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Close the "PSC Serial Data" screen, then
double-click "PSC Analog Inputs".
Verify that the analog and digital values are
similar to the example in Figure 3-5.
With the retarder pedal not depressed, verify
that the "RETARD PEDAL" signal is
approximately 1.5 volts.
With the retarder pedal fully depressed, verify
that the "RETARD PEDAL" signal is
approximately 8.5 volts.
E3-14
FIGURE 3-5. PSC ANALOG INPUTS SCREEN
AC Drive System Electrical Checkout Procedure
(Version 21 Software)
With the retarder lever fully up (OFF position),
verify that the "RETARD LEVER" signal is
approximately 0 volts.
With the retarder lever fully down, verify that the
"RETARD LEVER" signal is approximately 8.75
volts.
The "ENGINE LOAD" signal should be either
50% if the PWM load signal is being used or 5.0
volts if the analog load signal is being used. This
indicates a 0 HP adjust level with the engine off.
10/06 E03018
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