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bASIC SAfETy INSTRUCTIONS
1.4 Electrical connection
DANGER
Voltage at the terminals and in the device !
Danger to life due to electric shock !
► Never work on the open device or never touch exposed parts.
► Wait until all drives has been stopped in order that no regenerative
energy can be generated.
► For any work on the unit switch off the supply voltage and secure
it against switching on. Even after the mains supply has been
switched off, the drive controller continues to be supplied from an
energy storage device at the DC link for back-up operation. Since
the discharge of the energy storage device can sometimes take
several days, the absence of voltage must be checked by measur-
ing the input terminals L1/L2/L3 and BT+/BT-. Only then work may
be continued on the device.
► If personal protection is required, install suitable protective devices
for drive controllers.
► Never bridge upstream protective devices (not even for test purposes).
► Connect the protective earth conductor always to drive controller
and motor.
► Install all required covers and protective devices for operation.
► The control cabinet shall be kept closed during operation.
► Residual current: This product can cause a DC current in the pro-
tective earth conductor. When a residual current device (RCD) or a
residual current monitor (RCM) is used for the protection of direct or
indirect contact, only a RCD or RCM of Type B is permitted for this
product on the power supply side.
► The drive controllers are intended for a stationary connection.
Protective earth conductors are to be laid out in accordance with the
local regulations for equipment with high leakage currents according
to
EN
61800-5-1,
EN 60204-1
or
DIN IEC
60364-5-54.
17
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