ATI Q46H/85 PAA System Part 6 – Configuration
44
O&M Manual
Rev F (8/17)
If Relay A Mode is set to Alarm Mode, AL, then the following settings will
appear in the Config Menu list automatically. In this mode, two setpoints
can be selected on the same relay, to create an alarm band. Phase HI
selection causes the relay to energize outside of the band, and Phase
LO causes the relay to energize inside of the band. This feature enables
one relay to be used as a control relay while the other is used as a HI-LO
Alarm relay at the same time. Setpoint A-LO must be set lower than
Setpoint A-HI. When AL mode is first selected, Setpoint A-LO is
defaulted to 0.
Figure 26 is a visual description of a typical alarm relay application.
Figure 26 - Alarm Relay Example
If Relay B Mode is set to CON (see Relay B Mode), then Relay B will
function identically to Relay A. Relay B settings appear in the CONFIG
menu list automatically.
If Relay C Mode is set to CON (see Relay C Mode), then Relay C will
function identically to Relay A. Relay C settings appear in the CONFIG
menu list automatically
If Relay D, E, or F Mode is set to CON (see Relay D, E, F Modes), then
the Relay will function identically to Relay A. Relay settings appear in
the CONFIG menu list automatically.
Setpoint A-HI: 1.000 ppm Setpoint A-LO: .500 ppm
Hyst A-HI: 0.050 Hyst A-LO: .0.050
Delay A-HI: 000 Delay A-LO: 000
When value rises to
1.000 ppm, relay
closes, until value falls back to < 0.950 ppm.
Settings:
When value falls to < 0.500 ppm, relay
closes, until rises back to > 0.550 ppm.
When value rises to
0.500 ppm, relay
closes, until value falls back to < 0.450 ppm.
When value falls to < 1.000 ppm, relay
closes, until rises back to > 1.050 ppm.
*Hyst A-HI
*Delay A-HI
*Setpnt A-LO
*Hyst A-LO
*Delay A-LO
*B Hysteresis
*B Delay
*B Phasing
}
}
1.000 ppm
0.950 ppm
0.550 ppm
0.500 ppm
PHASE: HI
HYST - HI
HYST - LO
X
X
OFF
ON
*D,E,F Hystere
*D,E,F Delay
*D,E,F Phasing
C Setpoint
*C Hysteresis
*C Delay
*C Phasing
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