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Electrical installation
Operation Manual ServoOne CM-L and ServoOne CM-A
ID no.: 1800.208B.1-00 Date: 03/2020
Electrical installation
4
Electrical installation
Note:
If the ServoOne CM-L charging module and the
ServoOne CM-A active supply unit are installed in the axis group, it is
imperative the operation manuals for the other devices (axis controllers
BG3+4, controller, capacitance module and expansion module) are also
followed.
4.1 Before you start
During the installation work
it is imperative you avoid ...
y
Screws, cable residue or other foreign bodies falling into the device
y
Moisture entering the device
It is imperative you pay attention to the following warnings and safety instructions before
and during installation.
DANGER!
Risk of injury due to electrical power!
Carelessness will result in serious injuries or death.
x
Never make or disconnect electrical connections while they are electrically live! Always
disconnect the power before working on the device. Even 10 min. after switching off the
mains supply, dangerously high voltages of ≥ 50 V may still be present (capacitor charge).
So check that electrical power is not present!
x
Only once the DC Link voltage has dropped to a residual voltage of less than 50 V (to be
measured at the DC link busbars) is it allowed to work on the device.
x
Any existing additional DC link connections as well as the connections for all components
in the mains input area are to be checked in relation to each other and in relation to earth
to ensure they are not carrying any electrical power. If necessary, all cable connections are
to be discharged using suitable means.
x
Pay attention to warning sign on the device (see front of device).
DANGER!
Risk of injury due to electrical power!
Carelessness will result in serious injuries or death.
x
Dangerous voltages may be present at the device, even if the device is not emitting any
visual or audible signals/indications (e.g. on terminal LINE FILTER, LINE IN and SYNC with
mains voltage switched on).
x
Pay attention to warning sign on the device (see front of device).
WARNING!
Risk of injury due to hot surfaces on the device (heat sink)!
Carelessness may result in serious burns or damage.
x
The device heats up very significantly during operation and can reach temperatures of up
to 100 °C. If touched there is a risk of burns to the skin. For this reason provide protection
against touching.
4.2 Effective EMC installation
Compliance with the EMC Directive
Commissioning (i.e. starting up intended usage) is only permitted while strictly complying
with the EMC Directive (2014/30/EU). The installer/operator of a machine and/or system
must provide proof of compliance with the protection targets stipulated in the standard.
The essential EMC measures are already implemented in the design of the devices in
the form of optimised housing shielding, printed circuit board layout, filter measures and
selection of suitable connectors with shield plate. In addition to the internal measures,
the following installation measures are to be noted:
Routing of cables
y
If possible, signal cables should only enter from one side into the switch cabi-
net.
y
It is recommended to twist lines of the same electric circuit.
y
Avoid unnecessary cable lengths and "loops of spare cable".
Shielding measures
y
Do not strip back the cable shields too far and use the shield lugs on the related
connectors for making the connection to the components
(see Figure 4.1). Connect the other end of the cable shield to the PE rail (main
earth) or the backing plate using a large area connection.
