Emerson XM670 Installation And Operation Manual page 22

Controllers for multiplexed cabinets
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Differential for temperature alarm (defrost probe): (1°F to 45°F / 0.1°C to 25.5°C) Intervention differential
dAH
for recovery of temperature alarm.
Temperature alarm delay (defrost probe): (0 to 255 min) time interval between the detection of an alarm
ddA
condition and the corresponding alarm signaling.
High temperature alarm (defrost probe): (ALC= rE, 0 to 90°F or 50°C / ALC= Ab, ALL to 302°F or 150°C)
FLU
when this temperature is reached and after the FAd delay time the HAF alarm is enabled.
Low temperature alarm (defrost probe): (ALC = rE, 0 to 90°F or 50°C / ALC = Ab, - 67°F or - 55°C to ALU)
FLL
when this temperature is reached and after the FAd delay time, the LAF alarm is enabled.
Differential for temperature alarm (defrost probe): (1°F to 45°F / 0.1°C to 25.5°C) Intervention differential
FAH
for recovery of temperature alarm.
Temperature alarm delay (defrost probe): (0 to 255 min) time interval between the detection of an alarm
FAd
condition and the corresponding alarm signaling.
Delay of temperature alarm at start-up: (0min to 23h 50min) The time interval between the detection of the
dAO
temperature alarm condition after the device power on and the alarm signaling.
Alarm delay at the end of defrost: (0 to 255 min) Time interval between the detection of the temperature alarm
EdA
condition at the end of defrost and the alarm signaling.
dot
Temperature alarm exclusion after door open
Stop regulation interval (Only XM679): (0.0 to 24.0 hours: tens of minutes) After regulating continuously for
Sti
Sti time, the valve closes for Std time to prevent ice from forming.
Stop duration (Only XM679): (0 to 60 min.) Defines the stop regulation time after Sti. During this stop
Std
display shows StP message.
Sixth relay configuration (CPr-dEF-Fan-ALr-LiG-AUS-db-OnF): CPr= relay works as a compressor or
solenoid valve relay; dEF= relay works as defrost relay; Fan= relay works as a Fan relay; ALr= activation
OA6
with alarm conditions; LiG= light activation; AUS= auxiliary relay, it can be switched ON/OFF also by key;
db= deadband regulation (not compatible with CrE = y); OnF= ON/OFF functioning.
Modulating output configuration (if CoM=0A7): (CPr - dEF - FAn - ALr - LiG - AUS - db) it selects the
functioning of the modulating output in case of CoM=OA7: CPr= compressor; dEF= defrost; FAn= Fan; 
OA7
Alr= Alarm; LiG= Light; AUS= auxiliary; db= neutral zone (not available with CrE=Y)
Type of functioning modulating output:
For models with PWM / O.C. output -> PM5= PWM 50Hz; PM6= PWM 60Hz; OA7= two state, it can be
CoM
used as an open collector output
For models with 4 to 20mA / 0 to 10V output -> Cur= 4 to 20mA current output; tEn= 0 to 10V voltage output
AOP
Alarm relay polarity: cL= normally closed; oP= normally opened
Auxiliary output is unrelated to ON/OFF device status: n= if the device is switched off also the auxiliary
iAU
output is switched off; Y= the auxiliary output state is unrelated to the ON/OFF device status.
Digital input 1 polarity: (cL - oP) CL: the digital input is activated by closing the contact; OP: the digital input
i1P
is activated by opening the contact.
Table 8-1 - XM670 to XM679 Parameters List
16 • XM679K I&O Manual
OPTIONAL OUTPUT (AnOUT) If Present
DIGITAL INPUTS
026-1218 Rev 4

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