Chapter 4 Wiring of Inverter
Shanghai Sigriner STEP Electric Co., Ltd.
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Chapter 3 Installation of the inverter
3.1 Installation steps
Step 1: Inverter delivery
Check and confirm that the catalog number printed on the label is the same as the one on
the purchase order
Remove the packaging of the intelligent flexible driver and check for any damage from
transportation
Step 2: Check line voltage
Check and confirm that the line voltage is compatible with the voltage and frequency
range of the inverter
Step 3: Install the inverter
Install the inverter according to the instructions in this document
Install any of the internal and external options
Step 4: Inverter wiring
Connect the motor and make sure the voltage is the same
Connect the control line
Set connection speed
Connect the communication cable
Connect the power cable after ensuring the power is off
3.2 Mechanical installation
3.2.1 Installation environment of the product
3.2.1.1 Temperature and humidity
The heavy-duty rated working temperature is between -10 ℃ and +50 ℃, the derating can reach up
to 60 ℃; the light-load rated working temperature is between -10 ℃ - +40 ℃, derating can reach up
to 50 ℃.
Relative humidity of air ≤95%, no condensation.
For the occasion of harsh installation environment on site, it is recommended to strengthen the
inverter heat dissipation.
3.2.1.2 Altitude
When the inverter is installed at an altitude below 1,000 m, it can run at its rated power; when over
1,000 meters, 1% of rated current decreases per 100 meters, allowing a maximum of 2,000 meters.
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