Manual 26185
TecJet 110 Fuel Metering System
Woodward
7
PWM Input
K = PWM input (+)
L = PWM input (–)
The PWM input is configurable as the mass flow demand input. The PWM Input
is designed to be used with a push-pull type driver.
Input Magnitude:
7–32 V differential input
Input Impedance:
40 k
Ω
Input Type:
Single-ended, ground referenced
Frequency
Range:
80–1100
Hz
Isolation:
none
Resolution:
12
bits
Accuracy:
1.5% of full scale @ 25 °C
Temperature
Drift:
300ppm/°C
Input Common Mode Range:
At least ±50 V
Safe Input Common
Mode Voltage:
At least ±50 V
CAN ID Inputs
H = CAN ID 1
G = CAN ID 2
J = Discrete/RS232 Common
The CAN ID inputs are used to select which CAN identifiers will be used on the
CANbus. With no programming tools, the customer can select from the four pre-
programmed CAN IDs through a hard-wired code in the engine harness. This is
especially important where more than one TecJet 110 is used on an engine. If
one TecJet 110 valve is replaced with another, the new valve will read the correct
ID number from the engine harness connector. See the table below for the code
definition.
TecJet 110 CAN ID
CAN ID1
CAN ID2
“TecJet 1”
B or Open
B or Open
“TecJet 2”
Discrete Common
B or Open
“TecJet 3”
B or Open
Discrete Common
“TecJet 4”
Discrete Common
Discrete Common