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Operating Instructions – Explosion-Proof AC Motors DR63/eDR63, DVE250/280
7
Parameter setting: Frequency inverters for category 3 motors
Startup
Maximum speed The maximum motor speed must be limited in the "System limits" window. Observe the
following when you set the parameter maximum speed:
• Maximum speed ≤ motor limit speed and
• Maximum speed ≤ maximum gear unit input speed n
emax
(see gear unit nameplate)
Automatic
adjustment
The parameter automatic adjustment is activated via guided startup. Thus, the fre-
quency inverter sets parameter IxR value with each enable signal. A manual change is
not permitted.
7.3.2 Startup procedure for MOVIDRIVE
®
B
Observe the following points during startup:
• Use the MOVITOOLS
®
MotionStudio software, version 5.70 or higher, for a guided
startup procedure.
• Startup and operation of the motors of category 3 is possible in parameter sets 1 and
2.
• The first startup must always be a complete startup.
• The motor configuration only allows for individual drives. You can set either "V/f" or
"vector-controlled" for the control mode.
• Select the proper motor series in the "Motor type" window.
• In the "SEW motor type 1" window, choose the device category, the nominal motor
voltage, the nominal motor frequency and the line voltage in addition to the motor.
• For the application options, you can only select "speed control" and the "hoist" func-
tion. Do not use the options "DC braking" or "Flying start function".
Current limit In guided startup, the Current limit parameter is set to 150 % I
NMot
in parameter
window 1. This value must be reduced according to the permitted maximum output
torque at the gear unit M
amax
.
Maximum speed The maximum motor speed must be limited in parameter window 2. Observe the follow-
ing when you set the parameter maximum speed:
• Maximum speed ≤ motor limit speed and
• Maximum speed ≤ maximum gear unit input speed n
emax
(see gear unit nameplate)
Automatic
adjustment
The parameter automatic adjustment is activated via guided startup. Thus, the fre-
quency inverter sets parameter IxR value with each enable signal. A manual change is
not permitted.
Always set the operating mode to "4-quadrant operation" (parameters P820/P821).
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