Homing Procedure - Siemens Simovert Masterdrives Compendium

<1> The homing position direction of approach in MD5 must correspond
to the parameterization of position sensing (e.g.. P183 if the motor
encoder is used in slot C [330.2]), i.e.:
MD5 = 1 ==> increasing positions from A to B ==> P183 = xx1x
MD5 = 2 ==> decreasing positions from A to B ==> P183 = xx2x
<2> If the technology option F01 in MASTERDRIVES MC is used, the
"Homing position setting value" in position sensing (e.g. P176 [330]) is
not required
<3> The BERO must be adjusted mechanically or via P188 [330.2] such
that the falling edge of the BERO signal does not fall together with
the encoder zero position (e.g. as can be observed at KK090 [550])
Positioning input signals
Control bits
[J_FWD]
[J_BWD]
[809]
Operating Mode
2 = Operating mode

Homing procedure

[809]
Position signals
Homing position
sensed
[815]
BERO signal (with
Digital inputs for
MD45 [813.4] and
positioning
P178 [330.5]
[813]
determined)
Override
[809]
1 ... 19 999 999 [x 1000 LU/min]
1 2
Technology option
Homing procedure operating mode
<4> Special case MD5=3: Directly set homing position without approach:
[MODE_IN] = 2
MD5 = 3
[J_FWD]
[J_BWD]
<5> Acceleration/deceleration times MD41/42 refer to a traversing
action from 0 to MD23 or from MD23 to 0.
<6> Homing with automatic reversal
at reversing cam right and/or left, see [813.4]
Homing Procedure operating mode
forwards
backwards
Direction of
approach
<4>
MD5
<1>
A
<6>
Reversing cam
Approach speed
MD7 (5000)
1 ... 19 999 999 [x 1000 LU/min]
v*
MD6 (500)
<5> MD41 (1000)
Reducing speed
1...99 999 ms
Accel Time
J_FWD or J_BWD
Rough pulse
Rotor zero position
3
Set position setpoint and
&
actual value to MD3
(Beforehand, traverse
1
through any displacement
path MD4 with speed MD6)
-999 999 999 ... 999 999 999 LU
Home position
Home positon
coordinate
displacement
MD3 (0)
MD4 (0)
Set actual value to
MD3 here
B
<6>
Reversing cam
BERO
range
Speed control Position control
MD4 = 0
Speed
s
MD18 / 19 (1000)
MD42 (1000)
2
1 ... 99 999 [x 1000 LU/s
1...99 999 ms
acceleration / deceleration
Decel Time
position-controlled
<3>
4 5
V2.5
Special case: Bero and rotor zero position (as shown)
Special case: Homing with bero only: MD8 = 1
Special case: Homing with rotor zero position only or
zero pulse only: MD8 = 2
[ST_EN] Start enable
[FUR] Processing runs
[DRS] Destination reached
and stationary
[FWD] Forwards
[BWD] Backwards
[FUT] Function finished
[ARFD] Axis is homed
- Homing procedure enable
v*
]
a*
6 7
Function diagram
fp_mc_821_e.vsd
MASTERDRIVES MC
08.01.02
Sampling time for positioning
U953.32 = ___(20)
Recommended: U953.32 = 4
Positioning output
signals
Status bits
[811]
Control signals
for position
sensing
[815]
Setpoints
[817]
Diagnostic data
[818]
8
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