Yokogawa ADMAG AXF - Manual (Page 52)

IM 01E20C01-01E 6-23
6. PARAMETER DESCRIPTION
Parameter setting sequence
(for automatic multiple ranges switching)
F10: SO1 Function
Select a function F11: SO2 Function
Select a function
F14: SO1/2 Active Mode
Select whether SO1 and SO2 output is to
be “Closed (On) Act” or “Open (Off) Act”
Function Selection
No Function: Output is stopped (*: other functions may be selected)
Fwd/Rev Ranges: Forward and reverse flow rate measurement
Auto 2 Ranges: Automatic 2-ranges switching
Auto 3 Ranges: Automatic 3-ranges switching
Auto 4 Ranges: Automatic 4-ranges switching
Refer to Table 6.4.1
and set F10 or F11.
Set the spans for the ranges to be used.
No. 1 range
Ϲ No. 2 range
Ϲ No. 3 range Ϲ No. 4 range
If “instantaneous flow rate % display (FR)” is selected for
Display Mode and A10: FLOW RATE(%) is selected for
BRAIN communication, the instantaneous flow rate %
and following symbols will be displayed only for multiple
ranges and forward/reverse flow measurement.
Forward No. 1 range : [F1] Reverse No. 1 range : [R1]
Forward No. 2 range : [F2] Reverse No. 2 range : [R2]
Forward No. 3 range : [F3]
Forward No. 4 range : [F4]
F30: Forward
Span 2
Forward No. 2 range
B23: Flow Span
Forward No. 1 range
F31: Forward
Span 3
Forward No. 3 range
F33: Reverse
Span 1
Reverse No. 1 range
F34: Reverse
Span 2
Reverse No. 2 range
F32: Forward
Span 4
Forward No. 4 range
F0607.EPS
10% of No. 1 range
(set using F40)
10% of No. 2 range
(set using F40)
10% of No. 3 range
(set using F40)
Input
100%
No. 1 range No. 2 range No. 3 range No. 4 range
Output
Reverse Forward
Minimum span % within multiple and
forward/reverse (set using F41)
F0608.EPS
Figure 6.4.1 Multiple Ranges and Hysteresis Widths
NOTE
For more details regarding the setting of hyster-
esis width, refer to the description of setting
parameter for F40: Auto Range Hys and F41:
Bi Direction Hys.
Multiple Ranges Setting 2:
Multiple ranges switching via external
status input
᭿ For both the forward and reverse directions, switch-
ing of up to four ranges can be carried out based on
status input; however, switching between directions
is not possible. Switching between forward and
reverse ranges is carried out automatically only
when the flow direction reverses.
᭿ SI1 and SI2 status input terminals are used for
multiple range switching. For more details, refer to
Table 6.4.2: Multiple Ranges Switching via External
Status Input.