The ASM160 is a pilot duty device. The outputs are designed for control only.
1.
Wire the ASM160, using 14 AWG (2.5 mm
2
) stranded wire. When wiring to
terminal 18 (the common power for the external relay loads), we suggest using
larger wire size (12 AWG [4.0 mm
2
]).
2.
When hooking the battery positive (+) and ground wires to the ASM160, route
them directly from the battery to the unit. This will help reduce electrical noise
coupling and avoid voltage losses from other devices.
3.
If a standby battery charger is installed, it must be wired directly to the battery,
NOT to the ASM160. This could cause electronic "noise" produced by the
charger to be coupled into the microprocessor. If the "noise" is severe, erratic
operation will occur.
4.
Do not route low voltage DC (battery) control wires in the same conduit as
high voltage AC wires.
5.
Use shielded cable for connecting the magnetic pickup to the ASM160.
Ground only one end of the shield (suggest to ground it at the engine).
6.
Always place reverse bias diodes across inductive loads (see “Typical Wiring
Diagram”, Note: 2, below). This increases the contact life and helps eliminate a
source of electromagnetic noise.
7.
Output terminals 1 and 2 are rated for 5 A. Output terminals 3, 4, 5, 6, 7 and 8
are rated for 300 mA sinking.
WARNING:
Disconnect ALL electrical power before beginning the wiring. STOP ALL machinery before performing the hook up.
Any load connected to the panel which exceeds current ratings MUST be piloted at the load.
Solenoid
Fuel Valve
Glowplug/At load
Pilot Relay
Closed Switch
For Lamp Test
Starter
Assembly
To Battery (+)
Pilot
Relay
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
Auto
Off
Test
Selector
Switch
Magnetic
Pickup
12/24VDC
Battery
Oil Pressure
Oil Pressure
1
2
4
2
3
3
3
3
3
H
2
O Temp.
H2O Temp.
Crank
Fuel
Test
Auto
Spare (delayed)
Spare (immediate)
Relay Com. (B+)
Gnd (-)
Mag. P/U
Overcrank
Crank Disconn. Adj.
Overspeed
Overspeed Adj.
Cooldown Delay
Glowplug / Warmup Delay
Number of cranks
Warmup or Glow Plug
Mode Select
Run
Lamp Test (IN)
At Load/
Glow Plug
Remote
Start/Stop
Switch
Shielded
Cable
Ground or
Positive Input
Ground or
Positive Input
F-1
15 Amp
Ground or
Positive Input
Ground or
Positive Input
Battery Cable
12 AWG (4.0 mm
2
) min.
These Shutdowns
are locked out during
shutdown lockout delay
This Shutdown
is immediate with
no LED indication.
1
NOTES:
Close to start and run, open to stop.
2
For Pilot Duty Only. External Load not to exceed 5 A.
Place reverse bias diodes across induction loads.
3
Remote lights (if used) not to exceed 300 mA.
4
At Load/Glow Plug Relay not to exceed 300 mA.
WIRING THE ASM160
MAKING ADJUSTMENTS TO THE ASM160
Typical Wiring Diagram
On the back of the ASM160, you will find four
(4) potentiometers and three (3) DIP switches
for customizing your controller. The four
potentiometers are designated as follows:
R1 = Overspeed Adjustment
(30-8500 Hz)
R2 = Crank Disconnect Adj.
(30-8500 Hz)
R3 = Glow Plug or Warmup
Delay (1-300 seconds)
R4 = Cooldown Delay
(1-300 seconds) not used when
Glow Plug feature is selected.
Overspeed (R1 Pot)
The OVERSPEED pot is used to set the point at
which the unit will signal for a shutdown if the
engine speed should reach excessive RPM.
To set the OVERSPEED value, turn the OVER-
SPEED Pot (R1) fully clockwise and run the
engine up to the maximum operating speed.
Next, slowly turn the Pot (R1) counterclock-
wise until the engine shuts down on OVER-
SPEED. Now, turn Pot (R1) clockwise two
turns. This will adjust the OVERSPEED set-
point slightly higher than the maximum engine
operating speed.
Potentiometers
DIP Switches
4
7
8
9
10
1 2 3
ON
R1 R2 R3 R4
25 Turn Pot
ASM160 Module
Back View Detail
Potentiometer
Detail
2
