2.8.3 CHARGE FAIL INPUT
Minimum Voltage 0 V
Maximum Voltage 35 V (plant supply)
Resolution 0.2 V
Accuracy ±1 % of max measured voltage
Excitation Active circuit constant power output
Output Power 2.5 W nominal at 12 V and 24 V
Current At 12V 210 mA
Current At 24V 105 mA
The charge fail input is actually a combined input and output. Whenever the generator is required to
run, the terminal provides excitation current to the charge alternator field winding.
When the charge alternator is correctly charging the battery, the voltage of the terminal is close to
the plant battery supply voltage. In a failed charge situation, the voltage of this terminal is pulled
down to a low voltage. It is this drop in voltage that triggers the Charge Failure alarm. The level at
which this operates and whether this triggers a warning or shutdown alarm is configurable using the
DSE Configuration Suite Software.
2.8.4 MAGNETIC PICKUP
NOTE: DSE supply a suitable magnetic pickup device, available in two body thread
lengths:
DSE Part number 020-012 - Magnetic Pickup probe 5/8 UNF 2 ½” thread length
DSE Part number 020-013 - Magnetic Pickup probe 5/8 UNF 4” thread length
Type Differential input
Minimum Voltage 0.5 V RMS
Max Common Mode Voltage ±2 V
Maximum Voltage
Clamped to ±70 V by transient suppressers, dissipation not to
exceed1 W.
Maximum Frequency 10,000 Hz
Resolution 6.25 RPM
Accuracy ±25 RPM
Flywheel Teeth 10 to 500
Magnetic Pickup devices can often be ‘shared’ between two or more devices. For example, one
device can often supply the signal to both the DSE module and the engine governor. The possibility
of this depends upon the amount of current that the magnetic pickup can supply.
2.9 OUTPUTS
2.9.1 DC OUTPUTS A & B (FUEL & START)
Type
Normally used as Fuel & Start outputs.
Fully configurable for other purposes if the module is configured to control an
electronic engine.
Rating 10 A resistive for 10 secs, 5 A resistive continuous at 35 V
2.9.2 CONFIGURABLE DC OUTPUTS C, D, E & F
Type Fully configurable, supplied from DC supply terminal 2.
Rating 2 A resistive continuous at 35 V
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