Generator control system
Based on VCS183
DS_VCS183
Page 6
Rev. 06
www.fischerpanda.com
©Fischer Panda generators Inc.
Main control unit VCS183
Hardware overview
The main control unit performs generator control, monitors generator and engine and reports all data to
the user via serial bus link. This component interfaces to the various sensors and actors either via direct
link or via other components (KL188, CT186). Details of linkage may depicted from attached wiring
diagram. Below is a brief description of all I/O pins along with specified technical data for that I/O. Pins
are numbered 1..12 in both connectors. Below listing refers to pins by pin number and color of the
connector it is located in (i.e. GN 1 denotes pin 1 in green connector):
Table 1 VCS183 connections
Pin No. Name
I/O/Signal
Usage / Remarks
GN 1
Auxiliary out
Unbiased H switching output
H level =Battery pos. -0.5V /max. 0.4A
Reverse feed and flyback protected
To be used to control an external
ground breaker relay.
Output current monitored by
control system
GN 2
Power supply
negative
Negative potential of power supply.
Provides ground path for actuator,
control system supply and all sensors
Connects to battery negative
GN 3
Stop solenoid Unbiased control output
H level = Battery pos. -0.4V /max. 25A
Protected with flyback diode
Controls stop solenoid or pulling
coil of run solenoid
GN 4
Glow plug 3
Unbiased control output
H level = Battery pos. -0.4V /max. 25A
Protected with flyback diode
Controls glow plug # 3
GN 5
Glow plug 2
Unbiased control output
H level = Battery pos. -0.4V /max. 25A
Protected with flyback diode
Controls glow plug # 2
GN 6
Power supply Positive power supply. Reverse polarity
protected, Peak load 60 A (max. 2
seconds at max. ambient temp. 40°C,
requiring glow plugs to be engaged).
Connect to battery positive.
Control system manages load
(staggering glow plugs, avoid
overlapp
ing w. cranking…)
GN 7
GN 8
Glow plug 1
Unbiased control output
H level = Battery pos. -0.4V /max. 25A
Protected with flyback diode
Controls glow plug # 1
GN 9
Start
solenoid
Unbiased control output
H level = Battery pos. -0.4V /max. 25A
Protected with flyback diode
Controls crank solenoid of the
starting motor
GN 10
Fuel pump
Unbiased control output
H level = Battery pos. -0.4V /max. 8A
Protected with flyback diode
Controls external electric fuel
pump and fuel solenoid. Control
system monitors output current
GN 11
Oil pr. signal
Signal from oil pressure sensor
0…5V, input to the VCS
GN 12
Act. signal
Control signal for actuator
Square wave signal, 0/5V
BN 1
Coolant in
Temperature signal coolant inlet from
NTC temperature sensor
NTC Element with R
25
=100kΩ and
B25/100 coefficient 3988
BN 2
CAN H
Serial data link, CAN H
BN 3
Cyl. head
Temperature signal cylinder head from
NTC Element with R
25
=100kΩ and
