11
FIGURE 2.
PROGRAMMER DISPSWITCH SETTINGS
NOTE:
The dipswitch settings become permanently stored within the programmer’s eeprom memory
after 8 hours of continuous electrical operation.
The first 8 hours of continuous operation is determined from the value of system hours being accu-
mulated by the MicroM. System hours are stored to memory (eeprom) automatically every 1,000 min-
utes or at the occurrence of a lockout. Therefore, any lockout that occurs during the first 8 hours will
cause the system hour value to become the time when the last lockout occurred. If power is removed
and restored, the continuous 8 hours feature will be reduced by the time when the lockout occurred.
This allows sufficient opportunity to make the appropriate selection, test and checkout the system.
Once stored, the settings cannot be altered.
The MEP200 and MEP500 series programmers have a series of 6 dipswitches (see Figure 3) which
allow the user to program the purge timing, trial for ignition timing, enable post purge, enable proof
of air flow open at start and select recycle/non-recycle operation.
MicroM Programmer Dip Switch Configuration
Note:
C refers to switch closed position, closed position is when the switch is toward the printed cir-
cuit board. O refers to switch open position or when the switch is moved away from the printed cir-
cuit board. Indicating arrow on top of programmer cover points toward closed position.
SWITCH
FUNCTION
NOTES
6
5
4
3
2
1
* The MEP561
Programmer mod-
ule has selectable
purge
timings of 7, 10,
15 and 30 sec-
onds.
C
C
7
PURGE*
TIME
SECONDS
C
O
30
O
C
60
O
O
90
C
DISABLED
POST**
PURGE
** The MEP290
Programmer mod-
ule has selectable
post purge of 90
seconds.
O
15 SECONDS
C
5
PTFI
TIME
O
10
C
DISABLE
PROVE AIR
FLOW OPEN
AT START
O
ENABLE
C
RECYCLE
O
NON-RECYCLE
Replaceable
Fuse Location
