IDEC FS1A Controller - Manual (Page 100)

5-59
Logic 7: Partial stop 1 logic for various machines
Overview (Logic 7)
The logic described is for safety protective measures of the equipment which has 2 separate
devices that are stopped by safety outputs independently, such as semiconductor
manufacturing machines, and food packaging machinery. When the 2 devices can not be
stopped at the same time or it is not necessary, the 2 safety outputs can be controlled
separately. This logic enables the connection 5 dual channel direct opening inputs.
When in the state in which safety input 1 corresponds to safety output 1 and 2, and safety input
2 and 3 corresponds to safety output 1 can receive safety input signals (the contacts of the
connected safety devices are ON), safety output 1 is turned ON upon input of a start input.
When in the state in which the safety input corresponds to safety output 1 and 2, and safety
input 4 and 5 corresponds to safety output 2 can receive safety input signals, safety output 2 is
turned ON upon input of start input.
While safety output 1 and 2 are ON, if an input signal of safety input 1 has been shut OFF (the
contact of the safety device is OFF), safety outputs 1 and 2 are turned OFF after a preset
OFF-delay time.
If a safety input signal to safety inputs 2 or 3 is turned OFF, then safety output 1 is turned OFF. If
the safety input signal to safety input 4 or 5 is turned OFF, then safety output 2 is turned OFF.
Note: Refer to "Logic circuit" for the details of safety inputs 1, 2, 3, 4, 5 and safety output 1, 2.