SM-Universal Encoder Plus User Guide
21
Issue Number: 6
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3.
Is absolute position required at every power up, for example for operation in servo
mode where a phasing test is not possible at every power-up
4.
What resolution is required (e.g. AB 1024 encoder = 10bit resolution, SC.HiPEr
1024 = 19 bit resolution)
5.
What environment is the encoder to be installed in
6.
What cable lengths are to be used (encoders with comms do have restricted cable
lengths due to comms baud rate)
7.
Encoder supply voltage should be selected dependant upon the cable lengths due
to voltage drop
8.
Are motor objects to be saved to the encoder
4.2.2
Drive operation dependant
1.
When operating in closed loop servo mode the drive requires the absolute position
at power-up, be this from an absolute encoder or through a phasing test at every
power-up
2.
When operating in closed loop vector either an absolute or non-absolute encoder
can be used
3.
Encoder power supply and loading when operating with long cable lengths
4.2.3
Encoder specification dependant
1.
Encoder voltage levels, are these compatible with the drive
2.
Incremental encoder signals are these compatible (SC, Ab, Fr, Fd)
3.
Incremental signals do not exceed maximum input frequency for option module
4.
Comms encoder protocol is compatible (HiPEr, EndAt, SSI)
5.
Comms encoder baud rate is compatible with drive
6.
Application cable lengths do not exceed incremental signals cable length
7.
Application cable lengths do not exceed the recommended cable length for comms
operation, this being baud rate specific.
8.
Encoder loading does not exceed encoder power supply from module (external
power supply should be used if this is the case).
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