Environmental Friendliness - Hitachi SJ700 Series Manual

Global standards
Conformity to global standards
CE, UL, c-UL, C-Tick approvals.
Logic input & output Terminal
apply sink & source logic
Wide Input power voltage range
Input voltage 240V for 200V class and 480V for 400V class
as standard.

Environmental Friendliness

Micro Surge Voltage suppress
function (Patent registered in
Japan,USA & Korea)
Hitachi original PWM control suppressing Motor terminal
Voltage less than 2 times of INV DC voltage E.
Lower than Hitachi motor Max. insulation voltage (1,250V)
(during regenerating operation increase the DC bus voltage may over
motor max. insulation voltage)
Motor terminal voltage
1,250V
E=650V, cable=100m
EU RoHS compliant
EU RoHS compliant by restricting to use hazardous
substances.
(except solder in power module)
Improvement of environment
Varnish coating of internal PC board & plating of main circuit
copper bus bar as standard.
Versatile Functions
Instantaneous Power Failure Disregard
Function
The SJ700 ignores instantaneous power failure when power
fluctuation happens frequently as long as DC bus voltage
keeps higher than under-voltage level.
Emergency stop
Shut down INV output by electric circuit without CPU realize
high quality emergency stop.
Intelligent input terminal and output
terminal delay time function
Simplification of an external circuit is possible.
Active frequency matching function
Restart by motor frequency search restart function without
motor remaining voltage.
Controlled deceleration and stop on
power loss
Analog Input Disconnection Detecting
Function
The SJ700 outputs disconnection signal when frequency
command through analog input is lost.
Acceleration/Deceleration curve
functions
The pattern (5 kinds) which can be chosen according to a
usage is carried.
Analog Command Holding Function
(AHD)
Output frequency can be changed with UP/DOWN Function
with analog signal as reference value. The frequency at
power shutdown can be saved, too.
Pulse train input function
Pulse train input for Frequency reference or PID feed back
signal with SJ-FB(speed feed back card:option).
Integrated Input Electric Power
monitor
Input electric power(kW) and Integrated input electric power
for monitoring energy saving.
Automatic Carrier Frequency Adjustment
Function
The SJ700 detects motor current and automatically reduces
carrier frequency according to the current.
The resolution of a monitor (voltage,
current) output is improved to 10 bits.
EC97J1095
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