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E51
ELECTRONIC
FREEZER
CONTROLLER
OPERATING INSTRUCTIONS
08/06 - code: ISTR_M_E51-_E_01_--
ASCON TECNOLOGIC S.rl.
Viale Indipendenza 56, 27029 - VIGEVANO (PV) ITALY
Tel.: +39 0381 69871 - Fax: +39 0381 698730 http:\\www.ascontecnologic.com
Index
1. Instrument description ............................................... 1
1.1 General description ......................................................... 1
1.2 Front panel pescription ................................................... 2
2. Programming ............................................................... 2
2.1 Fast Set point programming ............................................ 2
2.2 Standard mode parameters programming ...................... 2
2.3 Parameter protection using the password ....................... 2
2.4 Customized mode parameter programming
(parameters programming level) ..................................... 3
2.5 Reset parameters to default value/Level ......................... 3
3. Usage warnings ........................................................... 3
3.1 Admitted use ................................................................... 3
4. Installation warnings ................................................... 3
4.1 Mechanical mounting ...................................................... 3
4.2 Dimensions [mm] ............................................................ 3
4.3 Mounting ......................................................................... 3
4.4 Electrical connections ..................................................... 4
5. Functions ..................................................................... 4
5.1 Measuring and Display Configuration ............................. 4
5.2 Temperature control ........................................................ 4
5.3 Compressor protection function and power-on delay ...... 4
5.4 Defrost control ................................................................. 5
5.5 Temperature Alarms ........................................................ 5
5.6 ON/Standby Function ...................................................... 6
5.7 Keyboard lock function .................................................... 6
6. Programmable parameters table ................................ 6
7. Problems and maintenance ........................................ 7
7.1 Notifications .................................................................... 7
7.2 Cleaning .......................................................................... 7
7.3 Disposal .......................................................................... 7
8. Warranty and Repairs ................................................. 7
9. Technical data .............................................................. 7
9.1 Electrical characteristics ................................................. 7
9.2 Mechanical characteristics .............................................. 7
9.3 Functional features ......................................................... 7
10. How to order ................................................................ 8
PREFACE
D D This manual contains the information necessary for the product to be installed correctly and also instructions for its maintenance and use; we therefore recommend that the utmost attention is paid to the following instructions and to save it.
This document is the exclusive property of Ascon Tecnologic
S.rl. which forbids any reproduction and divulgation, even partially, of the document, unless expressly authorized.
Ascon Tecnologic S.rl. reserves the right to make any formal or functional changes at any moment and without any notice.
Ascon Tecnologic S.rl. and its legal representatives do not assume any responsibility for any damage to people, things or animals deriving from violation, wrong or improper use or in any case not in compliance with the instrument features.
D D Whenever a failure or a malfunction of the device may cause dangerous situations for persons, thing or animals, please remember that the plant has to be equipped with additional electromechanical devices which will guarantee safety.
1. INSTRUMENT DESCRIPTION
1.1 General description
The model E51 is a digital electronic controller that is typically used in cooling applications that have temperature control with ON/OFF mode and defrosting control with intervals time by stopping compressor .
The instrument has 1 relay output and 1 input for PTC or
NTC temperature probes .
Ascon Tecnologic - E51- - OPERATING INSTRUCTIONS - PAG. 1
1.2 Front panel pescription
5
OUT
E51
SET
3
2
1
4
1
2
: Used for setting the Set point (short press) and for programming the function parameters (pressed for 5 s).
In programming mode is used to enter in parameters edit mode and confirm the values. In programming mode can be used together with the key to change the programming level of the parameters. When the keyboard is locked, the keys and used together (hold pressed for 5 s), unlock the keyboard.
/ : In programming mode is used for decreasing the values to be set and for selecting the parameters. In normal mode and if parameter
Fb
= 1 it can be used to turning on and off (stand-by) the device (hold pressed for 1 s).
3 / : In programming mode is used for increasing the values to be set and for selecting the parameters. In normal mode can be used to start/stop manual defrost (hold pressed for 5 s). In programming mode can be used to return in normal mode (hold for 2 s) and to change parameters level (with key ). Pressed together with the key for 5 s allows the keyboard unlock.
4 LED SET: In programming mode indicates the programming level of the parameters. In normal mode it indicates the Stand-by status and blinks when a key is pressed.
5 LED OUT : Indicates the output status (compressor or temperature control device): ON (lit up), OFF (turned
OFF) or inhibited (flashing).
2.2 Standard mode parameters programming
To access the instrument function parameters when password protection is disabled, press the key and keep it pressed for about 5 seconds, after which the display shows the code that identifies the first programmable parameter
The desired parameter can be selected using the / keys, then, pressing the key, the display shows the parameter code alternated to its value that can be changed with the and keys. Once the desired value has been set, press the key again: the new value is stored and the display shows only the code of the selected parameter.
Pressing the and keys, it is possible to select another parameter and change it as described.
To exit the programming mode, press no keys for about 30 s or keep the key pressed for 2 s until the instrument returns in normal mode.
Normal mode
24.5
5 s
Parameter select
(Program mode)
Previous
Param.
Parameters set
Increase value
2 s Ls.
Next
Param.
21.0
Decrease value
2. PROGRAMMING
2.1 Fast Set point programming
Press the key then release it, the display starts showing
SP alternated to the Set Point value.
To change the SP value press the key to increase and to decrease it.
/ keys increase or decrease the value one digit at a time, but if the button is pressed for more than 1 s the value increases or decreases rapidly, and if pressed for more than
2 s, the increasing/decreasing speed raises even more to quickly reach the desired value.
When the desired value is set press the key to exit from
Set Point programming mode.
To manually exit the Set Point programming mode press the
key or automatically if no key is pressed for 15 s. After that time the display returns to the normal function mode.
2.3 Parameter protection using the password
The instrument has a parameter protection function using a password that can be personalised through the PP parameter.
To protect the parameters, set the desired password number in the parameter tPP .
When the protection is active, to access the parameters press the key and keep it pressed for about 5 s, after which the display shows r.p
the display shows
0
. At this point, press the key,
, using the / keys, insert the programmed password number and press the key again.
If the password is correct the instrument displays the code of the first parameter and it will be possible to program the instrument in the same way described in the previous section.
The password protection can be disabled by setting tPP
= oF .
Normal mode
5 s
-24.5
Increase value
2 s
Password
OK r.p.
Password request
0
Decrease value
Insert password
ls.
Parameters set
Note: If the Password gets lost, just just cut OFF the supply, then push key and keep it pressed for 5 s while powering again ON the instrument. In this way it is possible to access all the parameters, verify and modify the parameter
PP
.
Ascon Tecnologic - E51- - OPERATING INSTRUCTIONS - PAG. 2
2.4 Customized mode parameter programming
(parameters programming level)
The password protection hides all the configuration parameters behind a factory set password to avoid unwanted changes to the controller parameters. To make a parameter accessible without having to enter the password when
PP
password protection is active, use the procedure that follows:
Enter the program mode using the
PP
Password and select the parameter that must be accessible (no password protection).
Once a parameter is selected, if the SET LED flashes the parameter is programmable by entering the password (is “ protected ”). If instead the SET LED is steady ON the parameter is programmable without password (is “ unprotected ”).
To change the parameter accessibility, press the key and keeping it pressed also press the key.
The SET LED will change its state to indicate the new access level of the parameter ( ON = not protected; flashing = password protected).
In case some parameters are not protected, accessing the the programming mode the display first shows the not protected parameters, then the r.p
parameter (through which will be possible to access the “protected” parameters).
Normal mode
5 s
2 s
-24.5
Not protected parameter
Previous
Param.
Parameters set
Increase value
HA.
Next
Param.
35.0
Decrease value
Increase value
Password
OK
r.p.
Password request
0
Decrease value
Insert password
ls.
Parameters set
4. INSTALLATION WARNINGS
4.1 Mechanical mounting
The instrument, in case 65 x 33 mm, is designed for flushin panel mounting. Make a 58 x 25 mm hole and insert the instrument, fixing it with the provided special brackets.
We recommend that the gasket is mounted in order to obtain the declared front protection degree.
Avoid placing the instrument in environments with very high humidity levels or dirt that may create condensation or where conductive substances may enter the instrument’s case.
Ensure the adequate ventilation to the instrument and avoid to place it in containers that house devices which may overheat or which may cause the instrument to function at a higher temperature than the one permitted and declared.
Connect the instrument as far away as possible from sources of electromagnetic disturbances such as motors, power relays, relays, solenoid valves, etc..
4.2 Dimensions [mm]
4.2.1 Mechanical dimensions
65 5
OUT
E51
SET
4.2.2 Panel cut-out
58 min. 15 mm
50
2.5 Reset parameters to default value/Level
The instrument allows the reset of the parameters to those values programmed in factory as default.
To restore the default parameters value set value -48 at r.p
password request (
PP
pasword must be active).
Once confirmed the password with the key the display shows “
--
” for 2 s, therefore the instrument resets all the parameters to the factory default setting.
4.3 Mounting
Brackets
RECOMMENDED
PANEL CUTOUT
3. USAGE WARNINGS
3.1 Admitted use
D D The instrument has been projected and manufactured as a measuring and control device to be used according to EN60730-1 at altitudes operation below 2000 m.
Using the instrument for applications not expressly permitted by the above mentioned rule must adopt all the necessary protective measures.
The instrument MUST NOT BE USED in dangerous environments (flammable or explosive) without adequate protections.
D D The installer must ensure that the EMC rules are respected, also after the instrument installation, if necessary using proper filters.
57 5 31
Ascon Tecnologic - E51- - OPERATING INSTRUCTIONS - PAG. 3
4.4 Electrical connections
Carry out the electrical wiring by connecting only one wire to each terminal, according to the diagram that follows, checking that the power supply is the same as that indicated on the instrument and that the load current absorption is no higher than the maximum electricity current permitted.
As the instrument is built-in equipment with permanent connection inside housing, it is equipped neither with switches nor internal devices to protect against current overloads: the installation must include an overload protection and a two-phase circuit-breaker, placed as near as possible to the instrument, located in a position that can easily be reached by the user and marked as instrument disconnecting device which interrupts the power supply to the equipment.
It is also recommended that the supply of all the electrical circuits connected to the instrument must be protect properly, using devices (ex. fuses) proportionate to the circulating currents.
It is strongly recommended that cables with proper insulation, according to the working voltages and temperatures, be used.
Furthermore, the input cable of the probe has to be kept separate from line voltage wiring. When a probe shielded cable is used, the protection shield should be connected to ground at only one side.
Whether the instrument is 12 V version it is recommended to use an external transformer TCTR, or with equivalent features, and to use only one transformer for each instrument because there is no insulation between supply and input.
D D We recommend that a check should be made that the parameters are those desired and that the application functions correctly before connecting the outputs to the actuators so as to avoid malfunctioning that may cause irregularities in the plant that could cause damage to people, things or animals.
4.4.1 Electrical wiring diagram
SPST-NO
C NO
E51
1 2
SPDT
NC
3
C
4 5
NO Input
6 7
Supply Output
SPST-NO or SPDT:
(16A-AC1, 6A-AC3 250 VAC,
1 HP 250 VAC, 1/2 HP 125 VAC)
PTC/NTC
Probe
5. FUNCTIONS
5.1 Measuring and Display Configuration
Through parameter ru , it is possible to select the temperature engineering unit (°C or °F) and, through parameter dP , is possible to set the desired measure resolution(oF = 1°; on = 0.1°).
The instrument allows the measure calibration, which can be used to re-calibrate the instrument according to application needs, through the parameters CA .
Using
Ft
parameter can be set a software filter for measuring the input values in order to reduce the sensitivity to measurement disturbances (increasing the sampling time).
Please remember that what shown on the display can be changed also by the dL
parameter - Display lock function during defrost (see the Defrost function).
5.2 Temperature control
The instrument control is ON/OFF and acts on the OUT output depending on the Probe measuring, the SP Set Point, the intervention differential (Histeresys) d and the HC control mode.
Depending on the function mode programmed with parameter
(
HC
the by the controller with positive values for Refrigeration controls
HC
= C d
intervention differential is automatically considered
) or negative values for Heating controls (
HC
= H ).
Temp.
HC
= C Temp.
SP
HC
= H d
SP d time time
OUT
ON off ON off ON
OUT
ON off ON off ON
In the event of a probe error, it is possible to set the instrument so that the OUT output continues working in cycles according to the times programmed at parameters t1
(activation time) and t2
(deactivation time).
If a probe error occurs, the instrument activates the OUT output for the time t1
, then deactivates it for the time so on whilst the error remains.
t2
and
Programming t1
= oF the OUT output in probe error condition remains switched OFF.
Programming instead t1
= any value and t2
= oF the OUT output in probe error condition remains switched ON.
Remember that the temperature control function can be conditioned by the Compressor Protections , Delay at power
ON and Defrost functions .
5.3 Compressor protection function and power-on delay
The “ Compressor Protection ” function aims to avoid continuous and close start-ups of the compressor controlled by the instrument in cooling applications.
This function foresees 3 time controls to the switching ON of the output associated to the temperature control request. The protection consists of preventing the output being switched ON during the times set at parameters P1 , P2 and P3 and therefore that any activation occurs only after all times have elapsed.
Ascon Tecnologic - E51- - OPERATING INSTRUCTIONS - PAG. 4
1 First control (parameter P1 ) foresees a delay to output activation (switching-ON delay).
Temp.
P1 d
SP
OUT off
P1
ON off
P1
ON off
P1
ON off time
2 Second control (parameter P2 ) foresees an inhibition to the activation of the output by a time delay that starts when the output is turning OFF (delay after switching-OFF).
Temp.
P2
SP d
OUT
ON off
P2
ON off
P2
ON off
P2 time
3 Third control (parameter
P3
) foresees an inhibition to output activation by a time delay that starts last time the output was turned ON (delay between two switching-ON).
Temp.
P3 d
SP
OUT
ON
P3 off ON
P3 off ON
P3 off time
During the output inhibition the LED OUT blinks.
It is also possible to prevent the output activation at instrument power ON for the time set at parameter od .
During the power ON delay phase, the display shows the label od , alternated to the normal visualization.
All these functions are disabled if the relative parameters are set to OFF ( oF ).
5.4 Defrost control
The automatic defrost control is made by the stopping compressor method and occurs according to the following parameters: dC
Defrost interval computation di
•
• rt
- based on real time (instrument ON); ct
- based only on compressor running time (output ON).
Interval between defrost cycles (h); dn
Interval between defrost cycles (min); dE Lenght of defrost cycles.
The instrument switches OFF the output for the time dE each [ di + dn ] time (of real time functioning if dC = rt or of compressor running time if dC = ct ).
Temp.
SP d time
OUT
Defrost
ON OFF di + dn
ON OFF
(Defrost)
DE
ON OFF di + dn
ON OFF
(Defrost)
DE
Example with dC
= rt
During the defrost phase, the display shows the label dF , alternated with the normal visualisation.
Automatic defrost cycles are disabled setting di and dn = 0 .
Manual and Automatic defrost cycles are disabled by de = 0 .
During the defrost the temperature alarms are disabled during the entire cycle and also later for the time set at parameter dA
(see Temperature alarm functions ).
5.4.1 Manual defrost
To start a manual defrost cycle, press the key / when the it is not in programming mode and keep it pressed for about 5 s after which, if the conditions are correct, the display shows the label dF defrost cycle.
and the instrument performs out a
To stop a defrost cycle, press the key / during the defrost and keep it pressed for about 5 s.
5.4.2 Display lock during Defrosting
Through parameters dL , et and dA it is possible to define the display behaviour during defrost (in all the cases it also shows the label dF ): dL = on
The dL parameter locks the display at the last temperature reading during all the defrost cycle until, at the end of defrost, the temperature has returned below the value of the last measurement or value [ SP + d ] or has elapsed the time set at parameter dA .
dL = Lb
During the defrost cycle the display shows the label dF and Pd after defrost until, at the end of defrost, the temperature has reached the value [ SP + d ] or has elapsed the time set at parameter dA .
dL
= oF
During the defrost cycle the display continues showing the temperature measured by the probe alternated to the label dF
.
5.5 Temperature Alarms
The relative type temperature alarms work according to the probe measurement, the alarm thresholds set at parameters
HA (relative maximum alarm) and LA (relative minimum alarm) and the relative differential Ad (alarm histeresys). Using some parameters it is also possible to delay the enabling and the intervention of these alarms. These parameters are:
PA Temperature alarm exclusion time at instrument power
ON if the instrument is in alarm status when it is switched ON. If the instrument is not in alarm status at power ON the time PA it is not considered.
dA Temperature alarm exclusion time at the end of defrost.
At
Temperature alarms delay activation time. Temperature alarms are enabled at the end of the exclusion times and are activated after the
At
time when the temperature measured by the probe exceeds the value [
SP
+
HA
] or goes below the value [
SP
-
HA
].
Temp.
Ad
SP
HA
LA
Ad
AL off
Hi
ON off
Lo
ON off time
In alarm condition the instrument shows on the display:
Hi alternated to the measured temperature(max. alarm); lo alternated to the measured temperature (min. alarm).
The maximum and minimum temperature alarms can be disabled by setting the related parameters
HA
and
LA
= oF .
Ascon Tecnologic - E51- - OPERATING INSTRUCTIONS - PAG. 5
5.6 ON/Standby Function
Once powered ON the instrument can assume 2 different conditions:
• ON : The controller uses the control functions.
• STANDBY : The controller uses no use control functions and the display is turned OFF except for the SET LED.
If a power failure occurs, when the power returns, the system sets itself in the condition it was in before the black-out.
The ON/Stand-by function can be selected using the key if the parameter Fb = 1 .
Pressing the key for at least 1 s, it is possible to switch the instrument from ON to Stand-by status and vice versa.
5.7 Keyboard lock function
The instrument allows to completely lock the keyboard. This function is useful when the controller is installed in an accessible area and changes must be avoided.
To activate the keyboard lock, simply set the parameter Lo to a value different than oF . The value set for Lo parameter is the keys inactivity time elapsed which the keyboard will be locked.
Therefore, pressing no buttons for the time set at
Lo
, the normal functions of the keys are automatically disabled.
When the keyboard is locked, if any of the key is pressed, the display shows
Ln
to indicate that the lock is active.
To unlock the keyboard it is enough to contemporarily press
and keys and keep them pressed for 5 s, after which the label
LF
appears on the display and all the key functions will be available again.
6. PROGRAMMABLE PARAMETERS TABLE
Here below is a description of all the parameters available on the instrument. Some of them may not be present, either due to the fact they depend on the type of instrument or because they are automatically disabled as unnecessary.
Parameter
1
2
3
4
5
LS
HS
SP
CA ru
Set Point
Description
Minimum Set Point
Maximum Set Point
Probe Calibration
Unit of measurement
Range
-58 ÷ HS °C/°F
LS ÷ 302 °C/°F
LS ÷ HS
-30 ÷ 30.0 °C/°F
°C Celsius degrees
°F Fahrenheit on - oF oF ÷ 20.0 s
0.1 ÷ 30.0 °C/°F
6 dP Decimal point
7
Ft
Measurement filter
8 d
Differential (Hysteresis)
9
10 t1 t2
Activation time output Out for probe broken
Deactivation time output Out for probe broken oF ÷ 999 min oF ÷ 999 min
11 HC Function mode output Out
12 di
Defrosting interval (h)
13 dn Defrosting interval (min)
14 dE
Lenght of defrost cycle
15 dC
Defrosting intervals Counting mode
H Heat
C Cool
0 ÷ 24 h
0÷ 59 min oF ÷ 999 min rt Real time; ct On Out time
16 dL
Defrost display Lock oF Display free on Lock on temperature before defrost
Lb Lock on label dF
(in defrost) and
Pd (post-defrost) oF ÷ 999 min 17 P1 Out delay at switch on
18
P2
Out delay after switch off oF ÷ 999 min
19
P3
Out delay between switching-on oF ÷ 999 min
20
21 od
HA
Delay at power on
Relative High temperature
Alarm threshold oF ÷ 999 min oF ÷ 99.9 °C/°F
22
23
LA
Ad
Relative Low temperature
Alarm threshold
Temperature Alarms Differential oF ÷ 99.9 °C/°F
0.1 ÷ 30.0 °C/°F
24 At Temperature Alarms delay
25 PA
Temperature Alarms delay at power on
26 dA
Temperature Alarms delay and unlock display delay after defrost oF ÷ 999 min oF ÷ 999 min oF ÷ 999 min
27
Fb
Function mode key oF No Function
1 ON/STAND-BY
28 Lo Keyboard lock function delay oF ÷ 25 min
29 PP
Access Password to parameter functions oF ÷ 999 oF oF oF oF
6
0
30
Default
-50
100
0.0
0.0
°C on
2.0
2.0
oF oF
C rt oF oF oF
1.0
oF
120
60 oF oF oF
Ascon Tecnologic - E51- - OPERATING INSTRUCTIONS - PAG. 6
7. PROBLEMS AND MAINTENANCE
7.1 Notifications
7.1.1 Error messages
Error
E1 -E1
Reason
The probe may be interrupted ( E ) or in short circuit
( -E ) or may measure a value outside the range allowed eE Internal memory error
Action
Check the probe connection with the instrument and check that the probe works correctly
Check and if necessary re-program the parameters function
7.1.2 Other messages
Message od dF
Pd
Ln
Hi
Lo
Reason
Delay at power-on in progress
Defrost in progress with dLo = Lb
Post-defrosting in progress with dLo = Lb
Keyboard locked
Maximum temperature alarm in progress
Minimum temperature alarm in progress
7.2 Cleaning
We recommend cleaning of the instrument only with a slightly wet cloth using water and not abrasive cleaners or solvents.
7.3 Disposal
The appliance (or the product) must be disposed of separately in compliance with the local standards in force on waste disposal.
8. WARRANTY AND REPAIRS
The instrument is under warranty against manufacturing flaws or faulty material, that are found within 18 months from delivery date. The warranty is limited to repairs or to the replacement of the instrument.
The eventual opening of the housing, the violation of the instrument or the improper use and installation of the product will bring about the immediate withdrawal of the warranty effects.
In the event of a faulty instrument, either within the period of warranty, or further to its expiry, please contact our sales department to obtain authorisation for sending the instrument to our company.
The faulty product must be shipped to Ascon Tecnologic with a detailed description of the faults found, without any fees or charge for Ascon Tecnologic, except in the event of alternative agreements.
9. TECHNICAL DATA
9.1 Electrical characteristics
Power supply: 12 VAC/VDC, 115 VAC, 230 VAC ±10%;
AC frequency: 50/60 Hz;
Power consumption: about 3 VA;
Input: 1 inputs for temperature probes :
PTC (KTY 81-121, 990 W @ 25°C) or
NTC (103AT-2, 10 k W @ 25°C);
Output: 1 relay output:
EN 61810 EN 60730 UL 60730
(S) - SPDT -
16A - 1HP 250V,
1/2HP 125 VAC
(R) - SPST-NO -
16A - 1HP 250V,
1/2HP 125 VAC
16 (9) A
16 (9) A
10 (4) A
10 (4) A
12 A Res.,
30 LRA,
5 FLA
12 A Res.,
30 LRA,
5 FLA
Relay output Electrical life:
• SPDT: 50000 operations;
• SPST-NO: 100000 operations;
Action type: Type 1.B (EN 60730-1);
Overvoltage category: II;
Protection class: Class II;
Isolation: Reinforced insulation between the low voltage part (supply 115/230 V and relay output) and front panel; Reinforced insulation between the low voltage section (supply
115/230 V and relay output) and the extra low voltage section (inputs); Reinforced between supply and relay output;
No insulation between supply 12 V and inputs.
9.2 Mechanical characteristics
Housing: Self-extinguishing plastic, UL 94 V0;
Dimensions: 33 x 65 mm, depth 50 mm;
Weight: About 105 g;
Mounting: Incorporated flush in panel (gasket + panel max.
5 mm) in a 25 x 58 mm hole;
Connections: screw terminal block for 2.5 mm 2 /
AWG 24 ÷ 14 cables;
Front panel protection : IP 65 (NEMA 3S) mounted in panel with gasket;
Pollution degree: 2;
Operating temperature: 0 ÷ 50°C;
Operating humidity: < 95 RH% with no condensation;
Storage temperature: -25 ÷ +60°C.
9.3 Functional features
Temperature Control: ON/OFF mode;
Defrost control: Interval cycles by stopping compressor;
Measurement range: PTC -50 ÷ 150°C/-58 ÷ 302°F or
NTC (-50 ÷ +109°C/-58 ÷ +228°F;
Display resolution: 1° or 0.1° (range -19.9 ÷ +99.9°);
Overall accuracy: ±(0.5% fs + 1 digit);
Sampling rate: 130 ms;
Display: 3 Digit Red, height 14 mm;
Software class and structure: Class A;
Compliance: ECC directive 2004/108/CE (EN55022: class
B; EN61000-4-2: 8 kV air, 4 V cont.; EN61000-4-3: 10V/m;
EN61000-4-4: 2 kV supply, inputs, outputs; EN61000-4-5: supply 2 kV com. mode, 1 kV\ diff. mode; EN61000-4-6: 3V),
2006/95/CE (EN 60730-1, EN 60730-2-7, EN 60730-2-9).
Ascon Tecnologic - E51- - OPERATING INSTRUCTIONS - PAG. 7
10. HOW TO ORDER
MODEL
E51 = Electronic freezer controller a: POWER SUPPLY
D = 230 VAC
C = 115 VAC
F = 12 VAC/VDC b: INPUT
N = NTC Input
P = PTC Input c: OUTPUT (OUT)
S = Relay output SPDT 16A-AC1 (resistive load)
R = Relay output SPST-NO 16A-AC1 (resistive load)
E51 a b c d e f g h ii jj d, e, f, g, h : INTERNAL CODES; ii, jj : SPECIAL CODES
Ascon Tecnologic - E51- - OPERATING INSTRUCTIONS - PAG. 8
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