Keba ServoOne Series User Manual

Operation Manual ServoOne Supply Unit
40
ID no.: 1101.21B.6-00 Date:04/2020
4.5 Connection of the protective earth
conductor
The leakage current is > 3.5 mA. This situation results in the following minimum
requirements for the protective earth conductor cross-section as a function of the phase
conductor cross-section, as per EN61800-5-1.
Cross-section of the phase conductors
[mm
2
]
Minimum cross-section of the corresponding
protective earth conductor [mm
2
]
Q ≤ 16 Q however at least 10 mm
2
(Cu)
16 < Q ≤ 35 16
Q > 35 Q/2
Table 4.3 Protective earth conductor cross-section
4.5.1 Protective earth conductor (X11)supply unit BG5
1.
Earth each supply unit and each DC axis controller!
Connect the PE connection X11/PE on the supply unit to the PE rail (main earth) in
the switch cabinet.
Select the protective earth conductor cross-section according to Table 4.3.
For this purpose use a dedicated protective earth conductor (screw M5).
2.
Connect in series the PE connection X11/PE on the supply unit to the PE connec-
tions X11/PE on the butt-mounted DC axis controllers.
For this purpose use the pre-assembled protective earth conductors.
3.
Please take into account the local and national regulations and conditions. The
minimum cross-section of the protective earth conductor must comply with the
local safety requirements for protective earth conductors for equipment with high
leakage current.
4.4 Mains On/Off control process
Precharging the DC link
Switch S1 "Mains supply On" is switched on. The precharging contactor K2 closes and
the DC link is precharged via precharging resistors on terminal X45. The main contactor
K1 remains open initially.
Precharging completed
At a dened DC link voltage the contact on the internal relay on terminal X44/3,4 is
closed. The auxiliary contactor K3 closes and switches on the main contactor K1. The
precharging contactor K2 is opened via an auxiliary contact (normally closed contact) on
K1.
The ServoOne changes to ready to operate.
Switching off
Via switch S1 "Mains supply Off" the regenerative unit is completely disconnected from
the mains.
CAUTION!
X45/P1,P2,P3 are not allowed to be connected to X45/S1,S2,S3 using
jumpers! The synchronisation connections X45/S1,S2,S3 must be permanently
connected to the supply system.
Electrical installation

Keba ServoOne Series Specifications

General

Brand	Keba
Model	ServoOne Series
Category	Power Supply
Language	English