3
EWPX 193(/E) 11/97 ing
Temperature set for the defrost termination
of the second evaporator.
dEA
: dEvice Address.
Allows the selection of the device address
in the remote control network.
FAA
: FAmily Address.
Allows the selection of the device family in
the remote control network.
ndt
: number of digits.
Type of display.
Int = reading without decimal point;
dEc = reading with decimal point, resolu-
tion 0,1 °C;
hFn = reading with decimal point, resolu-
tion 0.5 °C.
Loc
: keyboard Lock.
Allows to disable the keyboard to prevent
unauthorised operations. When the key-
board is disabled only display (not modifi-
cation) of Setpoint and parameters is
allowed. Only the “Loc” parameter can be
modified to permit keyboard unlock.
y = yes; n = no.
PAS
: PASsword.
Allows to set a password (see paragraph
“Password to access parameter program-
ming”).
0 = no password required to access para-
meter programming;
1…15 = available values for the password.
rEL
: rELease firmware.
Read-only parameter showing the release
code of the product.
tAb
: tAble of parameters.
Summary of factory set parameters; can-
not be modified by the user.
MECHANICAL MOUNT
The instrument is designed for panel
mount. Drill a 29x71 mm hole and intro-
duce the instrument, then fix it with the
special bracket (included).
The operating temperature range for cor-
rect operation is from –5 to 65 °C. Do not
install the instrument in moist and/or dirty
places; it is suitable for operation in envi-
ronments with an ordinary pollution level.
Leave enough room for air circulation by
the cooling holes of the instrument.
ELECTRICAL CONNECTIONS
EWPX 193(/E) is provided with four relay
outputs, one serial output for the connec-
tion to the TELEVIS system and another
serial output for the EWPX ECHO repeater
(version /E only).
The instrument includes a screw terminal
block for the connection of electrical ca-
bles with a maximum 2.5 mm
2
section
(one wire only for each block, according to
VDE regulations).
Relay outputs, connected through two
common terminal blocks, are free from
voltage. Do not exceed the maximum al-
lowed current (defrost system second
evaporator and compressor: 8(3)A 250V
AC; defrost system first evaporator and
fans: 5(2)A 250V AC). In case of heavier
loads use a suitable power contactor.
Check the power voltage complies with
the instrument requirements: 12 Vca/cc
±15% (very low safety voltage).
The NTC probe has no insertion polarity
and can be lengthened using a common
bipolar cable (bearing in mind that a very
long probe implies worse instrument per-
formances referred to the EMC).
Outputs for the connection of the EWPX
ECHO repeater (version /E only) and the
EWRS 485 interface module of the TELE-
VIS system require connections according
to the indicated polarity.
The probe cable, the connection cable for
the EWPX ECHO repeater (version /E only),
the connection cable for the EWRS 485 in-
terface module shall be kept far from the
relay cables both for EMC and safety rea-
sons. The coordinated European safety
regulations state that the relay contacts
(and generally speaking, all parts subject
to dangerous voltage) shall be kept away
from the very low safety voltage connec-
tions (probe, Televis serial, power supply)
using insulation systems and distances
providing at least a double or reinforced in-
sulation.
However EMC requirements for correct
operation suggest/impose better accuracy
DEFAULT SETTINGS - STANDARD MODELS
Parameter
diF
LSE
HSE
dty
dit
dct
doh
dEt
dSt
FSt
Fdt
dt
dPo
ddL
dFd
APS
Att
HAL
LAL
AFd
PAO
dAo
tAo
Fco
cPP
Ont
OFt
ctP
cdP
odo
PrP
CAL
AAS
dEA
FAA
ndt
Loc
PAS
rEL
tAb
Description
diFferential
Lower SEt
Higher SEt
defrost type
defrost interval time
defrost counting type
defrost offset hour
defrost Endurance time
defrost Stop temperature
Fan Stop temperature
Fan delay time
drainage time
defrost (at) Power-on
defrost display Lock
defrost Fan disable
Alarm Probe Selection
Alarm temperature type
High ALarm
Low ALarm
Alarm (Fan) differential
Power-on Alarm Override
defrost Alarm override
temperat. Alarm override
Fan compressor off
compressor Probe Prot.
On time (compressor)
OFF time (compressor)
compr. type Protection
compr. delay Protection
output delay (at) on
Presence Probe
CALibration
Auxiliary Alarm Setpoint
dEvice Address
FAmily Address
number display type
(keyboard) Lock
PASsword
rELease firmware
tAble of parameters
Range
–12…12
–999…HSE
LSE…999
EL / in
0…31
dF / rt / SC / Fr
0…59
1…250
–999…999
–999…999
0…250
0…250
n / y
n / y / Lb / Lg
n / y
rP / tP
Ab / re
–999…999
–999…999
1…50
0…10
0…999
0…250
oF / on
oF / on / dc
0…250
0…250
nP/don/doF/dbi
0…15
0…99
nP / EP / AP / EAP
–12…12
–999…999
0…14
0…14
int / dEc / hFn
n / y
0…15
/
/
Unit
°C / °F
°C / °F
°C / °F
flag
hours
flag
minutes
minutes
°C / °F
°C / °F
minutes
minutes
flag
flag
flag
flag
flag
°C / °F
°C / °F
°C / °F
hours
minutes
minutes
flag
flag
minutes
minutes
flag
minutes
minutes
flag
°C / °F
°C / °F
number
number
flag
flag
number
/
/
Default
2
–50
40
EL
6
dF
0
30
8
2
0
0
n
n
y
tP
re
50
–50
2
2
60
0
on
on
10
10
doF
0
0
EAP
0
8
0
0
int
n
0
/
/
