Difference between Protect, Permission and Interlock

Thank you for your reply. From your answer, I think that the process condition has to be connected to "Intlock", the electrical protection signal of the motor to "protection", the first two need to be both "allowed". Is that correct?

Once the interlock condition is fully loaded, the drive is in a safe position. If the interlock condition is no longer satisfied, the drive can be restarted. There is no need to reset. Logic "1" indicates a good condition. A logical "0" indicates that the interlock state is full

When enabled, "Permit = 1" is set. Drives can be exchanged from a safe place by operator interaction or interconnection. If the block is not in a safe place, it will not function even when the power is turned on.

If there is an active interlock condition (protection = 0), the switch is forced. It is necessary to reset after this condition disappears

There are various ways to perform a reset. Detailed information can be found in the manual or online help (description of function bits 9 and 31).

According to NFPA 13 (7.3.2.1), there are three types of proactive system. Single interlock, non interlock, and double interlock. The single interlock system is a system that allows water to enter the pipe when the test equipment is running. The non-interlocking system allows water to pass while the detection device or the automatic sprinkler head is operating. Both single system and non-interlock system will be activated with one event. When the automatic sprinkler head and the detection device are operating, the dual interlock system only allows water to enter the system, which means that it starts later than the other two types of pretreatment system means. When the dual interlock system is activated, two sequences of events must occur.

In addition to the use of automatic sprinklers, the double interlock system behaves like a rain shower system. These systems require "previous" fire detection events, usually heat or smoke detector operation, and automatic sprinkler action, before "operation" of the piping of the water intake system. If you activate and activate the sprinklers separately or without operating another fire detector, water can not enter the pipe. Since water does not enter the pipeline before the sprinkler is operated, the double water interlock system is considered a drying system from the viewpoint of water supply time and requires a larger design area.