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Function
2.2.2 Manual self test
When the T/R-button is operated (3...6 s), the device simulates an alarm status. All LEDs are illu-
minated, and the outputs are activated. The alarm messages are output via the corresponding in-
terfaces. When the storing of a fault in the memory is enabled, the alarm LEDs and the outputs re-
main active until the fault memory is cleared by means of a reset.
i
Users need to carry out the manual self test periodically (at least.every 6 months).
2.2.3 Malfunction
In the event of an internal malfunction, the green status LED changes its colour to red or yellow.
The error code can be queried via the device interfaces.
2.2.4 Delay times t
The times t
, t, t
and t
b
on
Modbus RTU.
Recovery time t
b
The recovery time is the time the device needs to be ready for measurement after connecting the
supply voltage U
.
s
Start-up delay t
After the supply voltage U
time t (0...999 s) plus the recovery time t
Response delay t
on
If values exceed or fall below the defined residual-operating-current limits, the residual current
monitor requires the response time t
added to the device-specific operating time t
Response time t
= t
an
If the fault does not persist during the response delay, the alarm is not signalled.
Delay on release t
off
If the alarm no longer exists and the fault memory has been disabled, the alarm LEDs go out and
the device switches back to its initial status. By means of the delay on release (0...999 s), the alarm
state is maintained for the selected period.
12
RCMS410_D00424_00_M_XXEN / 09.2022
, t, t
, and t
b
on
off
described below delay the output of alarms via LEDs, digital outputs, and
off
has been connected, the measuring function is delayed by the set
S
to output the alarm. A set response delay t
an
+ t
ae
on
.
b
and delays signalling:
ae
(0...10 s) is
on
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