Emerson XM678D - Page 62

54 • XM678D I&O Manual 026-1219 Rev 3
ASr 1
Differential for
fan/offset for
anti-sweat heate
r
[-45°F to 45°F]
[-
25.5
°C to 25.5°C]
trA = AC: dewp
oint o
ffset.
trA = rEG: differential for
modulating
fan regulation.
PbA 10
Proportional band
for modul
ating
output
[1°F to 45°F]
[0.1°C to 25
.5°C]
Differential for anti-sweat heaters
AMi 0
Minimum output
for modul
ating
output
0 to AMA
Minimum value for analog output: 
(0 to AMA)
AMA 100
Maximum output
for modul
ating
output
AMi to 100
Maximum value for analog output:
(AMi to 10
0)
AMt 20
Time with fan at
maxim
um speed or
ON time for relay
on anti-sweat
regulation
[10 to 60s] or
[10 to 60
mi
n]
trA = AC: Anti-sweat heaters cycle
period
.
trA =
rEG: Tim
e
with fan at maximum
speed.
The fan works at maximum speed
du
ring thi
s time. If intended for fan,
time is based in seconds; for anti-sweat
regulation, the time is based in minutes.
ALARM
rAL tEr
Probe for room
temperature alarm
nP; P1; P2; P3; P4; P6;
tEr
Selects the probe used to signal the
alarm temperature.
ALC Ab
Room temperature
alarm
co
nfiguratio
n:
relative to setpoint
or absolute
rE; Ab
rE = H
igh and Low alarms related to
the setp
oint.
Ab = High and Low alarms
related to
the abso
lute temperature.
ALU 41
High room
temperature alarm
sett
ing
[0.0°C to 32.0°C] or
[ALL to 1
50.0°C]
ALC = rE: [32°F
to 90°F] or 
[0.0°C to 32 °C]
ALC = Ab: [ALL to 302
°F] or 
[ALL to 150°C]
When this temperature
is reached and
the ALd d
elay time is expired, the HA
alarm will be enabled.
ALL -25
Low room
temperature alarm
sett
ing
[0.0°C to 50.0°C] or
[-55.0°C to ALU]
ALC
= rE: [32°F
to 90°F] or 
[0.0°C to 32.0°C]
ALC = Ab: [-67
.0°F t
o ALU] or 
[-55.0°C to ALU]
After this temperature is reached and
the ALd d
elay time is expired, the LA
alarm will be enabled.
AHY 2
Differential for
room tem
perature
alarm
[1°F to 45°F]
[0.1°C to 25
.5°C]
Thres
hold recovery after a temperature
alarm.
ALd 60
Room temperature
alarm delay
0 to 255min
Time interval between the detection of
an alarm condition and th
e
corresponding alarm signaling.
Label Value Description Range Notes
Table 24-1 - Default Parameter Map