6.3. Controller power supply
Use the pins according to table below, considering the set version:
6.4. Recommendations of IEC60364 standard
a)
Install overload protectors in the controller supply.
b)
Install transient suppressors – suppressor filter RC – in the circuit to increase the service life of the
controller relay. See connection instructions of the filter on the previous page.
c)
The sensor cables may be together, but not in the same conduit where the power supply of the
controller and/or of the loads passes through.
a)
Cut out the panel plate (Image V - item 12) where the controller shall be fastened, with sizes
X = 71±0.5 mm and Y = 29±0.5 mm;
b)
Remove side locks (Image VII - item 12): to do that, compress the central elliptical part (with the Full
Gauge Controls logo) and displace the locks backwards;
c)
Introduce the controller in the notch made on the panel, inwards;
d)
Place the locks again and then displace them until they compress into the panel, fastening the
controller to the housing (see arrow indication in Image VII - item 12);
e)
Perform the electric installation as described in item 6;
f)
Adjust the parameters as described in item 8.
ATTENTION: for installations requiring liquid tight sealing, the notch sizes for the controller
installation should be no more than 70.5x29mm. The side locks should be fastened so that they
press the sealing rubber avoiding infiltration between the notch and the controller.
Protector vinyl - Image VIII (item 12)
It protects the controller when installed at a site subject to water spills, such as refrigerated counters.
This adhesive vinyl is supplied with the instrument in the package.
IMPORTANT: Make the application only after completing the electrical connections.
a)
Retreat the side locks (Image VII - item 12);
b)
Remove the protective film from the adhesive vinyl face;
c)
Apply the vinyl over the entire upper part, bending the flaps, as indicated by the arrows - Image VIII
(item 12);
d)
Reinstall the locks.
NOTE:
The vinyl is transparent, allowing visualization of the wiring system of the instrument.
8.1. Quick Access Menu Map
;
(
Flatec),
8.3.
7. FASTENING PROCEDURE
8. ADJUSTMENT OF THE SETPOINT AND PARAMETERS
By pressing
it is possible to navigate through the function menus. For more details, see
chapter
See the functions map below:
Pins
MT-512E 2HP
MT-512EL 2HP
9 and 10
9 and 11
115 Vac
230 Vac
12 Vac/dc
24 Vac/dc
;
FORCED DEFROST
;
FUNCTIONS LOCKDOWN
;
CONTROL FUNCTIONS
SHUTDOWN
ADJUSTING THE DESIRED
TEMPERATURE (SETPOINT)
;
EXIT FUNCTION
;
FUNCTION SELECTION
;
SHOW CURRENT PROCESS
;
ERASE MIN. AND MAX. VALUES
;
MIN. AND MAX. TEMPERATURE
RECORD
;
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8.3. Basic operations
8.3.1. Adjustment of the Setpoint (desired temperature)
Press the key
/
for 2 seconds until the message
[Set,]
is displayed. Releasing the key will display
the control temperature currently adjusted.
Use the keys
<
or
>
to modify the value and press
/
for recording.
The desired temperature can also be changed by the facilitated menu (see map in item 8.1) or by the
function
[,F02]
: see item 8.4.2.
8.3.2. Manual Defrost
Manual defrost is activated by the facilitated menu. Press the key
;
(short touch) until the message
[defr]
(led
@
flashing) is displayed. Then press the key
/
(short touch) to select. The message
[defr][On,,]
(led
@
on) will be displayed.
In order to disable the manual defrost, press the key
;
(short touch) until the message
[defr]
(led
@
flashing) is displayed. Press the key
/
(short touch) to select. The message
[defr][Off,]
(led
@
off) will be displayed.
The manual defrost process also can be activated/deactivated by pressing the key
<
for 4 seconds.
MT-512
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8.3.3. Function blocking
The activation of function blocking feature allows safety against undue alterations of the Setpoint and of
the other parameters. In this condition, when trying to alter the values, the message
[LOC,]
will be
displayed. However, the parameters can still be seen.
In order to perform the function blocking the parameter
[,F20]
(Time for function blocking) must be
set with the value above 14 (if below 15,
[No,,]
will be displayed, which means function blocking is
prevented).
With the key
;
(short touch), select , then press
/
(short touch), and keep pressing the key
>
until the message
[LOC,]
is displayed.
Releasing the key will display the message
[On,,]
.
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8.3.4. Turning the Control Functions Off
Turning the control functions off will make the controller start operating just as a temperature indicator
and the output relay remains off.
How the operation of turning the control functions off is made shall depend on the parameter
[,F21]
setting (Turning the control functions off).
With the key
;
(short touch), select and then press
/
(short touch) to confirm.
Soon the message
[Ctrl][Off,]
will be displayed and the temperature display will be alternated
with the message
[Off,]
.
For turning the control functions on again, apply the same procedure used for turning off, selecting with
the key
;
(short touch), . When pressing the key
/
the message
[Ctrl][On,,]
will be
displayed.
NOTE: When turning the control functions on again, the
will continue to
respect the functions
[,F09]
(Minimum output-off time) and
[,F12]
(initial status when
powering the instrument on).
Also is possible turn on/ turn off the control functions by pressing the key
;
for 5 seconds.
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8.3.5. Viewing the Processes
For viewing the status and the time elapsed, press
>
(short touch).
The controller will display the current process, which may be with the following messages:
[----]
Control off
[DEL,]
Initial delay
[REFR]
Refrigeration
[HOT,]
Heating
[DEFR]
Defrost
Pressing the key
<
or also by the facilitated menu (see map in item 8.1) the message
[rEg,]
will be
displayed, and then the minimum and maximum temperatures will be recorded.
To delete the current minimum and maximum values, press the key
;
(short touch) until the message
[CrEg]
is displayed. Press the key
/
to confirm.
8.3.7. Selection of Temperature Measurement Unit
For defining the unit with which the instrument will operate enter the function
[,F01]
with access code
231 and press the key
/
. Then, select the unit by pressing the keys
>
or
<
: the units
[,=C,]
or
[,=F,]
will be displayed. Press the key
/
to confirm the selection. The indication corresponding to
the unit (
{
or
}
) will be displayed.
NOTE:
Every time the unit is changed, the parameters should be reset, since they assume the
‘standard’ values of the parameter’s table.
8.3.6. Minimum and Maximum Temperature Recording
8.2. Quick access keys map
When the controller is on temperature display mode, the following keys serve as a shortcut for the
following functions:
Hold down for 2 seconds: setpoint adjustment.
Quick touch: current process display.
Quick touch: maximum and minimum temperatures display (record).
Pressed simultaneously: access to functions selection.
/
<
<
<
<
8.4. Advanced operations
- NOTE 1:
The graph below illustrates the meaning of temperature-related parameters.
- NOTE 2:
The access to all parameters is protected by the access code: see item 8.4.3 (F01).
Refrig.
Heat.
105°C (221°F)
*200°C (392°F)
-50°C (-58°F)
F02
F04
F05
F06
*Only if a silicone sensor
cable is used (SB59)
To unblock, turn the controller off, and then turn it on again with the key
>
pressed. Keep the key
pressed until the message
[LOC,]
is displayed. After releasing it, the message
[OFF,]
will be
displayed.
Hold down for 5 seconds: turn on/turn off the control functions.
;
