ELREHA EVP 3150-1 Technical Manual

Brief Description / Applications
• Controller for all kind of Storages, such as Walk-In Coolers/Freezers,
Refrigerated Shelfs, Refrigerated Counters, Refrigerated Cases, etc.
• For standard cold storages or cold storages with pulse-width modulated
expansion valves or expansion valves with thermal drive
• For single or network operation
• 4 Temperature sensors, 4 Relays, 2 Digital Inputs, Analogue In-/Output
Standard Functions
• Controls temperature, defrost device, evaporator fans, roller blinds, etc.
• Up to 3 evaporators with a single device
• 2 expansion Valve control methods selectable
• Valve control is fully autoadaptive
• Foresight control and condenser pressure optimization in cooperation
with the VPR compressor compounds central unit
• Intelligent defrost control, able to learn, no additional sensors
• Defrost Start fully automatic, by 6 release times or manually
• Defrost cycle is pulsed, controlled by evap sensor (variable intervals)
• Automatic recognition of the leading evaporator
• Emergency Mode if sensor or defrost recognition fails.
Autoreset after repair
• Use of Latency Heat by intelligent fan control
Operating / Operating Elements
The front view of the version with an older display you will find on page 6.
EVP
increase
values
1 2
E VP
decrease
values
The currently displayed
setpoint is active
The current states of the digital inputs can be read under L60, the state of the
relays and the data transmission can be read under L61 (Actual Values Page).
LEDs are blinking the same time =
control functions are disabled by digital input or via interface
3 keys allow programming the unit, all parameters will be displayed on
the red LED-7-segment display. 4 red symbols at the right side indicate
specific control functions (not the relay states, these are displayed on the
'Actual Page' !).
Programming
All parameters of the EVP are distributed on different pages.
While normal operation or if no key is pressed for about 3 minutes, the EVP
displays the following information:
1st priority: current failure (blinking)
2nd priority: operating states (e.g. 'oFF')
3rd priority: selected 'permanent parameter' display
Selecting and Changing of Parameters
key action
P (> 2 sec.) .......Page name will be displayed
  ...................Select desired page
P
.....................Enter the page
  ...................Select parameter
P .....................Prepare programming. Enter access code if necessary
  ...................Change value.
If you hold the key, the values change faster and faster
P .....................Confirm programming
P (> 2 sec.) .......Page name will be displayed again
Access Protection
Except the temperature setpoints, parameters can be changed only after
entering a correct access code. If you want to change such a parameter after
pushing the "P"-key, then the following display appears:
Now the controller expects the entry of a code number .
(00
This code number is always 88. Enter it by the up/down keys
88
and confirm it by pressing "P" again.
If no key is pushed for about 3 minutes, the code number must be entered
again.
Manual Defrost
Start manual defrost: - Select "d50" (Defrost Page),
- Set it to "on" and confirm.
Stop manual defrost: - Select "d50" (Defrost Page),
- Set it to "oFF" and confirm.
LED on = cooling
3
4 E LR E H A
LED on = defrost
P
LED on = fan is running
P
ELREHA
Programming key
LED blinking = alarm
ELEKTRONISCHE REGELUNGEN GMBH
Technical Manual
Cold Storage Controller
Types:
In controllers which contain older software
versions, some functions may not be available!
Parameter Pages
(L)
(r)

(d)

(P)
(h)
If an older version must be replaced
- please note the modified terminals!
CAUTION
Please note safety instructions !
DANGER
This may be a brief version of the technical manual.
A complete version with the pages 7...16 you can
find on www.elreha.de or our free INFO-CD.
Notice
5311092-00/26E
from SoftVers. 1.61
EVP 3150-1
EVP 3150-2
1st. Para-
P
meter on the:
> 2 sec.
Actual
P
L01
Values
Page
r01 Setpoint
P
Page
P
Defrost
d01
Page
P01 Mode
P
Page
P
h01 Assign-
ment
Page