CPUCPU
EEPROM
A /
D
PTC
CJC
0.
2 m
A
43
44
42
41
4
3
2
10
Ω
MU
X
+
-
+
-
+
-
4 *4#
HIEJ
4222
21
22
23
31
33
24
40
41
BLOCK DIAGRAM:
CONFIGURATION /
OPERATING THE FUNCTION KEYS
Documentation for routing diagram.
In general:
When configuring the 4222, you will be guided through all parameters and you
can choose the settings which fit the application. For each menu there is a
scrolling help text which is automatically shown in line 3 on the display.
Configuration is carried out by using the 3 function keys:
will increase the numerical value or choose the next parameter
will decrease the numerical value or choose the previous parameter
will save the chosen value and proceed to the next menu
When configuration is completed, the display will return to the default state 1.0.
Pressing and holding
will return to the previous menu or return to the default
state (1.0) without saving the changed values or parameters.
If no key is activated for 1 minute, the display will return to the default state (1.0)
without saving the changed values or parameters.
Further explanations:
Password protection:
Programming access can be blocked by assigning a
password. The password is saved in the converter in order to ensure a high
degree of protection against unauthorised modifications to the configuration.
Default password 2008 allows acces to all configuration menus.
41
40
Potentiometer
2-wire transmitter
Voltage
Current
R
TD and lin. R,
connection
wir
es
TC
Supply
Supply
21.6...253 V
AC or
19.2...300 VDC
Gnd.
TTL, 5 V
NPN
PNP
, 24 V
Gr
een
Y
ellow
Fr
equency
generator
