Signal connection
49
imc CANSAS Getting Started - Doc. Version 1.9 - 05.12.2014
© 2014 imc Meßsysteme GmbH
3.3.3 IGN terminals (BNC)
CANSAS-IGN: BNC inputs
CANSS-IGN: CAN-connector and analog/digital
outputs
4 isolated BNC sockets for
4 isolated input channels:
o
SPARK: connector for the ignition signal
o
ANGLE: connector for the crankshaft sensor
o
REF: If an incremental counter is used as
the crankshaft sensor, the counter's zero-
output is connected here.
o
CAM: The camshaft sensor is only
connected to this input in the case of
Monitoring of Selected Cylinders. This
returns one pulse per revolution of the
camshaft.
Uniform conditioning is provided for all 3
signals: voltage isolation, bandwidth approx.
600 kHz, 40 V input range.
This terminal provides the analog and digital outputs and
auxiliary power supply. The outputs and power supply
are not isolated against the module's power supply.
Pin
Signal
Reference
1
TTL1 (Spark)
Pin 9
2
TTL2 Crankshaft
Pin 10
3
TTL3 (Ref)
Pin 11
4
TTL4 (CAM)
Pin 12
5
+5 V (max. 200 mA)
Pin 13
6
+12 V (max. 100 mA)
Pin 13
7
DAC1 AngleOut ( ignition angle)
Pin 15
8
DAC2 SpeedOut (RPMs)
Pin 15
9
Digital Ground 0 V
10
Digital Ground 0 V
11
Digital Ground 0 V
12
Digital Ground 0 V
13
Ground 0 V
14
not connected
15
Analog Ground 0 V
