Siemens 6RA70 Series User Manual

SIEMENS Energy & Automation 10-29
SIMOREG DC Master Base Drive Panel Operating Instructions
PNU Description Value range
[Unit]
Steps
No. indices
Factory
setting
Type
See
Change
(Access /
Status)
P143
FDS
(G145)
Setting the maximum speed for pulse encoder operation
The speed set in this parameter corresponds to an actual speed (K0040) of
100%.
1.0 to 6500.0
[rev/min]
0.1rev/min
Ind: 4
FS=500.0
Type: O4
P052 = 3
P051 = 40
Online
Control parameters for speed sensing with pulse encoder P144 to P147:
P144 and P147
determine the basic setting for actual speed sensing by means of pulse encoder (single or multiple evaluation of pulse
encoder signals and nominal measuring time) and thus also define the lowest possible measurable speed (minimum speed).
P145 and P146
can be used in special cases to extend the measurable speed range down to even lower speeds, on the basis of the
minimum speed defined by the settings in P144 and P147.
P144
*
FDS
(G145)
Multiple evaluation of encoder signals
0 1x
evaluation of pulse encoder signals
1 2x
evaluation of pulse encoder signals (for encoder types 1, 1a, 2)
2 4x
evaluation of pulse encoder signals (for encoder types 1, 1a)
Note
:
In contrast to the 1x evaluation method, 2x or 4x evaluation reduces the
minimum measurable speed by a factor of 2 or 4 respectively, but may
produce an "unsteady" actual speed value on encoders with unequal
pulse/pause ratio or without an exact 90° displacement between encoder
signals.
0 to 2
1
Ind: 4
FS=2
Type: O2
P052 = 3
P051 = 40
Offline
P145
*
FDS
(G145)
Automatic measuring range switchover for measurement of low
speeds - switchover of multiple evaluation
0 Automatic switchover of multiple evaluation
of pulse encoder
signals OFF (i.e. P144 is always active)
1 Automatic switchover of multiple evaluation
of pulse encoder
signals ON (i.e. when P144 = 0, 2x evaluation is selected for low
speeds and 4x evaluation for very low speeds. When P144 = 1,
4x evaluation is selected for low speeds)
As opposed to P145 = 0, this setting reduces the minimum
measurable speed by up to a factor of 4.
Caution
:
Switching over the multiple evaluation method for encoder pulses also
affects the position sensing function
in the measuring channel. For this
reason, this setting may not be used in conjunction with positioning
operations. Connectors K0042 to K0044 are inoperative when P145 = 1.
0 to 1
1
Ind: 4
FS=0
Type: O2
P052 = 3
P051 = 40
Offline
P146
*
FDS
(G145)
Automatic measuring range switchover for measurement of low
speeds - switchover of measuring time
0 Automatic switchover of measuring time OFF
(i.e. P147 is always active)
1 Automatic switchover of measuring time ON
This setting extends the measuring time for low speeds (based
on the measuring time set in P147, i.e. when P147 = 0, the
nominal measuring time is switched over to 2 ms for low speeds
and to 4 ms for very low speeds. When P147 = 1, the nominal
measuring time is switched over to 4 ms for low speeds)
Caution
:
When P146=1, the minimum measurable speed can be reduced by up to a
factor of 4 as opposed to a 0 setting. However, this setting results in a
longer actual speed sensing delay
in the extended minimum speed range.
0 to 1
1
Ind: 4
FS=0
Type: O2
P052 = 3
P051 = 40
Offline

Siemens 6RA70 Series Specifications

General

Brand	Siemens
Model	6RA70 Series
Category	DC Drives
Language	English