Emerson XM670, Инструкция по установке и эксплуатации

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XM679 - 24VAC Valves/Wiring Diagram Pressure Transducer Setup (XM679 Only) • 33
20 Pressure
Transducer Setup
(XM679 Only)
4 to 20 mA for PP07,
PP11, or similar models
Generic metric ratio
0 to 5V
Virtual Pressure : In this example of programming,
the master device is the regulator with the pressure
probe connected.
A working LAN connection is required (green LED
lit on all XM679K boards of the same LAN). Connect
and configure a pressure transducer only on one
XM679K of the network. Afterwards, the value of the
pressure read by the unique transducer connected will
be available to each device connected to the same
LAN.
tPP = LAn
LPP = n
P5C = nP
tPP = PP
LPP = Y
P5C = 420
(transd.)
Tpp = LAn
LPP = n
P5C = nP
Pb6
Superheat
Probe Pb6
Superheat
Probe
Pb6
Transducer
4 to 20mA
Pb6
Superheat
Probe
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19 20 21 22
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Press the arrow keys to access menu readings for
pressure.
Once set up, check these readings:
Slave device
pressure:
rPP : Shows the
value of pressure
received by
remote pressure
probe connected
to other XM600
device.
Master device
pressure:
dPP = Shows
the value of
pressure
measured by
pressure
transducer.

dP5 = Shows the
temperature
value measured
by probe 5.
Slave device
pressure:
rPP : Shows the
value of
pressure
received by
remote pressure
probe
connected to
other XM600
device.
Check for error messages. Error message examples:
• dPP = Err : in the Master device, the value of
pressure read from the transducer is outside the
acceptable range regarding parameters PA4- PA20 ;
is connected incorrectly or it is not configured to
parameter P5C .
• PPF = reading on the slave device - LAN
communication is not functional.
• tPP = LAn : in the master controller, LAN address
sequences are not correct. LPP = Y means the
address sequences are not correct.
Final Control From Superheat ( SH ) Reading Control
Values:
• dPP = Shows the value of pressure measured by
pressure transducer.
• dP6 = Shows the temperature measured by probe 6.
Corresponds to the outlet temperature of gas of the
evaporator.
• SH = Shows the actual superheat value. It must have
a consistent value for difference between the values
dP6 and dP5 . If displaying nA , err or nd , the value
is not calculable at the moment of the reading.
Slave Master Slave
Brown
In
+12v
gnd
In +5v