"Jia" brand is divided into a wind-up timer, the motor type and electronic system
Column, "jia" brand micromotor is divided into synchronous motor, step motor and cover pole motor
And asynchronous motor, etc. Today to introduce the next timer class.
Many people need to control time job much easier. Even will decide
When used in the military also has no small achievement, the time bomb is very good
Example. Now many electrical appliances are installed timers to control switch or at work
Between. The small make up to you to introduce the kinds of timer:
One type, through to delay timer: through type delay timer is the most in all kinds of PLC
The most basic common timer, this timer in the PLC of SIEMENS, said
For SD timer
Second, disconnect the delay timer: this timer is when the input conditions for 00000
ON without delay, only 00000 to OFF when the condition of input delay
To use. In the PLC of SIEMENS, called SF type timer
Three, keep on delay timer: this timer is when the input conditions
After 00000 to ON, namely the latch function, even if the input conditions and into 00000
OFF, still see to ON input conditions, when the current value of the timer is equal to the set value
, timer, this timer in the PLC of SIEMENS, referred to as the SS type
When the device
Four, pulse type timer: this timer is when the input conditions after 00000 is ON
Instant action, timer, but after the timer set by time, even if lose
Into the condition of 00000 is still ON, but timer into OFF state. Namely the timer
ON the state of the maintain time is determined by the set value. If 00000 to ON time
Duration less than the set value of the timer, timer ON state to maintain time to lose
Into the conditions for the duration of the ON 00000. This kind of timer in SIEMENS PLC
Type, called SP timer.
Five, the divergent pulse timer: this the difference between the timer and pulse type timer
00000 is, as long as the input conditions appeared ON state, regardless of its duration
Long, all can make the timer to ON time to maintain and timer value
. The timer in the PLC of SIEMENS, called SE type timer. |
