请教各位大虾

请教各位大虾：
      我用orcad里的pspice仿真电路时总是出这样的错误：
     ERROR -- Convergence problem in transient analysis at Time =  6.006E-03
         Time step =  1.025E-15, minimum allowable step size =  7.000E-15

  These supply currents failed to converge:

    I(X_IGBT1.XDIO.EXJ)       =   114.24uA  \   113.99uA
    I(X_IGBT1.XDIO.EJUNCT)    =    2.450uA  \    2.455uA
    I(X_IGBT1.XDIO.VDXJ)      =  -114.24uA  \  -113.99uA
    I(X_IGBT1.XDIO.VIJCT)     =   -2.450uA  \   -2.455uA
请问各位大师是怎么回事啊？？？在线等回复！！