21.12.98
Operating manual
04_GB
ACP 3000 — 0.37–15.0
17
Berges electronic
•
D–51709 Marienheide-Rodt
•
Tel. 02264/17-0
•
Fax 02264/17126
Control lines longer than 1 m must be laid with a shield and earthed at one side on the fre-
quency inverter. The screen is earthed via terminal “CM” in the case of pull-up logic and
pull-down logic (see “Connection Diagrams”, chapters 7.1 to 7.7). If cables have lengths in
excess of 10 m, use a 0–20 mA control signal because of the possibility of parasitics. The
inverter can be switched over to this mode of operation. See parameter
24-FSEL
(chapter
Other loads connected to the mains may produce voltage spikes that may interfere with
functioning of the inverter or may even damage it. Chokes or mains filters can be used on
the mains side to protect the inverter against voltage spikes (resulting from switching large
loads to the mains). Such chokes and filters are available as accessories.
If inverters are operated in switchgear devices or in their close proximity (e.g. in one com-
mon control cabinet) in connection with the same power mains, we recommend the follow-
ing precautionary measures to suppress interference in the switchgear:
•
Wire the coils of contactors, switchgear devices and relay combinations with “RC ele-
ments” or with free-wheel diodes.
•
Use shielded cables for external control and measuring cables.
•
Lay disturbing cables (e.g. power and contactor control circuits) separately and at a dis-
tance from the control cables.
3.4
EMC Ordinance (EMC Directive, 89/336 EEC)
The frequency inverters were tested in the form of a practical test set-up in a switchgear
cabinet (in accordance with our interference suppression measures in these operating in-
structions: “EMC (electromagnetic compatibility)”. The limit values of the standards below
were fulfilled under these conditions:
EMA (Electromagnetic Emission)
EN 50081-1
Basic specification “Emitted interference” (Limit value class A)
or
EN 50081-2
Basic specification “Emitted interference” (Limit value class B)
EN 55011
Emitted interference
EMB (Electromagnetic Interference)
EN 50082-2
Basic specification “Interference immunity”
EN 50140
Electromagnetic fields
EN 60801
Static discharge (ESD)
IEC 801-4
Burst on mains lead/data line
At least the following conditions must be fulfilled for compliance with
the limit values of the aforementioned standards:
•
Installation of a mains filter or a mains filter and a motor choke (mains filter and motor
choke are not included in the scope of delivery).
•
Laying the motor cable in a shielded configuration.
•
Laying the control cable in a shielded configuration.
•
Observe general RFI suppression measures (refer to the chapters 3.3.1 and 3.3.4).
As the aforementioned interference resistance tests are based on standardised mains con-
ditions, in extreme cases it may happen that the function of the inverter will be lost (mini-
mum operating quality). This malfunction can generally be remedied by a RESET of the
inverter. Refer to the chapter entitled “Resetting a Fault” and “Fault Codes” on page 63.
Detailed information and technical data relating to adapted mains filters and chokes can be
found in the chapters 3.3.2, “Mains Filters/Output Chokes” and 3.3.3, “Filter Specifications”.
HINT!
StockCheck.com
