SMART 3W72S2, Installation Manual, Page: 24 / 36

Working step LED status Note
4. The wallbox will now start up in test-
ing mode.
-
DANGER!
During testing mode, dangerous currents are applied to the charging contacts of the wall-
box, which present a danger to life and limb: do not touch these contacts under any cir-
cumstances and proceed with the following actions using extreme caution. Otherwise,
there is a risk of severe injury through electric shock or even death!
Working step LED status Note
5. With the wallbox in testing mode, you
can now measure the voltage at each
phase of the charging connector. Mea-
suring the signal at the CP contact
(against PE), the frequency, as well as
the duty cycle are also possible.
ca. 10
minutes
The flashing LEDs indicate that
the wallbox is switched on and a
voltage is applied to the charg-
ing contacts. Therefore proceed
with extreme caution!
After approx. 10 minutes, the
voltage is switched off automat-
ically (all LEDs are illuminated).
6. To terminate testing mode, switch off
the power supply of the wallbox via
the upstream MCB(s) and RCCB. -
7. Remove the internal electronic com-
ponents cover. Set the S1 rotary en-
coder to the 0, 1 or F position.
Ensure that the S3 rotary encod-
er remains set to the 0 position.
8. Replace the internal electronic com-
ponents cover. Close and lock the
housing cover. Switch the power sup-
ply back on via the upstream MCB(s)
and RCCB.
During start-up, the wallbox will
load the new settings from the
memory and return to normal
operating mode.
Settings for the S1 and S3 rotary encoders.
The following settings can be selected using the S1 rotary encoder on the left:
Position Description Explanation
0 Normal operation Setting for normal charging operations
1 no function -
2 Testing mode
Measuring voltage (contactor closed) and communications
(CP) possible at the charging contacts in order to test func-
tionality without a vehicle
3 Setting device ID
Device ID input possible via S3 rotary encoder (see next
page)
4 Testing mode See position 2