The DSP ( digital signal prosesor ) is giving the message because your soft limits are not setup. It is never a good idea to remove a battery from a controls CPU unless you know what the default bios settings required are and how to set them. When the battery is removed the bios resets to its defaults not necessarily the defaults the control manufacture intended. Remember this is not Like a desktop if the bios is set incorrectly it can cause the machine to react unexpectedly. The soft limits for that control are found under install setup.