INSTRUCTION MANUAL
UG30 CONTROL
mP30-UG30 - Rev. 1.5 - Date: 18-03-2004 EN
37 (44)
DELAYS DUE TO ALARM SIGNALS
Some alarm signals can be delayed with respect to the activation of a component to allow stable operating
conditions to be reached – for example:
Alarm A:FL (airflow absent or presence of fire-smoke) is not read during the first 30 seconds after fan start; this
value is linked to the FACTORY P1 parameter.
Alarms LO:C1 and LO:C2 (1/2 circuit low pressure) are not read during the first 180 seconds after start-up of
the relevant compressor. This value is linked to the FACTORY parameter P3.
ALAR ALARM
Minimu
m
Maximum Measurement
unit
Default
PA
Delay of low/high temperature/humidity alarm at start-up.
This establishes the delay in recognising low/high temperature and humidity
alarms at UNIT start-up. N.B.: The low humidity alarm is delayed at humidifier
start-up. This is to avoid a low humidity alarm when a possible humidifier
alarm is reset.
0 150 min 15
PC
General alarm delay. This establishes the activation delay of the ID5 general
alarm.
0 250 sec 0
P1
This establishes the delay in recognising the flow alarm from start of fan. 0 250 sec 30
P2
This establishes the delay in recognising the flow alarm while the fan is
operating.
0 90 sec 3
P3
This establishes the delay in recognising the low pressure alarm at
compressor start-up to allow reaching a stable situation.
0 250 sec 180
SERIOUS ALARMS
Two different types of alarm warnings are available: "serious " and "non-serious" alarms (see section
"DESCRIPTION OF ALARM CODES ").
In a configuration with more than one unit connected, serious alarms trigger the activation of the DO7 relay and
therefore the activation of the unit in stand-by.
In a configuration with no unit rotation, the FACTORY parameters HA and HF can be changed, in such a way as to
have two different alarm signals:
- "serious alarms" through the general alarm relay DO6;
- "non-serious alarms" through the dehumidification relay DO7 (CW/S and DX/S only).
GLb GENERAL
Min Max Default Setting to manage 2
alarms
HA
Configuration of digital output DO7:
2 = alarm relay for not critical alarms (follows the logic
set through the parameter HF)
3 = output for rotation control
0 3 3 2
HF
Alarm relay logic:
0 = de-energise in alarm for all the alarms
2 = de-energise in alarm only for the serious
alarms
0 3 0 2
ACTIVE ALARMS
When an alarm occurs, the control performs the following actions:
• displays the
symbol and the alarm code;
• de-energize the DO6 relay (general alarm); the relays functioning logic, normally energised
or de-energised, and the alarm category that activates this relay is set by the HF parameter
(default equals 0);
• (in JUPITER CW/S and DX/S units, if HA is set to 2) relay D07 de-energised (non-serious alarm); relay
logic, normally energised or de-energised, is defined by parameter HF (default setting is 0);
• lights up the red light of key
;
• activates the buzzer (if the USER P4 parameter is set at a value other than zero).
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