3-2 Troubleshooting Guide
TP-5672 11/95
Problem Refer to Section 5—Accessory Troubleshooting
Controller will not sense three-phase emergency voltage Phase sequencer, accessory DD-05
The generator set does not start when the test switch is in the
engine start position
Test switch, accessory DD-06 and DD-07
The generator set does not start when the test switch is in the test
position
Test switch, accessory DD-06 and DD-07
The normal-to-emergency time delay pushbutton does not work Time delay override, accessory DD-08
The emergency-to-normal time delay pushbutton does not work Time delay override, accessory DD-08
The auxiliary dry contacts relay boards do not operate Relay auxiliary dry contacts, accessory DD-14
The analog meters are not working Meters, accessory DD-18
The battery charger is not working Battery charger, accessory DD-24
The manual transfer to emergency source does not work Manual operation switches, accessory DD-29
The manual transfer to normal source does not work Manual operation switches, accessory DD-29
The manual transfer to off does not work Manual operation switches, accessory DD-29
The auto/manual switch does not work in the manual position Manual operation switches, accessory DD-29
The auto/manual switch does not work in the auto position Manual operation switches, accessory DD-29
The load shed contacts do not work Load-shed contacts, accessory DD-35
Problems with remote communication exist Remote communication—RS/232 or RS/485, accessory
DD-51
Figure 3-2. Accessory troubleshooting chart