q
w
e
t
r
y
u
i
o
!0
!1
!2
!3
!4
!5
!6
Operation Display Panel
The basic operation of this unit is controlled through the
operation display panel on the front of the product.
Alarm
This unit has 39 types of alarms as standard, and displays each of them by its alarm code on the PV screen with the [ALARM] lamp ([LOW LEVEL] lamp) lit
up on the operation display panel. The alarm can be read out through communication.
Code
Alarm message
AL01
Low level in tank
AL02
High circulating fluid discharge temp.
AL03
Circulating fluid discharge temp. rise
AL04
Circulating fluid discharge temp. drop
AL05
High circulating fluid return temp.
AL08
Circulating fluid discharge pressure rise
AL09
Circulating fluid discharge pressure drop
AL10
High compressor intake temp.
AL11
Low compressor intake temp.
AL12
Low super heat temp.
AL13
High compressor discharge pressure
AL15
Refrigeration circuit pressure (high pressure side) drop
AL16
Refrigeration circuit pressure (low pressure side) rise
Code
Alarm message
AL17
Refrigeration circuit pressure (low pressure side) drop
AL18
Compressor running failure
AL19
Communication error
AL20
Memory error
AL21
DC line fuse cut
AL22
Circulating fluid discharge temp. sensor failure
AL23
Circulating fluid return temp. sensor failure
AL24
Compressor intake temp. sensor failure
AL25
Circulating fluid discharge pressure sensor failure
AL26
Compressor discharge pressure sensor failure
AL27
Compressor intake pressure sensor failure
AL28
Pump maintenance
AL29
Fan maintenance
List of Function
Code
Alarm message
AL30
Compressor maintenance
AL31
Contact input 1 signal detection
AL32
Contact input 2 signal detection
AL37
Compressor discharge temp. sensor failure
AL38
Compressor discharge temp. rise
AL40
Dustproof filter maintenance
AL41
Power stoppage
AL42
Compressor waiting
AL43
Fan failure
AL45
Compressor over current
AL47
Pump over current
AL50
Incorrect phase error
AL51
Phase board over current
No.
Description
Function
q
Digital display
(7-segment,
4 digits)
PV Displays the circulating fluid current discharge temperature
and pressure and alarm codes and other menu items (codes).
SV Displays the circulating fluid discharge temperature
and the set values of other menus.
w
[
°
C] [
°
F] lamp Equipped with a unit conversion function. Displays the
unit of displayed temperature (default setting:
°
C).
e
[MPa] [PSI]
lamp
Equipped with a unit conversion function. Displays the
unit of displayed pressure (default setting: MPa).
r
[REMOTE]
lamp
Enables remote operation (star t and stop) by
communication. Lights up during remote operation.
t
[RUN] lamp
Lights up when the product is started, and goes off when
it is stopped. Flashes during stand-by for stop or anti-
freezing function, or independent operation of the pump.
y
[ALARM] lamp Flashes with buzzer when alarm occurs.
u
[
] lamp
Lights up when the surface of the fluid level indicator falls below the L level.
i
[
] lamp
Equipped with a timer for start and stop. Lights up
when this function is operated.
o
[
] lamp
Equipped with a power failure auto-restart function, which
restarts the product automatically after stopped due to a
power failure. Lights up when this function is operated.
!0
[RUN/STOP] key Makes the product start or stop.
!1
[MENU] key
Shifts the main menu (display screen of circulating fluid discharge temperature
and pressure) and other menus (for monitoring and entry of set values).
!2
[SEL] key
Changes the item in menu and enters the set value.
!3
[
] key
Decreases the set value.
!4
[
] key
Increases the set value.
!5
[PUMP] key
Press the [MENU] and [RUN/STOP] keys simultaneously. The pump starts
running independently to make the product ready for start-up (release the air).
!6
[RESET] key Press the [
] and [
] keys simultaneously. The alarm
buzzer is stopped and the [ALARM] lamp is reset.
No.
Function
Outline
1 Main display
Displays the current and set temperature of the
circulating fluid, discharge pressure of the circulating
fluid. Changes the circulating fluid set temperature.
2 Alarm display menu Indicates alarm number when an alarm occurs.
3 Inspection
monitor menu
Product temperature, pressure and accumulated
operating time can be checked as daily inspection.
Use these for daily inspection.
4 Key-lock
Keys can be locked so that set values cannot be
changed by operator error.
5 Timer for operation
start/stop
Timer is used to set the operation start/stop.
6
Signal for the
completion of
preparation
A signal is output when the circulating fluid
temperature reaches the set temperature, when
using contact input/output and serial communication.
7 Offset function Use this function when there is a temperature offset between the
discharge temperature of the thermo-chiller and user’s equipment.
8 Reset after
power failure
Start operation automatically after the power supply
is turned on.
9 Key click
sound setting Operation panel key sound can be set on/off.
10 Changing
temp. unit
Temperature unit can be changed.
Centigrade (
°
C)
⇔
Fahrenheit (
°
F)
11 Changing
pressure unit
Pressure unit can be changed.
MPa
⇔
PSI
12 Data reset
Functions can be reset to the default settings
(settings when shipped from the factory).
13 Accumulation
time reset
Reset function when the pump, the fan or the compressor
is replaced. Reset the accumulated time here.
14 Anti-freezing
function
Circulating fluid is protected from freezing during winter
or at night. Set beforehand if there is a risk of freezing.
15 Warming-up
function
When circulating fluid temperature rising time at starting
needs shortening during winter or at night, set beforehand.
16
Anti-snow
coverage
function
If there will be a possibility of the snow coverage
due to the change of the installation environment
(season, weather), set beforehand.
17 Alarm buzzer
sound setting Alarm sound can be set to on/off.
18 Alarm
customizing
Operation during alarm condition and threshold
values can be changed depending on the alarm type.
19 Communication This function is used for contact input/output or
serial communication.
For details, refer to the Operation Manual. Please download it via our website, https://www.smcworld.com
3
HRS200
Series
Standard Type
