6
which setting value is currently being shown on
the display.
Settings
The setting values are shown by the three
rightmost digits of the display. An LED indica-
tor below each setting knob shows, when lit,
I
0
>/I
n
Start current of stage I
0
> as a multiple of the rated current of the used relay energizing
input. The setting range, i.e. 0,2…2 % x I
n
, 1…10 % x I
n
or 5…50 % x I
n
,
to be
selected
with switch SG1/2 and SG1/3.
t>
Operate time of stage I
0
> , expressed in seconds, when the definite time operation
characteristic (SG1/3 = 0). The setting range, i.e. 0.05...1.00 s, 0.5...10.0 s or 5...100 s, to
be selected with switch SG1/1 and SG1/2.
I
0
>>/I
n
Start current of stage I
0
>> as a multiple of the rated current of the used relay energizing
input. The setting range, i.e. 1…8 % x I
n
, 5…40 % x I
n
or 25…200 % x I
n
,
to be
selected
with switch SG1/6 and SG1/7. Additionally, the setting infinite "
∞
" (displayed as - - -) can
be selected, rendering the stage I0>> inoperative.
t>>
The operate time of the I
0
>> stage, expressed in seconds. The setting range, 0.05…1.00 s
or 0.5…10.0 s, is determined by the position of switch SG1/8.
Further, the checksum of switchgroup SG1 is
indicated on the display when the indicator
under the switchgroup is lit. In this way a check
can be carried out to prove that the switches
have been set as required and work properly. An
example of calculating the checksum is given in
the description "General characteristics of C-
type relay modules".
Switch
Function
SG1/1
Selection of the setting range of the operate time t> of stage I
0
>
When SG1/1 = 0, the setting range of t> is 0.05…1.00 s
When SG1/1 = 1, the setting range of t> is 0.5…10.0 s.
SG1/2
Selection of the setting range of the low-set current stage I
0
>
SG1/3
SG1/2
SG1/3
Setting range I
0
>
0
0
1…10 % x I
n
1
0
0,2…2 % x I
n
0
1
5…50 % x I
n
1
1
1…10 % x I
n
SG1/4
Selection of the mode of operation of the operate signals TS1 and TS2.
When SG1/4 = 0, the operate signals return to the initial state (= the output relay
drops off), when the measuring signal causing the operation falls below the set start
level.
When SG1/4 = 1, the operate signals remain on (= the output relay operated),
although the measuring signal falls below the set start level. Resetting with command
V101 via the serial interface or by pressing the push-buttons STEP and RESET
simultaneously, which also erases the recorded information.
SG1/5
Not in use.
Additional functions required by individual
applications are selected by means of the pro-
gram selector switches of switchgroup SG1 lo-
cated on the front panel. The numbering of the
switches, 1…8, as well as the switch positions 0
and 1 are marked on the front panel.
Selector switches
