Hitachi WJ200-004MF Manual page 4

Pursuit of Ease of Use
Easy sequence [EzSQ]
1
programming function
Sequence operation is realized by downloading to an inverter a
program created with Hitachi's EzSQ software. User program can
be compiled on EzSQ software on a PC. External components can
be simplified or eliminated, resulting in cost-savings.
● EzSQ Example:
Energy cost saving by speed reduction.
■Daytime: Motor speed is automatically reduced to reduce demand during peak hours.
■Nighttime: Motor speed is increased to take a advantage of off-peak power rates.
Example of driving program
Standard driving
(Frequency is constant.)
1st 2nd 3rd
Standard Inverter
Operation panel
(Switch/timer etc.)
Rely sequence
POWER
RUN Hz
PRG A
STOP
RUN
RESET
MIN MAX
Conventional
Inverter
Panel lead
Ease of Maintenance
Long life time components
1
(Design life time 10 years or more*)
Design lifetime 10 Years or more for DC bus
capacitors and cooling fan.
Cooling fan ON / OFF control function for longer
fan life.
*Ambient temperature : Average 40 º C (no corrosive gases, oil mist or dust)
Design lifetime is calculated, and not guaranteed.
2
Life time warning function
WJ200 diagnoses lifetime of DC bus capacitors
and cooling fan(s).
4
Night time
WJ200 driving
4th 5th 6th 7th date
WJ200 Using EzSQ
Operation panel
(Switch/timer etc.)
Inverter
Panel lead WJ200
3
The cooler fan can be exchanged
without special tools.
2
Safe stop function
WJ200 conforms to the applicable safety standards and corresponds
to Machinery Directive of Europe. Shuts down the inverter by
hardware, bypassing the CPU, to achieve reliable safe stop function.
The safety standard can be met at a low cost.
(ISO13849-1 Category 3 / IEC60204-1 Stop Category 0)
*1-phase 100V class and C versions (SFC, LFU, HFC) are not certified.
Safety Module
Safety SW
(Emergency Stop)
3
Password function
The WJ200 inverter has a password function to prevent changing
parameters or to hide some or all parameters.
Easy-removable
cooling fan
Top cover can
be removed
with fingertips.
Remove cooling
fan after
disconnecting
power plug.
Only one MC is enough
•Reduction in costs.
•Miniaturization
ST01 (GS1)
Emergency output
ST02 (GS2)
shut-down
EDM
via hardware
Safety terminal
(In / output)
Environmental Friendliness
Micro surge voltage suppress
1
function
Hitachi original PWM control method
limits motor terminal voltage to less than
twice inverter DC bus voltage.
Lower than Hitachi motor max. insulation
voltage (1,250V)
(During regeneration, the motor terminal voltage may exceed
the motor maximum insulation voltage (1,250V))
Motor terminal voltage
E=625V cable:100m