Daikin AKZ8 Series, Instruction Manual

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27
Useful Functions
Handling
Outlet oil temperature [Th2] or Inlet oil temperature [Th4]
Room temperature
[Th3]
or
Machine temperature
[Th5]
: Oil Cooling Unit operating range
: Temperature range warning setting
5 10
15
20 25 30
35
40 45 50
5
10
15
20
25
30
35
40
45
50
( ˚C )
( ˚C )
5 ˚C
(1)
5 ˚C
(2)
(3)
(4)
Setting Additional Function
—“Temperature range warning”
n
Outline of the function
• As an additional function of the Oil Cooling Unit, you can set up the “ Temperature range warning ” function.
This function allows you to specify a desired temperature range within the Oil Cooling Unit operating range. When the control
temperature exceeds the preset range, the unit informs you of the “Temperature range warning” condition.
• The “Temperature range warning” function provides the following settings:
1) External output (30X relay output: ON): Turns ON/OFF the contact (66, 67) of the signal terminal block.
(See the output logic on page .)
2) Compressor forced stop—Warning: Stops the compressor. (Indication: 1E to 5E)
Warning status will be automatically reset when preset warning reset temperature is
reached.
3) Alarm stop—“FH” alarm: Stops the compressor. (Indication: FH)
(See “Alarm output logic” on page .)
The warning reset setting is inactive. (When the power supply is turned ON again, the
compressor restarts operation.)
∗
The above 1), 2) and 3) can be combined.
n
Parameter setting
To enable this function, set the corresponding parameters. You can specify up to five warning conditions with the following five
groups of parameters.
∗
For temperature range warning, the above (1) to (5) types are available. Actually, however, any combinations of these types are enabled.
The above (1) to (5) types can be simultaneously used.
(1) When the outlet oil temperature [Th2] (or inlet oil
temperature [Th4]) is 15˚C or lower, the compressor stops.
(Warning)
(2) When the outlet oil temperature [Th2] (or inlet oil
temperature [Th4]) is 35˚C or higher, the compressor stops
(FH alarm), and the 30X relay output turns ON.
(3) When the outlet oil temperature [Th2] (or inlet oil
temperature [Th4]) is at least 5˚C lower than the room
temperature [Th3] (or machine temperature [Th5]), the
30X relay output turns ON.
(4) When the outlet oil temperature [Th2] (or inlet oil
temperature [Th4]) is at least 5˚C higher than the room
temperature [Th3] (or machine temperature [Th5]), the
30X relay output turns ON.
Group A: “Temperature range warning condition setting”
“Temperature range warning operation setting”
Group B: “Temperature range warning temperature setting”
“Temperature range warning reset temperature
setting”
Application of temperature range warning
Types of temperature range warning
∗
(1)
(2)
(3)
(4)
(5)
Parameter
Group A Group B
Low oil temperature (Fixed temperature)
High oil temperature (Fixed temperature)
Low oil temperature (Temperature difference)
High oil temperature (Temperature difference)
Reserve
n10
n12
n14
n16
n18
n11
n13
n15
n17
n19
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