maxon motor EC 20, Operating Instructions Manual

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maxon motor
16
maxon EC motor
EC 20 flat with integrated electronics Operating Instructions
September 2010 Edition / document number 903155_PDF_E - 07 / subject to change
9 Trouble shooting
9.1 2-wire version
– Is the supply voltage set between 10.0 and 28.0 VDC?
– Is the supply voltage connected to the red and black wire and switched
on?
– Is the voltage at the red motor wire positive compared to voltage at the
black wire?
– Is the power supply source in the current limitation?
– Is the motor blocked mechanically?
9.2 5-wire version
– Is the supply voltage set between 10.0 and 28.0 V?
– Is the supply voltage connected to the red and black wire and switched
on?
– Is the voltage at the red motor wire positive compared to voltage at the
black wire?
– Is the set value speed voltage set between 0.33 and 10.0 V?
– Is the set value speed voltage connected and set at the white and black
wire?
– Is the voltage at the white motor wire positive compared to voltage at the
black wire?
– «Enable» through power supply (only for version «Enable»)
– Is the enable voltage set between 2.4 and 28.0 VDC?
– Is the enable voltage connected to the grey and black wire and
switched on?
– Is the voltage at the grey motor wire positive compared to voltage at
the black wire?
– «Enable» through potential-free contact (only for version «Enable»)
– Is the grey enable connected directly to the red supply voltage wire?
– Is the grey enable wire connected through a switch with the red
supply voltage wire?
– Is the switch or loop closed?
– is the power supply source in the current limitation?
– Is the motor blocked mechanically?
– The green wire does not have to be connected!
9.3 5-wire version, 2-wire operating mode
– Is the white and green wire directly connected together?
– Was there a direct connection between the white and green wire before
the supply voltage has been connected?
– Are there any more connections to the green or white wire?
– Is the supply voltage set between 10.0 and 28.0 VDC?
– Is the supply voltage connected and switched on?
– Is the voltage at the red motor wire positive compared to the voltage at
the black wire?
– In «enable» version, the grey cable does not require to be connected.
– In «cw/ccw» direction pre-selection version, the grey cable can be used
to define the direction (see 3.2).
– Is the power supply source in the current limitation?
– Is the motor blocked mechanically?