IDEC SmartRelay functions
166
IDEC SmartRelay Manual
Calculation rule
• When you set a negative differential value
∆, the On
threshold ≥ Off threshold, and:
Q = 1, if the actual value Ax > On
Q = 0, if the actual value Ax ≤ Off.
See the timing diagram A.
• When you set a positive differential value
∆, the On
threshold < the Off threshold, and Q = 1, if:
On ≤ actual value Ax < Off.
See the timing diagram B.
Preset of the Par parameter
The gain and offset parameters are used to adapt the sen-
sors to the relevant application.
View in programming mode (example):
Press
View in parameter assignment mode (example):
B3 1+
On =+04000
∆ =-02000
Parameter protection mode
On/Off threshold
Differential value for the on/
off threshold
B3 2
A =01.00
B =+00000
p=2
Gain
Offset
Decimals in the message text
B3
On =+04000
∆ =-02000
Ax =+05000
On threshold
Differential value for the on/
off threshold
Q = 1 (A
X
> On)
Courtesy of Steven Engineering, Inc. ● 230 Ryan Way, South San Francisco, CA 94080-6370 ● General Inquiries: (800) 670-4183 ● www.stevenengineering.com
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