Index: /trunk/FACT++/src/biasctrl.cc
===================================================================
--- /trunk/FACT++/src/biasctrl.cc	(revision 18799)
+++ /trunk/FACT++/src/biasctrl.cc	(revision 18800)
@@ -276,7 +276,7 @@
             if (!fEmergencyShutdown)
             {
-                if (fCurrent[id]<0)
+                if (fCurrent[id]<0 && id!=91)
                 {
-                    Warn("OverCurrent detected.");
+                    Warn("OverCurrent detected (first ch="+to_string(id)+").");
                     fEmergencyShutdown = true;
                 }
@@ -284,5 +284,5 @@
                 if (fEmergencyLimit>0 && fCurrent[id]>fEmergencyLimit && !fEmergencyShutdown)
                 {
-                    Warn("Emergency limit exceeded.");
+                    Warn("Emergency limit exceeded (first ch="+to_string(id)+").");
                     fEmergencyShutdown = true;
                 }
@@ -443,5 +443,5 @@
             bool oc = false;
             for (int ch=0; ch<kNumChannels; ch++)
-                if (fPresent[ch/kNumChannelsPerBoard] && fCurrent[ch]<0)
+                if (fPresent[ch/kNumChannelsPerBoard] && fCurrent[ch]<0 && ch!=91)
                     oc = true;
 
@@ -1497,5 +1497,5 @@
     {
         for (int ch=0; ch<kNumChannels; ch++)
-            if (fPresent[ch/kNumChannelsPerBoard] && fCurrent[ch]<0)
+            if (fPresent[ch/kNumChannelsPerBoard] && fCurrent[ch]<0 && ch!=91)
                 return true;