9 restoring the controller to factory setup, On the left circuit board. it should be, It is marked – AEC HE Mass Flow Series Drying hoppers User Manual
Page 32: They are marked, Sw201 setup configuration, Sw101 {protect, S201 (heat), Sw202, Pulse, Sw205
HE
• CHE • BCHE Mass Flow Series Drying Hoppers
Page 31
5-9 Restoring the Controller to Factory Setup
If the controller pre-set parameters have been tampered with and it no longer controls
temperature properly, restore the factory setup using these procedures:
1. Turn off the power switch on the graphic display and remove all electrical power to the
dryer.
2. Press up the latch at the bottom of the control module front panel and slide out the control
chassis.
3. Locate the slide-type lockout switch marked
SW101 {PROTECT}
on the left circuit board. It should be
OFF
.
4. Make sure the control output relays are installed on the right-hand circuit board. Your
unit uses one E53-S solid state relay (SSR) mounted in the socket marked
S201 (HEAT)
.
This relay switches the heater on and off.
5. Set the output selector switch marked
SW202
to
PULSE
. This slide-
type switch is near the control output socket.
6. Set the rotary-type alarm mode selector switch marked
SW205
to Position
2
for
upper limit alarm only.
7. Set the rotary-type ALM2 switch marked
SW203
to Position
0
, the No Alarm
function.
8. Set the rotary temperature sensor selector switch to Position
2
. It is marked
SW206 (INPUT TYPE)
and is on the right-hand circuit board.
Your unit is factory-equipped with Type K thermocouples; six (6) other
temperature sensor types can be used if the switch is properly set.
9. Set both transmission output selector DIP switches to
OFF
. They are marked
SW207
(TRANSFER)
and are on the right circuit board on controls equipped with optional
communications. See the Communications Manual (AEC Part No. A0535959) for more
information.
10. The function selector DIP switch marked
SW201 (FUNCTION)
selects six control modes.
It is located on the right-hand circuit board. Put this switch in the setup configuration (see
the table below) when you enter the initial control parameters.
SW201 Setup Configuration
Switch Position
Description
1 OFF
Control
mode
2 OFF
Normal/reverse
output
3 OFF
Input
shift
4
OFF
Temperature sensor standard
5
ON
Scale indication — ºF
6
ON
PID constant indication
OFF
ON
SW101 {PROTECT}
OFF
ON
PUL-CUR
0
1
2
3
4
5
6
7
8
9
SW205
0
1
2
3
4
5
6
7
8
9
SW203 [ALM]
0
1
2
3
4
5
6
7
8
9
SW206 (INPUT TYPE)