This controller can send three kinds of fault signal of"prolong filling time","oil level low""overload operation",has a connection point outsde to send operation(stop,working,fault)signal of lubrication system to the main machine or main controller room.
Appearance and dimensions：
| No | code | show | No | code | show |
| 1 | 30GA | electric source | 5 | 30GF2 | oil level low |
| 2 | 30GS | stop | 6 | 30GF3 | overload operation |
| 3 | 30GB | operating | 7 | 3-88G | optional operation |
| 4 | 30GF1 | prolong filling time | 8 | 3-30GF | fault recover |
