Emerson XM678D - Synchronized Defrost; Daily Defrost from RTC: [Edf = Rtc]

Synchronized Defrost Multimaster Function Menu (SEC) • 25
14.1.Synchronized Defrost
The synchronized defrost allows multiple defrosts to
be managed from different boards connected through
the LAN connection. In this way, the boards can
perform simultaneous defrosts with the possibility to
end them in a synchronized manner.
The LSn and LAn parameter are used only to show
the actual settings (read only). See Figure 14-2 for an
example of configuration:
14.1.1. Daily Defrost From RTC: [EdF =
rtC]
• IdF Parameter: For safety reason, force the value
of Idf at +1 with respect to the interval between the
two Ld 
parameters. The IdF timer is restarted after defrost
and at every power ON.
• DEFROST START: At the time selected by the
parameters Ld1 to Ld6 or Sd1 to Sd6.
• DEFROST END: If the probes reach the dtE
temperature or for maximum MdF time.
• SAFETY and RtC or RtF ALARM: With clock
alarm, the device will use the parameters IdF, dtE
and MdF.
• MULTIMASTER DEFROST: All the probes with
clock
CAUTION! In this case, the Adr parameter
cannot be duplicated because defrost cannot be
managed correctly.
BEGIN
Press for three (3) seconds,
the EEU or other will be
showed. The measurement
unit blinks.
Find Adr
Press the down arrow key
several times to find the
Adr parameter, then press
SET.
Modify
Adr
or
Set the value of Adr
parameter, then press SET
to confirm the parameter.
EXIT
Press both keys to exit
from menu or wait for
about 10 seconds.
Table 14-2 - Synchronized Defrost Keys
Figure 14-2 - Configuration Example
CAUTION! Do not set [EdF = rtC] and 
[CPb = n].
Par
Unit A
(RTC)
Unit B
(RTC)
Unit C
(RTC)
Adr nN + 1N + 2
IdF
9 hours
safety
9 hours safety 9 hours safety
MdF 45 min safety 45 min safety 45 min safety
dtE 12°C safety 12°C safety 12°C safety
Ld1 06:00 1° 06:00 1° 06:00 1°
Ld2 14:00 2° 14:00 2° 14:00 2°
Ld3 22:00 3° 22:00 3° 22:00 3°
Table 14-3 - Multimaster Defrost Example