Vacon 20 CP, Installation, Technical And Maintenance Manual

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Safety vacon • 6
Service support: find your nearest Vacon service center at www.vacon.com
1
1.5 Warnings
VACON
®
20 CP AC drive is meant for fixed installations only .
Only DVC A circuits (Decisive Voltage Class A, according to IEC 61800-5-1) are
allowed to be connected to the control unit.
This advice aims to protect both the
drive and the client-application. Vacon is not responsible for direct or consequen-
tial damages resulting from unsafe connections of external circuits to the drive.
See paragraph 1.7 for more details.
Do not perform any measurements when the AC drive is connected to the mains.
The touch current of VACON
®
20 CP drives exceeds 3.5mA AC. According to stan-
dard EN61800-5-1, a reinforced protective ground connection must be ensured.
See paragraph 1.6.
If the AC drive is used as a part of a machine, the machine manufacturer is
responsible for providing the machine with a supply disconnecting device (EN
60204-1). See paragraph 4.1
Only spare parts supplied by Vacon can be used.
At power-up, power brake or fault reset, the motor will start immediately if the
start signal is active, unless the pulse control for Start/Stop logic has been selected.
Furthermore, the I/O functionalities (including start inputs) may change if param-
eters, applications or software are changed. Disconnect, therefore, the motor if
an unexpected start can cause danger. This is valid only if STO inputs are ener-
gized. For prevention on unexpected restart, use appropriate safety relay con-
nected to the STO inputs.
The motor starts automatically after automatic fault reset if the autoreset func-
tion is activated. See the Application Manual for more detailed information.
This is valid only if STO inputs are energized. For prevention on unexpected
restart, use appropriate safety relay connected to the STO inputs.
Before performing any measurement on the motor or the motor cable , discon-
nect the motor cable from the AC drive.
Do not perform any voltage withstand test on any part of VACON
®
20 CP. The
tests shall be performed according to a specific procedure. Ignoring this proce-
dure may damage the product.
Do not touch the components on the circuit boards . Static voltage discharge may
damage the components.
Check that the EMC level of the AC drive corresponds to the requirements of your
supply network.
In a domestic environment, this product may cause radio interference, in which
case supplementary mitigation measures may be required.