Connecting And Testing The Encoder(S) - Danfoss MCO 305 Operating Instructions Manual

MCO 305 Operating Instructions
Par. 33-19, 33-20: Master Marker and Slave Marker Type
Master marker signal:
Slave marker signal:
Marker signal type must be selected for master and slave: Default setting is [0] Encoder Z positive flank for
both.

Connecting and Testing the Encoder(s)

NB!:
The controller and the motor must be able to be switched off at any time with an EMERGENCY
STOP button.
The motor must be able to turn completely freely so that a sudden jolt can not cause damage.
If you have not yet done so, now is the time to connect and test the encoder. If you are using an absolute
encoder, enter [0] in par. 32-00 and in par. 32-02 the used type of encoder. Then enter the resolution in
par. 32-03.
NB!:
Remember to turn off the power before connecting the encoder.
Each encoder channel (A, B, Z, and D) is monitored, open circuit as well as short circuit is detected. A green
LED shows the status of each active channel, LED on means that the channel is ok. Monitoring if the
channels are automatically enabled/disabled depending on the selected encoder type, e.g. A, B, and Z is
monitored when an incremental encoder is selected. Additionally an alarm will be trigged if encoder
monitoring is activated in parameters 32-09 and 32-39.
Check the encoder connections by means of the test program: Select the file "Enc-S.m" via the MCT 10.
APOSS and with that the file is opened automatically .
Execute the Encoder Test Program
In the Development menu click on
start the test program. Run the drive forward for
example in hand mode – [Hand on] key – then the
position must count positive. If the position is
counting negative you must swap A and B channels
from the encoder or two motor phases.
If you turn the motor by hand (the motor should
not be connected!), you can test whether the enco-
der functions: the position is continuously registe-
red in the communications window. For a full rota-
tion you should receive 4 times the value of the
resolution of the encoder, that means 2000 if the
Encoder Counts per Revolution is 500.
__ How to Install __
Input 5
Input 6
Execute to
MG.33.K2.02 – VLT is a registered Danfoss trademark
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