_COM_ID00]
3.5.1 CMU-G Communicarion ID
[S:CMU-G_COM_ID00]
3.6.1 Communication ID of Feed
Water Control Device
[S:F-WTR_COM_ID00]
3.7.1 Type
[S:Type__MW-150__]
3.8.1 Regeneration Level
[S:RGN_Level__120]
1.1 Device Status
[1:SRVC__2:BKWASH] 2.1 Operation Setting 1
[[Setting_1]_____]
2.3.1 Regeneration Starting Time
[S:Start_RGNhh:mm]
2.4.1 Regeneration Interval
[S:RNG INTRVL999h]
2.5.1 Buzzer-ON Time
[S:Bｚ-ON____hh:mm]
2.6.1Buzzer-OFF Time
[S:Bｚ-OFF___hh:mm]
2.7.1 Raw Water Hardness
[S:Hardness___060]
4.1 Check Input & Output
[[Input/Output]__]
4.2 Input 1
[I1:0000_000_0000]
4.3 Input 2
[I2:0000_000_0000]
4.4 Input 3
[I3:BFM_xx.ｘL/min]
4.5 Output 1
[O1:0000_000_0000]
8.1 Manual CV Reset
[[MANL_CV_Reset]_]
1.2.1 Current Date and Time
[_YY/MM/DD_hh:mm_]
1.5 Details of No.1 Unit 1
[1:SRVC__xx.xm3/h]
1.6 Details of No.1 Unit 2
[1:Residual_100%_]
1.8 Details of No.2 Unit 2
[2:Residual_100%_]
Buzzer-ON
Time
0 to 23
Buzzer-ON
Time
24 or 25
0.1 Display ROM Ver.
[MW__Ver.MG111010]
2.8.1 Maximum Daily Flow
[S:MAX____9999.9ｔ]
5.1 Check Alarm History
(With Alarm History)
[[Alarm_History]_]
5.2.1 Alarm History 1: Display Details
[HSTRY_01:A200-09]
5.3.1 Alarm History 2: Display Details
[HSTRY_01:C210-01]
5.x.1 Alarm History x: Display Details
[HSTRY_xｘ:F530-17]
5.0 Check Alarm History
(No Alarm History)
[No_Alarm_History]
3.11.1 Salt Refill
[S:SLT_RFLL______]
Mode
→
Item
↑
Item
↑
Item
↑
Item
↑
1.7 Details of No.2 Unit 1
[2:BKWASH__000min]
Item
↑
Item
↑
Item
↑
Item
↑
+
Item
↑
Item
↑
Item
↑
Item
↑
DIPSW
1-1 ON
Item
↑
Item
↑
Item
↑
Item
↑
Item
↑
Item
↑
Item
↑
Item
↑
Item
↑
Item
↑
Item
↑
Item
↑
Item
↑
Item
↑
Item
↑
Item
↑
Item
↑
10.2.1 Display Alarm 1
[AL01:____A200-09]
10.1 Check Alarm
[No_Alarm________]
10.3 End Alarm Check
[End_Alarm_Check_]
Stop
Buzzer
Stop
Buzzer
Stop
Buzzer
11.1 Display Unidentified Alarm
[Alarm:___A200-09]
3.9.1 Water Flowmeter
[S:FM__999999ml/P]
Item
↑
3.10.1 Brine Flowmeter
[S:BFM_99.999ml/P]
Item
↑
6.1 Maintenance Data
[[MAINT_Data]____]
6.2 Total Volume of Water Flow
[Total___9999999ｔ]
6.3 No.1 Unit: Total Volume of
Water Flow
[1:Total_9999999ｔ]
6.4 No.2 Unit: Total Volume of
Water Flow
[2:Total_9999999ｔ]
6.6.1 No.2 Unit: Water Flow Volume
After Replacement of Resin
[2:AFTR___999999ｔ]
Item
↑
Item
↑
Item
↑
Item
↑
Item
↑
6.5.1 No.1 Unit: Water Flow Volume
After Replacement of Resin
[1:AFTR___999999ｔ]
Item
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7.1 Maintenance Manual Regeneration
[[MAINT MANL RGN]]
7.2.1 No.1 Unit: Manual Regeneration
[1:MNL_RGN_SRVC__]
7.3.1 No.2 Unit: Manual Regeneration
[2:MNL_RGN_BKWASH]
Item
↑
Item
↑
8.2.1 No.1 Unit: Manual CV Reset
[1:MANL_CV_Reset_]
8.3.1 No.2 Unit: Manual CV Reset
[2:MANL_CV_Reset_]
Item
↑
Item
↑
Stop
Buzzer
2.10.1 Low Water Level Alarm contact
[S:Low-W_Level_NO]
2.11.1 Online Maintenance
[S:Online_MAINT_Y]
2.2.1 Date of Update Setting
[S:UpdateYY/MM/DD]
1.3 Instantaneous Flow Rate
[SRVC____xx.xm3/h]
Item
↑
1.4 Residual Capacity
[Residual___100%_]
Item
↑
+
DIPSW
1-1 ON Item
↑
Item
↑
Item
↑
Item
↑
3.2.1 Date of Update Setting
[S:UpdateYY/MM/DD]
Item
↑
5.y.1 Finished Alarm History
[End_____MG111010]
Item
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Item
↑
Item
↑Item
↑
2.9.1 System of Units
[S:Unit______SI__]
Item
↑
9.2.1 Manual Regeneration
Booking Precaution
[Other_Unit:_RGN_]
[Inhibit RGN:_ON_]
[RGN_Interlock___]
[Water_Passing:ON]
Manual
Regen.
9.1.1 Manual Regeneration
[P&H:_Start_RGN__] 9.2.2 Book Manual Regeneration
[P&H:_Book_RGN___] 9.3 Deny Manual Regeneration
[RGN_Denied______]
9.1.2 Accept Manual
Regeneration Starting
[RGN_Accepted____]
9.2.3 Accept Manual
Regeneration Book
[RGN_Booked______]
Manual
Regen.
Manual
Regen.
Mode
→
Mode
→
Mode
→
Mode
→
Mode
→
User Mode Setting Mode 1
Mode
→Setting Mode 2 Ｉ／Ｏ Mode Alarm History Mode Maitenance Date Mode Maintenance Manual
Regeneration Mode Manual CV Reset
Mode
Stop
Buzzer
CV RESET···································RESET SERVICE-STANDBY ················· S-STBY SERVICE ··································· SRVC BACKWASH ······························ BKWASH REGENERATION-STANDBY····· R-STBY BRINE ·········································BRINE SLOW RINSE ···························· SL-RNS FAST RINSE ····························· FS-RNS REFILL ······································ REFILL FAIL ··········································· FAIL
2. LCD Display and Settings
2.1 Operation and Display Flowchart
Figure 2.1 shows the overall flow of the operations and displays.
Figure 2.1: Operation Display Flowchart

MIURA_CONFIDENTIAL
No. S827-089-0917
15
2.2 Details of Each Mode
2.2.1 Display when Powering Up
After powering up, the LCD backlight lights and the buzzer sounds. After the ROM version is displayed
for 2 seconds, the display reverts to the user mode top screen.
2.2.2 User Mode
This mode displays the MW status. The displayed items are listed in Table 2.1.
Press the button to switch the items.
*See “1.4 Names and Functions of Operated Parts on CPU Board” on page 8 for details about turning
ON the maintenance switch.
Table 2.1: Data Displayed in User Mode
NO.
ITEM
SAMPLE DISPLAY
DESCRIPTION
(1)
Water
Softener
Status
1:SRVC__2:BKWASH
Displays the operating process of each unit. “1:” indicates No.1 unit, “2:”
indicates No.2 unit. The processes following “1:” and “2:” are shown in
Table 2.2.
(2)
Current Date
and Time
_09/10/01_13:30_
Displays the current date and time. YY/MM/DD_HH:MM
(3)
Instantaneou
s Flow
SRVC____40.0gpm
Displays the equipment instantaneous feed water flow. “—” is displayed if
the flowmeter has failed.
*Not displayed if the maintenance switch is ON.
(4)
Residual
Capacity
Residual____80%_
Displays residual capacity of the water supply unit as a percentage (%).
Value displayed in parentheses () if an error occurred during the previous
regeneration or a power failure occurred during the Service process.
*Not displayed if the maintenance switch is ON.
(5)
Details of
No .1 Unit
1:SRVC__40.0gpm
Displays the No.1 unit process and status. The processes following “1:” are
shown in Table 2.2.
*Displayed if the maintenance switch is ON.
(6)
No. 1 Unit
Residual
Capacity
1:Residual__80%_
Displays residual capacity of the No. 1 unit as a percentage (%). Value
displayed in parentheses () if an error occurred during the previous
regeneration or a power failure occurred during the Service process.
*Displayed if the maintenance switch is ON.
(7)
Details of
No.2 Unit
2:BKWASH___10min
Displays the No.2 unit process and status. The processes following “2:” are
shown in Table 2.2.
*Displayed if the maintenance switch is ON.
(8)
No. 2 Unit
Residual
Capacity
2:Residual___0%_
Displays residual capacity of the No. 2 unit as a percentage (%).Value
displayed in parentheses () if an error occurred during the previous
regeneration or a power failure occurred during the Service process.
*Displayed if the maintenance switch is ON.
Setting the Current Date and Time
1) Press the button while the current date
and time are displayed.
→A flashing cursor appears.
2) Press the button.
→The numeral at the flashing cursor position
increases by one.
3) Press the button.
→The flashing cursor moves one character
to the right.
4) Press the button.
→The flashing cursor disappears, and the
current date and time are set.
Figure 2.2: Changing Current Date and Time
08/06/02 01:36
S:08/06/02 01:36
Press “Set/OK” button.
(Flashing cursor appears)
S:09/06/02 01:36
Press “Item” button.
(Numeral changes)
S:09/06/02 01:36
Press “Set/OK” button.
(Current date and time set)
S:09/06/02 01:36
Press “Mode”
button.
(Cursor moves)
Press “Set/OK”
button.
(Current date
and time set)
Procedures for Changing the Current Date and Time
Item
↑
Set/OK
Mode
→
Set/OK
Item
↑

MIURA_CONFIDENTIAL
No. S827-089-0917
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Table 2.2: Operating Processes and Displays
PROCESS
LCD SCREEN
DISPLAY
DETAILS OF NO.1/2
UNIT
DESCRIPTION
Service Standby
S-STBY
S-STBY
Service Standby → Service
Transition
SRVC
SRVC
Displayed flashing.
Service
SRVC
SRVC xxx.xgpm
Displays the instantaneous flow rate. “—”
is displayed if the flowmeter has failed.
*In maintenance mode, value is displayed
if flowmeter has failed.
Service → Backwash Transition
BKWASH
BKWASH
Displayed flashing.
Backwash
BKWASH
BKWASH xxmin
Displays the remaining process time.
Value flashes when regeneration is
stopped.
Backwash → Regeneration
Standby Transition
R-STBY
R-STBY
Displayed flashing.
Regeneration Standby
R-STBY
R-STBY xxxxmin
Displays the remaining process time
(remaining interlock time).
Regeneration Standby → Brine
Transition
BRINE
BRINE
Displayed flashing.
Brine
BRINE
BRINE xxx.xgal
Counts down the total brine suction flow.
Value flashes when regeneration is
stopped.
Brine → Slow Rinse Transition
SL-RNS
SL-RNS
Displayed flashing.
Slow Rinse
SL-RNS
SL-RNS xxmin
Displays the remaining process time.
Value flashes when regeneration is
stopped.
Slow Rinse → Brine 2 Transition
*MW-600U and MW-1000U only
BRINE*
BRINE*
Displayed flashing.
Brine 2
*MW-600U and MW-1000U only
BRINE*
BRINE* xxx.xgal
Counts down the total brine suction flow.
Value flashes when regeneration is
stopped.
Brine 2 → Slow Rinse 2 Transition
*MW-600U and MW-1000U only
S-RNS*
S-RNS*
Displayed flashing.
Slow Rinse 2
*MW-600U and MW-1000U only
S-RNS*
S-RNS* xxmin
Displays the remaining process time.
Value flashes when regeneration is
stopped.
Slow Rinse → Fast Rinse
Transition
FS-RNS
FS-RNS
Displayed flashing.
Slow Rinse 2 → Fast Rinse
Transition
*MW-600U and MW-1000U only
Fast Rinse
FS-RNS
FS-RNS xxmin
Displays the remaining process time.
Value flashes when regeneration is
stopped.
Fast Rinse → Refill Transition
REFILL
REFILL
Displayed flashing.
Refill
REFILL
REFILL xxx.xgal
Counts the total refill flow. Value flashes
when regeneration is stopped.
Refill → Service Standby
Transition
S-STBY
S-STBY
Displayed flashing.
Unit Failure
FAIL
FAIL
Process when the unit has failed.
Control Valve Position Reset
RESET
RESET
Displayed flashing. Process when reset
recovery or manual reset of control valve
position is performed.

MIURA_CONFIDENTIAL
No. S827-089-0917
17
2.2.3 Setting Modes
These modes display information required for MW operation. The operations are divided into Setting
Mode 1 (Table 2.3) and Setting Mode 2 (Table 2.4).
Press the button to switch the items. For details about changing the settings, see “Setting the
Current Date and Time” on page 15.
Table 2.3: Displayed Data in Setting Mode 1
NO.
ITEM
SAMPLE DISPLAY
SET RANGE
DEFAULT
(1)
Date of Update
S:Update09/10/01
00/01/01 – 99/12/31
00/01/01
(2)
Regeneration Starting
Time
S:Start_RGN02:00
00:00 – 23:59, 24:00
02:00 or 24:00
(3)
Regeneration Interval
S:RGN_INTRVL008h
0 – 250
12
(4)
Buzzer ON Time
S:Bz-ON____00:00
00:00 – 23:59
ALWYON, ALWYOFF
ALWYON
(5)
Buzzer OFF Time
S:Bz-OFF___00:00
00:00 – 23:59
00:00
(6)
Raw Water Hardness
S:Hardness___060
1 – 500
60
(7)
Maximum Daily Flow
S:MAX__396200gal
100 – 396258
2500
(8)
System of Units
S:Unit______SI__
SI, U.S.
SI
(9)
Low Water Level
Alarm Contact
S:Low-W_Level_NO
NO, NC
NO
(10)
Online Maintenance
Notification
S:Online_MAINT_N
Y, N
N
(1) Date of Update:
Enter the date when the settings were changed. This item is used to confirm the
maintenance history. It does not affect the control. It is linked to the same item in
Setting Mode 2. Changing one of these items automatically changes the other.
(2) Regeneration
Starting Time:
Sets the regeneration starting time for single-unit regeneration based on time and
flow rate or for single-unit regeneration based on time when one unit has failed.
Setting the start time to “24:00” stops regeneration from starting when only one
unit is operating.
(Regeneration starting time of MW-600U-1000U after ROM Ver.MG111710 has been set to
“24:00” at shipment.)
Model Program ver Default value
MW-35U to 400U ALL ver 2:00
Prior to MG111700 2:00
After MG111710 24:00
MW-600U,1000U
[Caution]
•In the case of the MW-600U and the MW-1000U, water bypass does not occur in the control valve
during regeneration. If one unit fails, the water flow may stop in the failed unit.
If the water flow stops in the failed unit and the other normal unit enters the regeneration process, the
water flow stops completely. Therefore, be careful when changing the regeneration starting time setting.
*If regeneration is to be performed, it is necessary to set a time zone during which stopping of the
water flow does not pose any problems.
Setting the regeneration starting time to “24:00” prohibits regeneration. However, if the water flow
continues and the residual capacity becomes zero, hardness leakage will occur.
•In the case of the MW-35U, MW-65U, NW-100U, MW-150U, MW-250U, and MW-400U, water bypass
occurs in the control valve during regeneration. Even if one unit fails and the other normal unit enters
the regeneration process, the water flow continues. However, raw water is supplied to the secondary
side.
Item
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