English
Model
DRD1400-2400
DRD3000-6000
Parameter d1: time open in seconds for every 2 minutes of operation
• EXTERNAL - if there is an external drain (24VAC).
To change operation mode, use the parameter d3 (see par. 5.3 in List
of parameters).
Y
Only set the EXTERNAL mode in absence of the solenoid valve.
Otherwise the relative coil could become damaged.
Alarm log
Contains the descriptions of the last alarms (max. 8).
é
Press
for 5 seconds: the keypad now operates in Alarm MENU
z
mode and the events can be scrolled with
Every event is displayed with "ALx" (x=1-8).
AL1 = most recent event.
If there are no events "---" appears.
x
To view the details of the event, press
:
ALx
1 Alarm code
2 Th ousands of hours
3 Hours
4 Dew point
5 Evaporation temperature
6 Compressor discharge temperature
7 Auxiliary evaporation temperature (not available on DRD 1200
model)
z
é
Scrollwith
and
.
5.3
Parameters
Accessing parameters
z
é
Press
and at the same time
: the keypad now operates in Pa-
rameters MENU mode and the parameters can be scrolled with
é
and
.
List of parameters
A1
Sets the unit of measure for dew point in °C or °F.
A2/A3
Total hours of dryer operation= A3x1000+A2(display only).
Parameter d1
A4/A5
Like A2/A3 but for hours of refrigeration compressor opera-
tion.
10
A6
Sets Hd Warning intervention temperature (see par. 5.4 in
20
List of alarm/warnings).
A7
Inhibits remote OFF command.
b1
Sets the dryer address for serial communications.
b2
Sets the serial communication speed
b3
Not available
b5
Refrigerant evaporation temperature
b7
Not available
b8
Compressor discharge (delivery) temperature
b9
Not available
é
b11
Auxiliary refrigerant evaporation temperature (not avilable
and
.
on DRD1200 model)
C5
Dryer model: Mon = models
Note: if the C5 is set to = Mul in a monocooler dryer then
the warning ASE will occur. ASE is a warning for the mul-
ticooler models.
C7
Sets compressor operation mode:
- CYC = CYCLING (energy saving enabled)
- CON = CONTINUOUS (energy saving disable)
C36
Operating logic of the alarm/machine status relay.
0 = relay energised when dryer is running, de-energised if
in warning/alarm status.
1 = relay de-energised when dryer is running, energised if
in warning/alarm status.
2 = relay de-energised when dryer is running, energised
in warning/alarm status.
C37
% Energy saving
z
d1
Sets the seconds of condensate drain opening (if set in
TIMED mode).
d2
Like d1, but for seconds closed.
d3
Sets condensate drain operation mode:
- CAP = INTEGRATED
- tIM = TIMED
- Con = EXTERNAL (24VAC)
Changing parameters
DRD250-1200
DRD1400-6000
Mul = models
x
Aft er displaying the parameter, press
, change with
x
then press
to confi rm.
y
Press
to return to STANDARD mode.
5.4
Alarms and Warnings
Alarms cause the dryer to switch off .
Warnings only cause a signal.
In case of Alarm or Dew Point Sensor Warning (dSE),
[
the alarm code. In case of a Warning,
fault code and the dew point and WARNING LED comes on.
If an alarm occurs:
1) Identify and eliminate the cause;
z
2)press
to reset the alarm;
x
3) press
to restart the dryer.
If a warning without automatic reset occurs:
1) Identify and eliminate the cause;
z
2)press
to reset the warning.
List of alarm/warnings
HP
High Pressure alarm
CP
Compressor Thermal Protection Alarm /Phases Monitor
LP
Low Pressure alarm
Ld
Low Dew Point alarm
Lt
Low Evaporation Temperature alarm
High compressor Discharge Temperature alarm = T>248° F
Ht
(120°C)
LtA
Alarm low auxiliary evaporation temperature
Refrgerant Temperature Sensor Warning
rSE
Switches to CONTINUOUS mode.
Condensate Drain Warning
drE
Condensate drainage switches to TIMED mode.
Dew Point Sensor Warning
dSE
Th e measured temperature must return within its normal
range.
High Dew Point Warning
Hd
Automatic reset when the dew point = A6 - 4°F (2°C).
HSE
Discharge Temperature Sensor Warning
4
DRD1200-6000
z
é
and
,
[
display
alternatively displays the