Carel PZD0SNP0E1 User manual

EASY COOL (PZD0SNP0E1):electronic controllers for normal temperature static refrigeration units
+050004121 - rel. 1.0 - 19.10.2009
NO POWER
& SIGNAL
CABLES
TOGETHER
READ CAREFULLY IN THE TEXT!
Display and functions
During normal operation, the controller displays the value of the temperature read by
probe. In addition, the display has LED that indicate the activation of the control functions
(see Tab. 1), while the 3 buttons can be used to activate/deactivate some of the functions
(see Tab. 2).
Compressor LED signals
icon function normal operation start up
ON OFF blink
compressor
status
on off ON request in
progress
ON
Tab. 1
Table of functions activated by the buttons
button normal operation start up
pressing the button alone pressed together
up
ON/OFF
more than 3 s:
toggle ON/OFF
Pressed together start/
stop
continuous cycle
-
down
defrost
more than 3 s:
start/stop defrost
for 1 s display
firmware vers. code
set mute - 1 s.: display/set the set
point
- more than 3 s: access
parameter setting menu
(enter password ‘22’)
- for 1 s RESET
current
EY set
Tab. 2
Setting the setpoint (desired temperature)
Step Action Effect Meaning
1Keep SET button pres-
sed for 2 s
After 1 sec currently setpoint value will
flash on display
It’s regulation setpoint
currently active
2Press UP or DOWN
buttons
Setpoint value will chang Set desired value
3Press SET button Controller will visualize temperature
read by probes again
setpoint is modified and
saved
Accessing and setting the parameters
Step Action Effect Meaning
1Keep SET button
pressed for 3 s
After 3 s display will visualize “PS” Password is requested
2Press SET button again Display will visualize “0” blinking
3Press UP or DOWN
button
Visualized value on display will change Insert password “22”
4Press SET button After 5 s the first parameter, “/5”, will
be visualized on display
It’s the name of the first
parameter
5Press UP or DOWN
button
Parameter list will be scrolled on display
(refer to Table of parameters)
Select desired parameter
6Press SET button Display will visualize value of the selec-
ted parameter
It’s the currently parame-
ter value
7Press UP or DOWN
button
Parameter value visualized on display
will change
Set desired value
8Press SET button Display will visualize parameter name
again
Attention: parameters
updating is not yet active
9Repeat steps 5, 6, 7
and 8for all desired
parameters
10 Keep SET button
pressed for 5 s
Controller will visualize temperature
read by probes again
Attention: now para-
meters updating will be
active
Description
PJEZ* represents a range of electronic microprocessor controllers with LED display develo-
ped for the management of refrigerating units, display cabinets and showcases; are designed
for the management of static refrigerating units (no fan on the evaporator) operating at
temperatures above 0°C.
Technical specifications
• Electronic controllers for normal temperature static refrigeration units
• Power supply 230Vac
• Ambient probe NTC
• Compressor relay 16A
Dimensions (mm)
71x29
36
81
74
33
38,29
31
28.5
10
3
Fig.1
Panel mounting
Front (with 2 screws ø 2,5x12 mm)
max 2,5
123
Pozidriv type
Do not tighten
excessively
Fig.2
Rear (with 2 quick-fit side brackets)
12
PUSH
Fig.3
If necessary, remove the covers to simplify wiring
Fig.4
Electrical connections
Fig.5

+050004121 - rel. 1.0 - 19.10.2009
CAREL INDUSTRIES HQs
Via dell’Industria, 11 - 35020 Brugine - Padova (Italy)
Tel. [phone] – Fax [phone] – http://www.carel.com – e-mail: [email protected]
CAREL reserves the right to modify the features of its products without prior notice.
Disposal of the product
The appliance (or the product) must be disposed of separately in accordance with the local waste disposal
legislation in force.
WARNING: separate as much as possible the probe and digital input signal cables from the cables carrying
inductive loads and power cables to avoid possible electromagnetic disturbance. Never run power cables
(including the electrical panel wiring) and signal cables in the same conduits.
NO POWER
& SIGNAL
CABLES
TOGETHER
READ CAREFULLY IN THE TEXT!
Table of parameters
Parameter Min. Max. Def. UOM
PS PASSWORD 09922-
/ PROBE PARAMETERS
/5 Select °C / °F ( 0 = °C; 1 = °F) 0 1 0 -
/6 Disable decimal point (1 = disabled) 0 1 0 -
/C1 Probe calibration (OFFSET) -50.0 50.0 0.0 °C/°F
r CONTROL PARAMETERS
St Setpoint (control temperature) -50.0 90.0 3.0 °C/°F
rd Control differential (hysteresis) 0.0 19.0 2.0 °C/°F
c COMPRESSOR PARAMETERS
c0 Comp. and fan start delay after start-up 0 100 0 min
c1 Min. time between successive comp. starts 0 100 1 min
c4 Compressor safety (duty setting) 0 100 15 min
d DEFROST PARAMETERS
d0 Type of defrost (0 and 1= defrost by temperature; 2, 3 and
4= defrost by time)
04 2-
dI Interval between defrosts 0 199 6 h/min
dP Max. or effective defrost duration 1 199 20 min/s
d4 Defrost when the instrument is switched on (1= activated) 0 1 0 -
d6 Disable temperature display during defrost (1= display disabled) 0 1 1 -
A ALARM PARAMETERS
A0 Alarm differential -20.0 20.0 -2.0 °C/°F
AL Low temperature alarm threshold/deviation -50.0 250.0 -5.0 °C/°F
AH High temperature alarm threshold/deviation -50.0 250.0 15.0 °C/°F
Ad Low and high temperature alarm delay 0 199 0 min
H OTHER SETTINGS
H2 Enable keypad
0= keypad disabled
1= keypad enabled
2= keypad enabled except for ON/OFF function
02 1-
EY Restore the Default settings 0 1 0 -
Table of alarms
Alarm code Description Parameters involved
E0 probe 1 error= control -
LO low temperature alarm [AL] [Ad]
HI high temperature alarm [AH] [Ad]
EE unit parameter error -
EF operating parameter error -
dF defrost running [d6=0]
Pd defrost awaiting execution -
How to restore the Default settings (refer to table of parame-
ters in this sheet)
1) Access parameter EY (entering password 22 and scroll parameter list).
2) Select the desired configuration:
• EY = 0 ¼No changes;
• EY = 1 ¼Restore of default settings (refer to Table of parameters in this sheet);
3) Exit the setting procedure (holding SET button for more than 3 s).
4) Power off the device and then power it on again while holding SET button.
5) The display shows “CE” to indicate that the configuration has been restored.
Switching the device ON/OFF
Press UP for more than 3 s. The control and defrost algorithms are now disabled and the
instrument displays the message “OFF” alternating with the temperature read by the set probe.
Manual defrost
Press DOWN for more than 3 s (the defrost starts only if the temperature conditions are valid).
Continuous cycle
Press UP and DOWN together for more than 3 s.
Technical specifications
power supply 230 V 1~, -10% +15% 50/60 Hz
rated power 3 W
input NTC probe
relay output 16 A relay UL: 12 A resistive 5 FLA, 30 LRA 240 Vac 30,000 cycles
EN60730-1: 12(2)A or 10(4)A (N.O. only) 250 Vac 100000 cycles;
type of probe Std CAREL NTC 10 KΩ at 25 °C
power supply/
relay output
connector
- screw terminals pitch 5mm for cables with cross-sect. from 0.5 mm2to 1.5 mm2;
12 A max;
probe connector screw terminals:
- 2-pin pitch 5mm for models with 1 probe (cable cross-section from 0.5 mm2to
1.5 mm2); 12 A max;
assembly using screws from the front or with brackets at the rear
display LED display, 2 digits plus sign, decimal point and compressor icon
keypad 3 buttons with membrane
operating conditions -10T50 °C - humidity <90% rH non-condensing
storage conditions -20T70 °C - humidity <90% rH non-condensing
range of measurement -50T90 °C (-58T194 °F) - resolution 0.1 °C/°F
front panel index of protection panel installation with IP65 type 1
case plastic terminal, 81x36x38 mm
classification according to protection
against electric shock
Class II
environmental pollution II
PTI of the insulating material 250 V
period of stress across the insulating
parts
long
category of resistance to heat and fire category D (UL94 - V0)
immunity against voltage surges category 1
type of action and disconnection micro-disconnection 1C
no. of relay automatic operating cycles EN60730-1: 100,000 cycles
UL: 30,000 cycles (250 Vac)
software class and structure Class A
cleaning the instrument Only use neutral detergents and water.
cable max. lenght serial: 1 km
probes: 30 m
relay: 10 m
Note: do not run the power cable less than 3 cm from the bottom part of the device or from the
probes; for the connections only use copper wires.
Safety standards
compliant with the relevant European standards. Installation precautions:
the connection cables must guarantee insulation up to 90 °C;•
for 12 Vac versions use Class II transformers. To ensure compliance with the immunity•
standards (surge), the transformer must be one of the models specified (see the CAREL price
list). For the 12 Vac/dc versions, as double insulation cannot be guaranteed between the
power supply and the relay outputs, only use safety low voltage loads (up to 42 V effective
rated value);
ensure a space of at least 10 mm between the case and the nearby conductive parts;•
digital and analogue input connections less than 30 m away; adopt suitable measures for•
separating the cables so as to ensure compliance with the immunity standards;
Secure the connection cables of the outputs so as to avoid contact with very low voltage parts.
IMPORTANT WARNINGS
The CAREL product is a state-of-the-art device, whose operation is specified in the technical documentation
supplied with the product or can be downloaded, even prior to purchase, from the website www.carel.com.
The customer (manufacturer, developer or installer of the final equipment) accepts all liability and risk relating
to the configuration of the product in order to reach the expected results in relation to the specific final instal-
lation and/or equipment. The failure to complete such phase, which is required/indicated in the user manual,
may cause the final product to malfunction; CAREL accepts no liability in such cases. The customer must use
the product only in the manner described in the documentation relating to the product. The liability of CAREL
in relation to its products is specified in the CAREL general contract conditions, available on the website www.
carel.com and/or by specific agreements with customers.