Electrical Installation
3
3.2 Standard Connection Diagram
SIEPYEUOQ2A01A AC Drive Q2A Technical Manual 67
3.2 Standard Connection Diagram
Wire the drive as specified by Figure 3.1.
WARNING! Sudden Movement Hazard. Set the MFDI terminal parameters before you close the control circuit wiring. Incorrect
Run/Stop circuit sequence settings can cause death or serious injury from moving equipment.
WARNING! Sudden Movement Hazard. Correctly wire the start/stop and safety circuits before energizing the drive. Momentarily
closing a digital input terminal can start a drive that is programmed for 3-Wire control. Failure to obey can cause death or
serious injury from moving equipment.
WARNING! Sudden Movement Hazard.
When using a 3-Wire sequence:
• Set the drive for 3-Wire sequence.
• Set b1-17 = 1 [RUN@PowerUp Selection = Disregard RUN]
• Wire the drive for 3-Wire sequence.
If these three conditions are correct, the motor can rotate in reverse when energizing the drive:
• The drive is wired for 3-Wire sequence.
• The drive is set for a 2-Wire sequence (default).
• b1-17 = 2 [Accept RUN]
Failure to obey can cause death or serious injury from moving equipment.
NOTICE: Fire Hazard. Install sufficient branch circuit short circuit protection as specified by applicable codes and this manual.
The drive is suited for circuits that supply not more than 100,000 RMS symmetrical amperes, 240 Vac maximum (200 V Class),
480 Vac maximum (400 V Class). Failure to obey can cause death or serious injury.
NOTICE: When the input voltage is 440 V or higher or if the wiring distance is longer than 100 m (328 ft.) be sure to use a drive
duty motor or carefully monitor the motor insulation voltage. Failure to obey can cause damage to the motor insulation.
NOTICE: Do not connect the AC control circuit ground to the drive enclosure. Failure to obey can cause incorrect control circuit
operation.
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