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Medium Flow Compressed Air Dryers - IOMI.
Remote Stop / Start Connection
CDAS HL / OFAS HL / FBP HL dryers can be congured to enable remote shut down and start up (Stop / Start) of the dryer. is
requires a 24VDC signal to be supplied to the remote stop digital input (RC) on the control board and setting of DIL Switch 8 on
Dipswitch Array 1 to enable
DIPSWITCH ARRAY (1)
DIL SWITCH FUNCTION OFF ON
8 Remote Stop / Start Remote Stop Inhibited Remote Stop Enabled
• e dryer control board supplies the 24V DC required to
operate the Remote Stop / Start function.
Required for operation:
• An external remote switch (latching type).
• A 2 core twisted screened cable (0.75mm
2
), max length 30m.
• Connect one core of the screened cable from the “+” on the
dryer control board to the remote switch via the screened
cable.
• Connect the other core of the screened cable between the
remote switch and the RC connection on the control board.
Remote Stop / Start Operation
When remote stop / start has been connected and enabled using the DIL
Switch 8 on Dipswitch Array 1, an icon will be shown on the display.
When the remote switch is open, the icon will have a grey background with
a line through it and the dryer will operate normally.
When the remote switch is closed, a 24V DC signal is applied to the digital
input (RC).
e icon background will change from grey to blue and the line will
disappear to indicate that the dryer has been remotely stopped.
e dryer will continue to cycle until the end of the current half cycle then
stop.
e dryer will remain in this state until the remote switch is opened, where
the controller will re-start the drying cycle on a fully regenerated desiccant
bed.
When the dryer has been remotely "Stopped"
• e fault relay(s) will remain energised
• e icon on the display will change to indicate the dryer has been
remotely stopped.
• Energy Saving modes "ECO" & "Purge Economy" are overridden
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