This sequence of events is expected with the present 10.0 and 11.0 hardware design with both a Driver Module and an SSM.
Symptom
Explanation for Multicoil Bias Fault with Head & Body T/R Faults: Head and Body Path Open Unable to scan using a certain phased array coil. The strange thing is we are always seeing Body Path Open and Head Path Open T/R Faults at the same time as a Multicoil Bias Fault whenever we attempt a scan using this coil. We expect only the Multicoil Bias fault if the problem is with this coil. Why are we also getting the Head & Body T/R Faults? What is the real problem we should be looking at here? See Long Description for the error log. Mon Dec 12 19:42:36 2005 2252293 MRISB1 NSP SCP:DCB 1986 The Driver Module Has Detected a Fault. Details of the Fault can be found in other error messages.-> Mon Dec 12 19:42:36 2005 2252301 MRISB1 NSP SCP:DCB 779 Multicoil Bias Fault Detected - Open Circuit. Try re-seating all coil connectors. MCD1 Channel 2 of 16, counting from 1 Value: 197 mA Limit: 198 mA Mask of all failed channels: 0x2-> Mon Dec 12 19:42:36 2005 2249149 MRISB1 NSP SCP:../TrDriverMdsHWO.cpp 1286 T/R driver fault, head path open Possibly a disconnected cable between the driver board and the head T/R network, or an open diode in the head T/R switch. Mon Dec 12 19:42:36 2005 2249151 MRISB1 NSP SCP:../TrDriverMdsHWO.cpp 1302 T/R driver fault, Body Path open Possibly a disconnected cable between the driver board and the body T/R network, or an open diode in the body T/R switch.
Error message
2252301 Multicoil Bias Fault Detected - Open Circuit. Try re-seating all coil connectors. MCDx Channel x of y, counting from 1 Value x mA Limit y mA See Long Description for Extended Error 2252301 MRI_GB_OW0 NSP SCP:DCB 816 Multicoil Bias Fault Detected - Open Circuit. Try re-seating all coil connectors. MCD1 (or MCD2) Channel 1 of 16, counting from 1 Value: 2 mA Limit: 298 mA Mask of failed channels: 0x1 Ch 1-8 : Legacy MC Conn Ch 17-24 : Conn A Ch 25-32 : Conn B-> Extended Error: This fault was detected by the Driver Module. An open circuit fault occurs when the actual value is less than the pre-defined limit. Check system cables, connectors, coils and configurations. Re-seat all coil connectors. The mask of all failed channels indicates additional channels with the same fault - convert the hex number to a bitmap to decipher the mask, with channel 1 indicated by the least significant bit and channel 16 indicated by the most significant bit. For example, a mask of 0x3c converts to 0011 1100, meaning channels 3, 4, 5, and 6 all experienced the same failure. The key at the bottom of the error message shows the MC driver bias channels provided by the Driver Module used with each mult
Applies to
- Models
- Excite, Signa
- Product
- Excite Includes Excite 1 and Excite 2, 10.0, 11.0 and 11.1 Software.
- Software
- 11.0 Only for 1.5T Excite product. 12.0 is Excite HD and 14.0 is Excite HDx. Note, 3T Excite goes with software G3, not 11.0 or 11.1.
- Area
- MR
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