Operating Instructions

Troubleshooting
Electronic Bypass Diagnostic Board
41
Siemens Industry, Inc. BT300 Bypass Operator's Manual DPD01391
Building Technologies 2017-09-28
Table 5: Expected Voltages, Electronic Bypass Diagnostic Test Points.
Test
Point Reference
Expected Voltage
Description
Drive Off
Bypass/
Essential
Services
TP1 TP8 115 Vac 115 Vac 115 Vac Point between OL1 term 96 and M2A-B terminal 3.
TP2 TP8 0 Vac 115 Vac 115 Vac Point between M2A-B terminal 2 and Drive OPT-B5 card
terminal 22.
TP3 TP8 0 Vac 0 Vac 115 Vac Drive OPT-B5 card terminal 23 (M1 coil power).
TP4 TP8 115 Vac 115 Vac 115 Vac Point between OL1 terminal 96 and M1A-B terminal 3.
TP5 TP8 115 Vac 115 Vac 0 Vac Point between M1A-B terminal M2 and Drive OPT-B5 card
terminal 25.
TP6 TP8 115 Vac 0 Vac 0 Vac Drive OPT-B5 card terminal 26 (M2 coil power).
TP7 TP8 – – – Not used.
TP8 TP8 0 Vac 0 Vac 0 Vac Vac Neutral.
TP9 TP8 – – – Not used.
TP10 TP8 – – – Not used.
TP11 TP8 – – – Not used.
TP12 TP15 – – – Not used.
TP13 TP15 – – – Not used.
TP14 TP15 – – – Not used.
TP15 TP15 – – – Not used.