Standard Cleaning Process; Warning-Alarm Output Q4; Standby (Ready) Indicator - Nederman L-PAK Series Manual

Example: 2 Cleaning pulses
On=2, Tch=5, Tpu=1 → On * (Tch + Tpu) = 2*(5+1) =12s where Tch=05:00s and Tpu=01:00s.
The default time for a complete cleaning cycle is 12 seconds
6.3

Standard Cleaning process

The filter cleaning process is always activated after the pilot signal (PS) or (PSIFC) has
disappeared and DIR Time has elapsed.
If flushing function is activated, flushing will be done before filter cleaning takes place.
The filter cleaning valve opens and the filter cleaning process generates a preset number of
cleaning pulses. The unit then goes into Idle mode keeping cleaning valve open.
See function in section 6.2.6. Clean cycle to set numbers of pulses and related parameters.
See function in section 6.2.5. FCTmr to activate Timer controlled Filter cleaning.
6.4

Warning-Alarm output Q4

Potential free output Terminal X1:33-34.
When an alarm is activated, Output Q4 and White lamp button on the control box side
flash with interval 1 second on / 1 second off .
Warning -Alarm Output Q4, switch with an interval 1 second on / 1 seconds Off, if one or
more of the alarms listed below are active:
The fan temperature is over 125°C see section 5.3.1. Alarm! Fan Hi Temp.
•
• The motor is overheated see section 5.3.2. Alarm! Motor Protector Activated.
• The compressed air level is low see section 5.3.3. Alarm! Low Pressure CAS.
Warning -Alarm Output Q4, switch with an interval 1 second on /3 seconds Off, if one or
more of the warnings listed below are active:
Warning Fan Hi Temp see 5.2.2. Warning! Fan Hi Temp.
•
6.5

Standby (Ready) indicator

The H1 lamp/Output DO1 acts as a Standby (unit ready) indicator. The H1 Lamp/DO1 is
activated when the unit is in Standby mode or the fan is running. The H1 lamp/Output DO1
is available on terminal X1:3 and X1:4 for remote indication.
L-PAK 150/250 Standard EN
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