Technical
Manual
Switch
Actuators
AMI/AMS
MDT technologies GmbH •
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Tel.: +49-2263-880 • Fax: +49-2263-4588 • [email protected] • www.mdt.de
44
4.7.2
Reverse
counter
The
following
illustration
shows
the
settings
for
the
reverse
counter
to
the
next
service:
Figure
34:
Reverse
counter
to
next
service
The
following
chart
shows
the
dynamic
range
of
this
parameter:
ETS
‐
text
Dynamic
range
[default
value]
comment
Type
of
operating
hours
counter
Reverse
counter
Chosen
operating
mode:
Reverse
counter
Count
if
Relay
ON
Current
>20mA
Current
>50mA
Current
>100mA
Current
>200mA
Current
>500mA
Current
>1A
Current
>2A
Current
>5A
Adjustment
of
the
counting
condition
Send
status
of
service
hours
every
…
[h]
0
‐
100
[0h]
Adjustment
when
a
message
shall
be
sent
Send
signal
of
service
at
…x10h
intervals
0
‐
250
[0h]
Adjustment
when
a
service
is
required
Table
39:
Reverse
counter
to
next
service
The
reverse
counter
to
the
next
service
can
count
the
operating
hours
in
which
the
channel
is
active.
These
can
be
counted
back
as
well
when
the
channel
is
switched
on
as
when
a
determined
current
value
is
exceeded.
The
value
when
a
service
is
required
can
be
adjusted
with
the
setting
“Send
signal
of
service
at”.
When
this
service
time
runs
out,
the
dependent
communication
object
“Service
required”
sends
a
service
requirement.
The
setting
0h
deactivates
this
function
and
so
also
the
one
described
below.
Via
the
setting
“Send
status
of
service
hours
every
…
h”
can
be
adjusted
in
which
steps
the
object
“Time
to
next
service”
sends
a
message
with
the
remaining
operating
hours
before
the
next
service.
The
setting
0h
deactivates
this
function.