FRONT PANEL DESCRIPTION
Name
Function
1 Process Value (PV) display
Displays the process value (PV).
2 Set value (SV) indication lamp
Stays on while a set value is on the display.
3 Set value (SV) and
Set value (SV) or parameter symbols and codes
parameter display
are displayed when setting various parameters.
4 DOWN key
Decrements the numerical value in the place
(common for each digit)
selected with the UP key. Where various para-
meters are displayed, each parameter is dis-
played one by one every time this key is
pressed. The sequence of displays however, is
opposite to the sequence of displays with the
SEL key.
5 Direct SV key
By pressing this key, the set value (SV) is dis-
played.
6 SELECT key
The key to be used when switching over to the
1st or 2nd block parameters, or when scrolling
through the parameters within a block.
7 Data display key
Displays the data assigned to the parameter
selected with the SEL key
24
C
C
PV
H
L
SEL
DATA
ENT
PV/SV
SV
Model : CN4421
13
12
8
6
18
4
7
9
10
11
2
14
10
17
16
Model : CN4520
C
C1 C2 H
L HB
PV
SV
DATA
SEL
ENT
SV
15
12
4
11
5
9
10
6
14
13
1
3
2
7
8
Model : CN4620,
CN4720
14
8
6
5
1
7
2
4
11
9
3
15
13
12
C
C1
PV
SV
C2
H
HB
L
SEL
DATA
ENT
SV
