Front Panel Overlay – Level 1 Controller - Gardner Denver DGH Series Instruction Manual

6. Controller – Level 1
not desired. Installed in the ON position when automatic power
recovery is desired.
•
Jumper J4 installed in the OFF position – Automatic power
recovery is turned off. The controller returns to the off state
when interrupted power to the controller is restored.
•
Jumper J4 installed in the ON position – Automatic power
recovery is turned on. The controller remembers its state
(on or off) prior to a power interruption and returns to that
6.4 Front Panel Overlay – Level 1 Controller
Left tower pressure
switch LED:
On=switch closed
Off=switch open
Left tower drying LED
Left purge valve LED
On=valve open
Off=valve closed
Left inlet valve LED
On=valve open
Off=valve closed
Left tower regenerating
LED
Filter service /
maintenance LED
Operating mode LEDs
ISO Class 1 – 4
Operating mode
selector switch
Operating mode LED
Manual (test) mode
Communications icon
Power On LED
Power On / Off Switch
6. Controller – Level 1
-100°F/-73°C
-40°F/-40°C
-4°F/-20°C
+38°F/+3°C
Front Panel Overlay –Level 1 Controller
(Note: Figure is representative of Models 40 through 450. Overlay for
Models 590 through 5400 depicts a different outlet/purge circuit.)
state (at the beginning of the prior ISO operating cycle)
when power is restored. If power is interrupted while the
controller is in the Manual cycle mode, the controller will
return to the prior ISO operating cycle and not the Manual
cycle when power is restored.
Figure 6-1
- 18 –
Filter service /
maintenance LED
Filter service /
maintenance LED
Right tower pressure
switch LED:
On=switch closed
Off=switch open
Right tower drying LED
Right purge valve LED
On=valve open
Off=valve closed
Right tower
regenerating LED
Right inlet valve LED
On=valve open
Off=valve closed
Energy (purge) savings
LEDs
Energy savings icon
Energy/purge savings
selector switch
Maintenance / service
reminder LED
Alarm LED
Reset switch for alarm
and maintenance
reminder – Advance
switch for manual cycle