11/17
Operating Instructions AEC
71
8.4
DC link connection, frequency inverter with AEC
WARNING
Dangerous voltage!
When the device is disconnected from power supply, the mains and DC terminals may
still be live for some time. Work on the device may only be started once the DC link
capacitors have discharged. The time to wait is at least 3 minutes in the case of sizes 1
through 7 and at least 8 minutes in the case of size 8.
The electrical installation must be carried out by qualified electricians according to
the general and regional safety and installation directives.
The documentation and device specification must be complied with during
installation.
Before any assembly or connection work, disconnect the device from power supply.
Check for absence of voltage.
Do not connect inappropriate voltage sources. The nominal voltage of the device
must correspond to the supply voltage.
The devices must be connected to ground potential.
Do not remove any covers of the device while power supply is on.
CAUTION
Device damage
Unsuitable frequency inverters will be damaged or destroyed if used in combination with
a mains unit.
For the “Sinusoidal feedback” function, IT-ACU/ANG devices must be used in any
case.
For mains and motor connection of an ACU or ANG frequency inverter, comply with the
Operating Instructions of this device.
For wiring of the DC link with ACU and ANG devices, see Chapters 8.3.3 and 8.3.4.
Summary of Contents for AEC 401 Series
Page 1: ...Device Series Active Energy Control AEC 401 Operating Instructions ...
Page 2: ......
Page 88: ......
Page 89: ......