ANSIB1119

The ANSIB1119 is an on-delay timing unit designed to energize and thus unlock guard locking devices after a preset time delay expires. It can be used with power to unlock devices, like the Allen-Bradley Guardmaster Atlas, Spartan, 440G-MT, or TLS-GD2, on machines which have a run down cycle or do not stop immediately. ANSIB1119 may also be incorporated into other parts of the safety related controls system, should a predictable, on-delay be required. A removable cover allows access to the AC power switch, the replaceable fuse, and the DIP switches & potentiometer which control the timing. Power to the CU1 can be either 24V AC/DC (+/ - terminals) or 110/230V AC (A1/A2 terminals). If 110V AC or 230V AC power is used, an internal switch must be set to the appropriate position.

The ANSIB1119 are designed to monitor the performance of the contactors which isolate the power to the moving parts of the machinery. The timing can not begin until the X1/X2 loop is closed.

The ANSIB1119 must remain closed during the whole timing cycle. Opening the X1/X2 loop during the timing cycle causes the time to be reset to zero. If monitoring is not needed, the X1/X2 loop can be linked.

A typical operation starts with the safety outputs (13/14 and 23/24) open and the X1/X2 loop closed.