Advertisement
NOTE: This input is present
on both the Ignition Mod-
ule and Display Module; a
grounded condition at either
module takes precedence.
10.0 DISPLAY MODULE ELECTRICAL HOOKUP
10.1
GENERAL:
Take care not to damage the wiring insulation and take precautions
against damage from vibration, abrasion or liquids in conduits. In
DO NOT
addition,
nications wires in the same conduit as the ignition wiring or other
high energy wiring such as AC line power, etc. Keep wires at least 12
inches away from all high voltage wiring.
10.2
POWER:
Power input must come from the Power Module to the Display Module
and connect to terminals 1 (+) and 2 (−),
device directly to the ignition system common coil ground.
IMPORTANT:
To insure that both Power and Display Modules oper-
ate at the same ground potential, it is imperative to use the "daisy
chain" hookup shown on
rent requirement of the Power Module, this hookup eliminates the
possibility of the Display Module operating at a higher voltage level.
Altronic 4-conductor shielded cable, part no. 503194-500, is recom-
mended as shown on
10.3
COMMUNICATIONS:
The Display Module communicates to the Ignition Module via the two
serial RS-485 communication wires. Use a shielded cable of fine gauge
stranded wire for connection from the Display Module, terminals 3 (+) and
4 (−), to the Ignition Module, terminals 7 (+) and 8 (−). Connect (+) to (+) and
(−) to (−). Connect the shield to the terminal marked SHIELD in the Igni-
tion Module only. In addition, the 791908-1 (Dual Port Display Module)
and the 791909-1 (Enhanced Display Module) have an auxiliary Modbus
RTU RS-485 port for the customers use at terminals 6(+) and 7(-).
IMPORTANT:
Per
part no. 503194-500, to connect the power and RS-485 communica-
tions wires between the Power and Display Modules.
10.4
MISCELLANEOUS INPUT:
The miscellaneous input in the Display Module (terminal 8) performs
the same operations as in the Ignition Module. It is a normally open
input that when grounded provides the ability to activate various
user selected features. The default feature is the one-step retard.
The other available features are the multi-strike and max. energy
level; any of these features can be used, but must first be configured
through a PC using the terminal program. For programming and
operating details, refer to the CPU-95 Operating Instructions, form
CPU-95 OI, and Terminal Program User Instructions, form CPU-95 PI.
10.5
CURRENT LOOP INPUT:
The 4-20mA timing control input, terminals 9 (+) and 10 (−) accepts a
4-20 mA loop current from various 2-wire or 3-wire sources. The loop
input is electrically isolated from all other terminals. Use 24 AWG, UL
style 1015 wire, Altronic part number 603102 (black) or 603103 (white),
or equivalent for these connections.
details and timing curve
INSTALLATION INSTRUCTIONS
run low voltage power, current loop, or commu-
SEE FIGURE
FIGURE
11. Due to the much higher cur-
FIGURE
11.
FIGURE
11, use Altronic 4-conductor shielded cable,
SEE FIGURE 11
FIGURE
12.
www.altronicinc.com
SEE FIGURE 11
11. DO NOT ground this
for connection
7
Advertisement
