Setting the motor parameters
Procedure:
- 1. Open the "CoE - Online" tab.
- 2. Set all parameters described below.
Leave all parameters not described in the factory setting.
The values for the parameters can be found in the motor data sheet.
8020:01 "Peak current"
Unit: mA
The peak current, which may only flow for a short time.
8020:02 "Rated current"
Unit: mA
The rated current is the current that the motor draws when it is operated at the rated speed and rated torque.
8020:03 "Rated voltage"
Unit: 0.01 V
8020:04 "Phase to phase resistance"
Unit: 0.01 Ω
DC resistance, measured between two motor phases.
Note: from firmware 04, this value is determined automatically when scanning the motor. See next chapter Scan motor (only firmware 04 and higher).
8020:09 "Start velocity"
Unit: °/s (degrees per second)
There are two ways to calculate the value for this parameter:
- If the nominal velocity of the conveyor roller is known, use this formula:
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| nstart: Value for parameter 8020:09 "Start velocity" i: Transmission ratio. v: Nominal velocity in m/s d: Conveyor roller diameter in m |
- If the nominal speed of the roller motor is known, use this formula:
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| nstart: Value for parameter 8020:09 "Start velocity" nN: Nominal velocity of the motor in rpm i: Transmission ratio |
8020:13 "Mechanical to electrical ratio"
You can calculate or experimentally determine the value for this parameter.
- If the number of poles of the roller motor is known, use this formula:
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| p: Value for parameter 8020:13 "Mechanical to electrical ratio" i: Transmission ratio. |
- Example:
Number of poles = 8
Transmission ratio = 12:1
→ "Mechanical to electrical ratio" = (8 / 2) x 12 = 48 - If the number of poles of the roller motor is not known:
Determine the "Mechanical to electrical ratio" experimentally.
8020:14 "Rated velocity"
Unit: °/s
Rated speed of the roller motor.
8020:19 “Motor thermal time constant”
Unit: 1/10 s (1/10 of a second)