Chapter 5 Relay Ladder Logic Programming 126
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19BAR (Analog-Ramp)
The SG2 smart relay includes 15 AR coils that can be used throughout a pro gram. Each AR coils has 2 modes.
AR mode 1
In mode1, AR current level is changed to either Level 1 or Level 2 according to the ON/OFF state of “Sel coil”
at a specified rate. There are 12 parameters for proper configuration. The table below describes each configuration
parameter, and lists each compatible element for configuring AR.
ABlevelcurrentARvaluecurrentAR /)__(__
The parameters from ② to ⑧ can be constant or refer to the current value of other function. The table below
describes detail information of each parameter of AR.
Sel Selection level “Sel coil” is at OFF state: target level = Level1
“Sel coil” is at ON state: target level = Level2
※ The AR current value just can reach the MaxL if the target level is over it.
St
Stop coil can start-up to decrease the current level to ⑤, start/stop level (StSp + Offset )
once it turns on, and keeping this level for 100ms. Then AR current value goes to 0.
Error output coil The Error coil turns ON when A is 0.
※ The Error output coil can be M, N or NOP. It will do nothing if select the NOP.
AR will keep the current level at “StSp + Offset "B"” for 100ms when it’s enabled. Then the current level raises
from StSp + Offset "B" to target level according to the ⑥,Stepping Rate. If St turns ON, the current value decreases
from current level to the level, StSp + B, in the stepping rate. Then AR stays at this level for 100ms. After 100ms, AR
current level is going to 0, which means AR current value will equal to 0.
symbol Description
①
AR current value: 0~32767
②
Level1:-10000~20000
③
Level2:-10000~20000
④
MaxL (max level):-10000~20000
⑤
Start/Stop level (StSp): 0~20000
⑥
stepping rate (rate): 1~10000
⑦
Proportion (A): 0~10.00
⑧
Offset (B): -10000~10000
⑨
Level selection coil (Sel)
⑩
Stop coil (St)
⑾
Error output coil (M, N, NOP)
⑿
AR code (AR01~AR0F)
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