APC AXFA11G user manual 100 85% 75% High Alarm, 35% Low Alarm, 75% Time t 35%, 85% 25%

Output Example 3

The high alarm (H) is set to 80% or more of the flow rate span; the high-high alarm (HH), to 90% or more.

Settings are:

G10: Low Alarm = -110%

G11: High Alarm = 80%

G12: Low Low Alarm = -110%

G13: High High Alarm = 90%

[%]	High High Alarm
100
90
80
	High Alarm
	Instantaneous flow rate
50
0	Time (t)
SO1	H

			L Alarm set to
			-110% indicates
			that the alarm is
SO2	HH		disabled.
		LL Alarm set to -110% indicates
		that the alarm is disabled.

AL

HH

Select “H/L Alarm” forF10: SO1 Function

Select “HH/LL Alarm” forF11: SO2 Function

Select “Closed (On) Act” forF14: SO1/2 Active Mode

Select “Open (Off) Act” forG20: Alm Out Act Mode

Select “Yes” forG33: Alm-HH/LL

F0612.EPS

NOTE

•Although the same items can be selected using the SO1 output terminal (selected for F10) and the SO2 output terminal (selected for F11), output is identical for both.

•Setting values of -110% and 110% are used to disable corresponding functions; and accord- ingly, status output can be customized for specific purposes.

6. PARAMETER DESCRIPTION

[G14: H/L Alarm Hys] Setting of upper/lower alarm value hysteresis width

This parameter sets the hysteresis width for upper and lower alarm value, using a % value of the maximum span.

Output Example

The hysteresis width is set to 5%.

Settings are:

G10: Low Alarm = 30%

G11: High Alarm = 80%

G12: Low Low Alarm = 20%

G13: High High Alarm = 90%

G14: H/L Alarm Hys = 5%

[%]				High High Alarm
100
90		85%
80
		75%
				High Alarm
			Instantaneous flow rate
50
				35% Low Alarm
30				25%
20
				Low Low Alarm
0		75%		Time (t)
	H		L	35%
SO1
	HH	85%	LL	25%
SO2
AL	HH		LL
		85%		25%

Select “H/L Alarm” forF10: SO1 Function

Select “HH/LL Alarm” forF11: SO2 Function

Select “Closed (On) Act” forF14: SO1/2 Active Mode

Select “Open (Off) Act” forG20: Alm Out Act Mode

Select “Yes” forG33: Alm-HH/LL

F0613.EPS

[G20: Alm Out Act Mode] Setting of the active mode for the alarm output.

This parameter selects the active mode for the alarm output terminal.

Setting	Function
Closed (On) Act	When an alarm occurs, alarm output
	becomes "Closed (On)."
Open (Off) Act	When an alarm occurs, alarm output
	becomes "Open (Off)."

T0631.EPS

6-27 IM 01E20C01-01E