Front Panel; Keys And Functions; Xev22D Leds - Emerson XEV22D Installation And Operation Manual

8

Front Panel

Figure 8-1 - XEV22D Front Panel

8.1. Keys and Functions

Table 8-1 shows the keys found on the front panel
of the XEV22D and their corresponding functions:
Key
To display and to modify the set point. In
programming mode, it selects a parame-
ter or confirms a value.
By pressing and releasing this key, it is
possible to see the values of the probes.
In programming mode, it slides the codes
of the parameters or increases their val-
ues.
In programming mode, it slides the codes
of parameters or decreases their values.
Key Combinations
Table 8-1- XEV22D Front Panel Keys and Functions
Keys and Functions
Function
Key
To lock and unlock the keyboard.
To enter programming mode.
Table 8-1- XEV22D Front Panel Keys and Functions

8.2. XEV22D LEDS

Each LED function is described in Table 8-2:
LED Mode
ON
ON
OFF
BLINKING
ON
BLINKING
OFF
ON
Table 8-2 - XEV22D LEDs
Function
Function
Low pressure alarm
Maximum operating pres-
sure alarm
Valve is completely closed
Valve is moving
Valve is completely opened
Serial communication
present
Serial communication
absent
Superheat alarm
Front Panel • 9