Operating Instructions

SED2 VFD Startup, Operation, and Maintenance Manual
86 Siemens Building Technologies, Inc.
F1
0
1
2
3
4
5
6
7
F2
F1e
F1e
F1e
F1e
F1e
F1e
ACTIVE FAULT
CODES
MOST RECENT
FAULT CODES - 1
MOST RECENT
FAULT CODES - 2
MOST RECENT
FAULT CODES - 3
Figure 40. Display of Fault History.
• For example:
If the SED2 trips on undervoltage and then receives an external
trip before the undervoltage is acknowledged, you will obtain:
Index 0 = 3, undervoltage
Index 1 = 85, external trip
Whenever a fault in index 0 is acknowledged (F1e), the fault
history shifts as indicated in the diagram.
• Indexes:
r0947[0] = Recent fault trip –, fault 1
r0947[1] = Recent fault trip –, fault 2
r0947[2] = Recent fault trip -1, fault 3
r0947[3] = Recent fault trip -1, fault 4
r0947[4] = Recent fault trip -2, fault 5
r0947[5] = Recent fault trip -2, fault 6
r0947[6] = Recent fault trip -3, fault 7
r0947[7] = Recent fault trip -3, fault 8
Index 2 is used only if a second fault occurs before the first fault
is acknowledged.