Eliwell EWKPlus 978 User Manual

EWPlus 978 - EWKPlus 978
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"USER" MENU PARAMETERS TABLE
Param. DESCRIPTION RANGE M.U. AP1 AP2 AP3
SEt Temperature control SEtpoint. LSE ... HSE °C/°F -18.0 -18.0 -23.0
dF1 Compressor relay activation differential. (dF1 must be ≠ 0). 0.1 ... 30.0 °C/°F 4.0 4.0 2.5
HSE Maximum value that can be assigned to the setpoint. LSE ... 320 °C/°F -5.0 -5.0 -15.0
LSE Minimum value that can be assigned to the setpoint. -58.0 ... HSE °C/°F -35.0 -35.0 -30.0
CP2 Delay before activation of compressor step 2 0 ... 255 secs 5 5 5
dty Type of defrost (0 = electric, 1 = reverse cycle, 2 = Free). 0/1/2 num 1 1 1
dit Interval between the start of two consecutive defrost cycles. 0 ... 250 hours 4 6 8
dEt Defrost time-out; determines the maximum defrost duration 1 ... 250 min 30 20 45
dS1 Defrost end temperature (determined by probe Pb2). -67.0 ... 320 °C/°F 8.0 60.0 15.0
dS2 Evaporator 2 defrost end temperature (determined by probe Pb3). -67.0 ... 320 °C/°F 8.0 8.0 8.0
FSt
Fans stop temperature; if Pb2 > FSt, the fans are stopped. The value is either positive or negative and,
depending on parameter FPt, can be either the absolute temperature or the temperature relative to the setpoint.
-50.0 ... 150 °C/°F 50.0 -50.0
FSS Evaporator fans activation temperature differential. 0.0 ... 100.0 °C/°F 0.0 0.0
Fot
Fans start temperature; if the temperature on the evaporator is lower than the value set in this parameter, the
fans remain off. The value is either positive or negative and, depending on parameter FPt, can be either the
absolute temperature or the temperature relative to the setpoint.
-67.0 ... 320 °C/°F -20.0
FAt Fan activation differential (see par. FSt). 1.0 ... 50.0 °C/°F 2.0
Fdt Fan activation delay after a defrost cycle. 0 ... 250 min 0 0 0
dt drainage time. Coil drainage time. 0 ... 250 min 3 0 0
dFd
Allows exclusion of the evaporator fans to be selected or not selected during defrosting.
n (0) = no; y (1) = yes.
n/y flag y n y
HAL
Maximum temperature alarm. Temperature value which if exceeded in an upward direction triggers the
activation of the alarm signal.
LAL ... 320 °C/°F 50.0 50.0 8.0
LAL
Minimum temperature alarm. Temperature value which if exceeded in a downward direction triggers the
activation of the alarm signal.
-67.0 ... HAL °C/°F -50.0 -50.0 -2.0
tAO Time delay for temperature alarm indication. 0 ... 250 min 90 90 120
OSP Offset on setpoint -30.0 ... 30.0 °C/°F 0.0 0.0 0.0
OdF Activation differential correction 0.0 ... 30.0 °C/°F 0.0 0.0 0.0
PtS Select protocol. t (0) = Televis; d (1) = ModBus. t/d flag d
Parameters
not present
in vectors
dEA Device address: indicates the device address to the management protocol. 0 ... 14 num 1
FAA Family address: indicates the device family to the management protocol. 0 ... 14 num 0
Pty Sets Modbus parity bit. n (0) = none; E (1) = equal; o (2) = unequal. (only if PtS=d) n/E/o num n
StP Sets Modbus Stop bit. 1b/2b flag 2b
StO Serial 1 timeout. 0 ... 255 secs 0
LOC LOCk. Basic commands modification lock. n (0) = no; y (1) = yes. n/y flag n n n
PS1 PAssword 1. When enabled (PS1 ≠ 0), this password provides access to level1 parameters (User). 0 ... 250 num 10 10 10
CA1 Calibration 1. Value to be added to the value read by Pb1. -12.0 ... 12.0 °C/°F 2.0 4.0 0.0
CA2 Calibration 2. Value to be added to the value read by Pb2. -12.0 ... 12.0 °C/°F 0.0 0.0 0.0
CA3 Calibration 3. Value to be added to the value read by Pb3. -12.0 ... 12.0 °C/°F 0.0 0.0 0.0
ddL
Display mode during defrost.
0= displays the temperature read by probe Pb1;
1= locks the reading at the temperature value read by probe Pb1 when defrosting starts and until the next time
the SEt* is reached;
2= displays the label deF during defrosting and until the next time the SEt* is reached (or until Ldd has elapsed)
(* See parameter dCS and "Deep Cooling Cycle" paragraph)
0/1/2 num 2 2 2
Ldd Timeout value for display unlock - label dEF 0 ... 255 min 30 30 60
H42 Presence of Evaporator probe (Pb2). n (0) = not present; y (1) = present. n/y flag y y y
H43 Probe 3 (Pb3) present. n (0) = not present; y (1) = present; 2EP (2) = evaporator 2 defrost. n/y/2EP flag 2EP 2EP n
H45
Start defrost mode for applications with double evaporator.
0 = evaporator 1 only;
1 = if at least one of the evaporators is below its defrost end temperature
Pb2 value < dS1 (evaporator 1) or Pb3 value < dS2 (evaporator 2);
2 = if both evaporators are below their respective defrost end temperature
Pb2 value < dS1 (evaporator 1) and Pb3 value < dS2 (evaporator 2).
3 = evaporator 1 and evaporator 2 activated alternately
0/1/2/3 num 3 1 0
rEL Firmware release. Reserved: read-only parameter / / / / /
tAb Parameters tAble. Reserved: read-only parameter / / / / /
Note: ** The “USER” menu parameters also include “PA2” which permits access to the “Installer” menu.

Eliwell EWKPlus 978 Specifications

General

Brand	Eliwell
Model	EWKPlus 978
Category	Controller
Language	English