Ottmr; Pneumatic Filter Cleaning Valve; Filter Cleaning Button; Filter Cleaning In Standby Mode - Nederman FlexPAK 800 Bedienungsanleitung

7.2.4 OTTmr
EN
Menu for setting the overtime timer. If the unit needs to be used after the weekly timer has expired, the unit
can be turned on for a set number of hours by pressing the external standby button. When the OTTmr expires,
the machine goes back into Off mode.
If the unit is in Off mode and the weekly timer is not used, quickly pressing the external standby button (less
than 2 seconds) puts the unit into Standby mode for the time set in 'T', for example, two hours. See the figure
below.
If the unit is in Standby mode and the weekly timer is not used, quickly pressing the external standby button
(less than 2 seconds) puts the unit into Off mode after the time set in 'T', for example, two hours. See the figure
below.
If the weekly timer is being used, quickly pressing the external standby button (less than 2 seconds) keeps
the unit into Standby mode for an additional two hours after the closing time set in the weekly timer, see
tion 7.2.3 Weekly timer.
• To reset OTTmr so that the time is not extended, press the external standby button longer than 2 seconds and
then release.

OTTmr

T = 2:00h
Ta = 00:00s
8 Pneumatic filter cleaning valve
8.1 Filter cleaning button
The filter cleaning button will only work when the sys-
tem is in Standby mode or Running mode.
8.2 Filter cleaning in Standby mode
Perform a filter cleaning in Standby mode as follows:
1 From Off mode, put the unit into Standby mode by
pressing the Standby/Running button.
2 Start filter cleaning by pressing the filter cleaning
button.
The unit goes into Running mode, the motor starts
and the FCV closes and vacuum is established in the
system. The unit will now open and close the FCV once
and then leave the FCV in its open position. After the
cleaning cycle, the unit goes into Idling mode. The unit
waits for a pilot signal for 10 minutes. If the pilot sig-
nal is not received during this time, the unit will stop
its motor and go into Standby mode.
• To perform a new filter cleaning in Idling mode, ac-
tivate the pilot signal and enter Running mode,
or toggle the Standby/Running button to go to
Standby mode and press the filter cleaning button
again.
30
FlexPAK 800/1000
1/1
ESC
T=02:00h: Extra time before the unit goes into Off
mode. The default setting is 2 hours.
Ta=00:00: The elapsed time since the overtime timer
started.
OK
8.3 Filter cleaning in Running mode
Perform filter cleaning in Running mode as follows:
1 Put the system into Standby mode by pressing the
Standby/Running button.
2 Activate the pilot signal by connecting terminals
X1:13 and X1:14 with a jumper. The unit goes in-
to Running mode. The motor starts, the FCV closes
and pressure is established in the system.
3 Start the filter cleaning by pressing the filter
cleaning button.
The unit will now open and close the FCV 3 times and
then leave the FCV in its closed position. After the last
cleaning cycle, the unit returns to Running mode and
waits for the pilot signal to stop. It is possible to per-
form multiple filter cleaning cycles in Running mode.
When the pilot signal stops, the unit runs for 10
seconds (DIR time) and then opens the FCV and goes
into idling mode. The unit waits for a pilot signal for 12
minutes. If the pilot signal is not received during this
time, the unit will stop the motor and go into Standby
mode.
The idling time is set by the SSR timer and default is
12 minutes. DIR time is the delay after the pilot signal
has stopped before opening the FCV. The default is 10
seconds.
Sec-