YOKOGAWA Admag TI Series User Manual page 61

Frequency output/pulse output
„ „
Menu path
Display
F
OUNDATION
Fieldbus
Block Relative
Name Index
MTB 107
Totalizer
„ „
Menu path
Display
F
OUNDATION
Fieldbus
Block Relative
Name Index
STB 67
STB 76
An actual value which makes low cutting effective has ± 0.5% hysteresis from the set low-
cut value. The hysteresis width on the negative side (going into the low cut when flow rate is
decreasing) and the positive side (going out of low cut when flow rate is increasing) are as
follows:
(1) Negative side
= Low-cut setpoint - (Minimum span set with multi range x 0.5%)
(2) Positive side
= Low-cut setpoint + (Minimum span set with multi range x 0.5%)
Example: W hen setting to span of volumetric flow rate = 10.0 m3/h,
Low-cut value = 1.0 m3/h
(1) Negative side
= 1.0 [m /h] – (10.0 [m
3
= 0.95 [m
3
(2) Positive side
= 1.0 [m /h] + (10.0 [m
3
= 1.05 [m
3
Device setup ► Detailed setup ► Pulse/Status out ► PO1/SO1 ► (see below)
Device Configuration ► MTB ► Device Configuration ► Maintenance ► Pulse/Status Out
► (see below)
Display
Low cut
Device setup ► Detailed setup ► Totalizer ► (see below)
Device Configuration ► STB ► Device Configuration ► Configuration ► Totalizer► (see
below)
Display
Totalizer 1 ► Low cut Totalizer 1 ► Total 1 Lowcut
Totalizer 2 ► Low cut Totalizer 2 ► Total 2 Lowcut
/h] x 0.5 [%])
3
/h]
/h] x 0.5 [%])
3
/h]
Parameter
F Fieldbus
OUNDATION
Pulse 1 Low Cut
Parameter
F Fieldbus
OUNDATION
<5. Functions>
Description
Specifies the low-cut value of
the frequency output and pulse
output.
Description
Specifies the low-cut value of
totalizer 1.
Specifies the low-cut value of
totalizer 2.
IM 01E21A02-03EN
60