DSE 8610 MKII, Operator'S Manual

Page: 21 / 188

Specification
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2.7.4 CHARGE FAIL INPUT
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.
Description Specification
Minimum Voltage 0 V
Maximum Voltage 35 V
Resolution 0.2 V
Accuracy ±1 % of full scale
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
2.7.5 MAGNETIC PICK-UP
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
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.
Description Specification
Type Differential input
Minimum Voltage 0.5 V RMS
Maximum Voltage 70 V RMS
Max Common Mode Voltage ±2 V peak
Minimum Frequency 5 Hz
Maximum Frequency 10,000 Hz
Resolution 6.25 rpm
Accuracy ± 25 rpm
Flywheel Teeth 10 to 500