CAIROX ST2R4-15L55 Instructions De Montage

D
A B
E
ST2R4-15L55
300 325 150 255 255
ST2R4-25L55 300 325 150 255 255
ST2R4-40L55 300 425 200 255 255
ST2R4-60L55 400 430 200 355 355
ST2R4-80L55
400 430 200 355 355
ST2R4110L55 400 430 200 355 355
According to
the low voltage
directive:
2006/95/EC /
the EMC directive:
2004/108/EC
CC CC OC OC
Ribbon connector
C D E net weight gross weight
12,15 kg 12,61 kg
13,23 kg 13,69 kg
19,98 kg 20,57 kg
25,02 kg 25,80 kg
29,67 kg 30,45 kg
36,27 kg 37,05 kg
MOUNTING INSTRUC TIONS
EN
Speed controller for three phase voltage controllable motors
Technical data
Voltage: 400 Vac - 50/60 Hz
Imax (A)
ST2R4-15L55: 1.5
ST2R4-25L55: 2.5
ST2R4-40L55: 4.0
ST2R4-60L55: 6.0
ST2R4-80L55: 8.0
ST2R4110L55: 11.0
Enclosure: sheet steel
The ST2R4 transformer speed controllers are based on the prin-
ciple of voltage control with auto-transformers. They are appli-
the rotational speed (of fans, pumps, etc.). With the built-in
clock these transformer controllers can work completely auto-
nomously. When commissioning, two speeds (High and Low)
can be selec
High and Low speed operation time ranges can be set in the
clock together with a range of motor stop (day/week program).
Thus a perfect e.g. day/night control is permitted.
Mounting
The controllers are to be mounted vertically on a smooth sur-
face. Connect voltage supply, motor(s) and earth as shown in
the scheme with cables of the proper diameter and in accord-
ance with local regulations. On the mains side, a safety switch
with recommended pre-fuses has to be installed.
Wiring diagram
R main supply 400Vac – 50/60 Hz
S main supply 400Vac – 50/60 Hz
T main supply 400Vac – 50/60 Hz
N neutral
L1 unregulated output 230 Vac
U regulated output to motor
V regulated output to motor
W regulated output to motor
TK thermal Contact
N neutral
Al output to alarm 230Vac
CC room thermostat (contact normally closed)
OC frost protection (contact normally open)
Pe earth
Operation working modes of the controller
The ST2R controller has four basic modes. Each mode is displa-
yed on the LCD.
< STAND-BY: motor is not working (due to clock setting)
< STOPPED: motor is not working (the controller is stopped
by pressing I/O button or TK alarm condition occurred)
< AUTO: motor speed depends on the RTC (High Mode/Low
Mode/Standby)
< HAND SETTING: controller enters High mode by pressing
UP button and enters Low mode by pressing DOWN
button.
Changing the mode of the controller
There are two ways for changing the ST2R mode:
< Changing the mode due to RTC.
< Changing the mode via buttons on the front panel (if user
or installer password is set, the buttons are disabled until
the correct password is typed when prompted).
User code – used to protect change of mode in Hand Setting
mode. Default value is 0000 which means unlocked keypad.
correct to allow changing the mode in Hand Setting mode.
Installer code – used to protect the change of the controller's
state via the buttons (Auto/Stopped/Hand Setting) and Menu
entrance. Default value is 0000 which means unlocked keypad.
correct code to allow changing the state or entering the menu.
After a password (user/installer) has been entered correctly, no
password will be asked for 60 min.
ST2R changes its mode according to the real time clock at pre-
From / To AUTO HAND SETTING STOP STAND-BY
automatically
AUTO A/M I/O
(RTC)
HAND A/M or High/Low
I/O
SETTING change (RTC)
STOP I/O -
STAND-BY automatically (RTC) A/M I/O
Modes changing (keypad is free)
From / To AUTO HAND SETTING STOP STAND-BY
(I/O & automatically
AUTO (A/M & code)
code) (RTC)
(A/M & code) or
HAND (I/O &
High/Low change
SETTING code)
(RTC)
STOP (I/O & code) - (I/O & code)
(I/O &
STAND-BY automatically (RTC) (A/M & code)
code)
Modes changing (keypad is locked)
When powered, the controller enters AUTO mode. In this mode
the user can enter HAND SETTING mode by pushing A/M but-
ton short or can enter Install menu by pushing the A/M button
for 3 seconds.
In HAND SETTING mode you can switch the controller in High
or Low Mode by pressing the UP or DOWN buttons. UP corre-
sponds to High Mode and DOWN corresponds to Low Mode. By
a single press of the A/M button the controller returns in AUTO
mode or when holding the A/M button for 3 seconds the user
can access the Installer menu.
The condition of the controller in AUTO mode depends on the
real time clock settings. By default these settings are:
Monday – Friday Saturday - Sunday
High Set point 08:00 – 18:00 --:--
00:00 – 07:59
Low Set point --:--
19:00 – 23:59
Standby (automati-
18:00 – 18:59 00:00 – 23:59
cally calculated)
User has the ability to change these predetermined values ei-
ther by changing them for the whole weekdays/weekends or
for a particular day (Monday, Tuesday, Wednesday ...). Also there
times from the mentioned above.
Alarm conditions
TK protection - alarm condition, declared with blinking message
on the LCD display "Motor High Temp, Check Motor" and Al out-
put is activated (230 Vac). When the problem is eliminated, the
user must press any button (except the AM button) for at least 5
seconds. Messages on the LCD lead the user through the steps
RTC
I/O
RTC