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Mitsubishi Electric E Series Data Book page 68

Air cooled chilling unit
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5. Wiring Design
(2) Factory Switch Settings (Dip switch settings table)
SW
Function
1
2
3
4
These switches are used for
5
Settings change or
SW1
setting change with push switch
view the settings
6
SWP 1, 2 and 3.
7
8
9
10
1 Model setting
2
System setting
Set the duties to each unit.
3
Selects either the external water
temperature sensor or the built-in
Water-temperature
4
sensor to be used to control
control 1 (option)
water temperature.
(Simultaneous operating group)
Selects target temperature
Water-temperature
5
correction control. (Identical
control 2 (option)
SW2
water system group)
Multiple unit
Selects optimum control of
6
control
number of operating units.
Analog input
Allows or disallows the analog
7
setting
signals from a remote location.
Selects either the water
Analog input
temperature or the capacity
8
signal switching
control ratio. (Effective only
when SW2-7 is set to ON.)
9 BMS setting *
10 Model setting
1
Selects analog input 4-20mA/
0-10V/1-5V/2-10V.
Analog input type
(Effective only when SW2-7 is
setting
2
set to ON and SW3-4 is set to
OFF.)
3
4
5
Model setting
6
7
SW3
8
Enables or disables the
automatic restoration of
Auto restart after
9
operation after power failure
power failure
(in the same mode as the unit
was in before a power failure).
10 Model setting
"-" in the table indicates that the function in the corresponding row will be disabled regardless of the actual switch setting.
The factory setting for these items is OFF.
* Connection to a BMS requires an installation of Procon A1M (Modbus interface), which is available from MITSUBISHI ELECTRIC UK.
Use a BMS with insulation
SW2-7
SW2-8
ON
OFF
ON
ON
OFF
OFF
MEES19K040
Factory setting
Usage
MAIN
SUB
circuit
circuit
OFF
OFF
The 7-segment LED display is changed.
-
-
Leave the setting as it is.
System leader unit
OFF
-
Group leader unit
Sub unit
Built-in sensor on
OFF
-
the unit
OFF
-
OFF
OFF
-
Ineffective
Disallows the
OFF
-
external analog
signals.
OFF
-
Water temperature Capacity control ratio Required Fixed OFF Fixed OFF At a reset
OFF
-
No input from BMS Input from BMS
OFF
OFF
Leave the setting as it is.
4-20mA:
OFF
-
1-5V:
0-10V:
2-10V:
OFF
OFF
Leave the setting as it is.
An alarm will be
issued when
power is restored
after a power
outage.
ON
ON
The alarm will be
reset when the
power is turned off
and then turned
back on.
OFF
OFF
Leave the setting as it is.
SW2-9
Input from BMS
ON
Target temperature
ON
Capacity
ON
Outdoor temperature
OFF setting
ON setting
2 / 3
: ON
ON
: ON
OFF
: OFF OFF
External water
temperature sensor 1
ON
(External water
sensor 2 is required.)
Effective
Allows the external
analog signals.
1
/
2
OFF
OFF
ON
OFF
OFF
ON
ON
ON
Automatically
restores operation
after power failure.
System
Group
SUB
Setting
leader unit
leader unit
module
timing
Depends
Depends
Depends
Depends
on the
on the
on the
on the
setting
setting
setting
setting
-
-
-
At a reset
Required
Required
Required
At a reset
Required
Required
Required
At a reset
Required Fixed OFF Fixed OFF At a reset
Required Fixed OFF Fixed OFF At a reset
Required Fixed OFF Fixed OFF At a reset
Required Fixed OFF Fixed OFF At a reset
Fixed OFF Fixed OFF Fixed OFF Any time
Required Fixed OFF Fixed OFF Any time
Fixed OFF Fixed OFF Fixed OFF Any time
Required
Required
Required
Any time
Fixed OFF Fixed OFF Fixed OFF Any time
67

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