★
★
If parameter identification is required, please pay a ttent ion that the rotating motor ma y injure
peopl e, otherw ise accident may occur!
Do not change the factory settings , otherwis e the inverter may be damaged!
6. Running
★
★
★
Do not approach the equi pment when restart function i s enabled, othe rwi se there w ill be danger
of injury.
Do not touch t he fan and the discharging resi stor to check the temperature, otherwis e burning
may occur!
Non-professional person s hal l not meas ure the si gnal of a running inverter, ot herwise there will
be danger of i njury or damaging the i nvert er!
★
★
Do not let objects fall in a runni ng invert er, otherwise the inve rte r ma y be damage d!
Do not st art and stop the i nverter by on/off of t he contactor, otherwise the inverter may be
damaged!
7. Maintenance
★
★
★
P le as e do not repair or maintain the inverter with powe r on, otherwise t here will be dange r of
elect ric shock!
P le as e repair or maintain the invert er after confirming the charge LED turns off, otherwise t here
may be human injury caused by the residual voltage of the capac it or!
Only qualified electric al engineer can repair or mai nta in the i nvert er, otherwise t here will be
danger of human injury or damaging the equi pment.
1.2
Cautions
1. C heck the Insulation of t he Motor
When the motor is use d for the fi rst time, or reused after storing for a long time, or in regular checkup,
the user m ust check t he ins ulati on of the motor t o prevent the poor insulation of t he windings of mot or from
damaging the inverter. The motor connection must be divided from the i nverter during the insulat ion check.
It i s recommended to use a 500V Mega-Ohm-Meter to check and the insulation resi stance shall not be less
than 5M
.
2. Thermal Prote ction of Motor
If the rated ca pacity of the motor select ed is not matchi ng that of t he inverter, espec ially when the rated
power of the inverter is bigger than that of the motor, make sure t o adjust the parameters for mot or protecti on
insi de the inverter or to i nst all a the rmal rela y to the mot or to guarantee the prot ection to t he motor.
3. R unning at Frequency Above Rat ed Frequency
The output frequency of this inve rte r is 0~600Hz. Pl ease consider the capability of t he mechanical
devi ces when the customer needs the inverter to run at the frequency higher than 50Hz.
4. Motor Heat a nd Nois e
Si nce the out put voltage of the inve rter is in PWM wave with some harmoni cs , t he temperature may ris e,
the noi se and vibration may incre ase compared with the i nverter running at mai n frequency.
5. P res sure-sensiti ve Devi ce or Capacitor at the Out put Side of t he Inverter
Because the inverter outputs PWM wave, the capacitor used for improvi ng power factor and pre ssure-
sensit ive re sis tor used for lightening-proof shouldn' t be ins tall ed at the out put side of the invert er, otherwise
the invert er may ha ve tra nsi ent over-current and may be damaged.
6. S witches Us ed at t he Input and O utput termi nal of the Inverter
If the cont actor is required to be i nstalled be tween the i nvert er and t he power s upply, it is prohibited to
start or stop the inverter wi th the contactor. If the user has to use the contactor t o start a nd stop the inverter,
the interval between the start and st op shall be less than one hour. Frequent charging and dischargi ng ma y
reduc e the life of the ca paci tor. If t he switches like contactors are c onnect ed between the output terminal and
the motor, ma ke sure to s tart and stop the inverter w hen the inverte r has no output, otherwise the modules in
the invert er may be damaged.
7. Usage Outs ide t he Range of Rated Voltage
The DZB series inve rter shall not be used out of t he specified range of operation voltage , otherwi se the
int erna l component s of the inve rter ma y be damaged. If needed, please use corresponding voltage regul at ion
devi ce to change t he volt age.
8. 3-phase Input Modified Into 2-pha se Input
The modificati on of DZB series inverte r from 3-phase input to 2-phase input is not al lowed, or fault may
occur.
9. Lightni ng Strike Prot ection
There are lightning protecti on devices inside the inve rte r, But t he use r should instal l other lightning
protect ion device at the front end of the inverter if l ight ning stri ke occurs freque ntl y.
10. Altitude and Deration
When the altitude is higher t han 1000m, the cool ing effect of inverter is deteriorated because of t he
rarefac ti on of air, the derati on mus t be used a nd please cons ult our company for detailed technical support.
Ω
- 3 -
- 4 -
Note
Note
Danger
Danger
DZB Series
Chap ter 1 S afety and C autions
DZB Series
Chap ter 1 Safe ty and Ca utions
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