DZB Series
Chapte r 1 S afety and Cau tions
Safety Definition
There a re two kinds of safety c autions in the manual:
Opera tions which are not performed acco rding to th e requireme nts may cause severe hurt
or eve n dea th.
Dan ger
Opera tions which are not performed acco rding to re quirements may c ause m oderate hurt
or light hur t or equipment damage .
Note
1.1
Safety Cautions
1.Before Installation
Do not us e the inverter that is damaged or ha s defe ct, or there will be danger of injury.
2.During Installation
Mount the inverte r on incombustib le surface like me tal, and kee p awa y from flammable substances !
Other wise it may cause fire.
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When m ore than two inverters are to be installed in one cabinet, please pay attention to the
installation locations to ensu re the cooling effect (refer to Chapter 3 Mechanical and Electrical
Installation).
Do not drop the lead wire stub or screw in the inverter, or the inverter may be damaged.
3.Wiring
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Only the qualif ied ele ctric al engineer can perform the w iring, other wise there w ill be danger of
e lectri c shoc k.
A ci rcuit breake r mus t be installe d betw een the ma ins and the inverter, otherwis e ther e will be
danger of fir e.
Wir ing ca n only be done after the mains input is cut off, otherwise there w ill be danger of electric
s hock.
Plea se connect the inverter to the ground acc ording to th e standard, otherw ise th ere w ill be dange r
of elec tric shock.
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Do not connect t he input ter minals with the output terminals (U, V, W), oth erwis e the inverte r
may be damaged!
Ensure the wiring mee t the EMC r equire ments and the local safety st andard. The wire size shall
be deter mined according to the manual, otherwis e acc ident may occur!
Brake resistor must not be c onnec ted be tween the D C bus terminals (+) and (-), otherwise fi re
may occur!
4. Before Power-on
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Plea se con firm the ma ins vo ltage level is consistent with that of the inverter and the input and
output wirings are corre ct, and chec k if there is any short circuit in periphera l circuit and if the
w iring is fixe d and fast, otherwise th e inve rter m ay be damaged!
Mount the cover plate prope rly be fore p ower-on the inverter, o therwise there will be danger of
e lectric shoc k.
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Dielectric strength tes t had been done a t factory. Therefore, us er needs not do this test again,
otherwise ac cident may occur!
All the pe ripher al par ts sha ll be c onnec ted correctly acc ording to the manual, or accident may
occur!
5.A fter Power-on
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Do not ope n the c over of the inver ter after power-on, othe rwise there will be dan ger of electric
shock!
Do not touc h the inver ter and its c ircuit with w et ha nd, otherwis e the re will be da nger o f elec tric
shock.
Do not touc h the invert er terminals , othe rwise there will be danger of electric shock.
At power-on, the inver ter will perform the security c heck of the external he avy-c urrent circu it
automat ically, so at this time please do not touch the te rmina ls U, V and W, or the te rmina ls of
motor, otherw ise there will be danger of ele ctric shock.
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Danger
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Chapter 1 Safety and Cautions
DZB Series
C hapter 1 Safe ty and Cautions
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