Specifications

Comfort Reference Value – 5th Generation of STÖBER Inverters STÖBER
ANTRIEBSTECHNIK
11. Used Parameters
KSW-150
D.. Reference Value
Par. Description Fieldbus-
address
D85
Axis, OFF
r=1, w=2
Quickstop ramp: D85 determines the ramp when quick stop signal and limit switch signal are
queued (in connection with D35).
NOTE
This parameter is indicated in user units per second. The user units are specified in D87 and D88.
Value range in D249: 0 ... 30000 ... 131072000
Fieldbus: 1LSB=siehe D86; Type: I32; raw value:1LSB=Fnct.no.18; USS-Adr: 04 15 40 00 hex
2655h 0h
D86
Axis
r=2, w=3
Decimal digits: Parameters D86 to D89 specify the representation in user-defined units. The
number of positions to be indicated after the decimal point is parameterized in D86.
NOTE
Since a change in D86 causes the decimal point to shift (i.e., a change in the affected values), D86
should be parameterized at the beginning of commissioning.
Example: When D86 is reduced from 2 to 1,a value such as 12.27 mm/s changes to 122.7 mm/s.
Value range: 0 ... 0 ... 3
Fieldbus: 1LSB=1; Type: U8; USS-Adr: 04 15 80 00 hex
2656h 0h
D87
Axis, OFF
r=2, w=3
Numerator: Parameters D86 to D89 specify the representation in user-defined units. D87 and
D88 define the ratio of user units of the user to the speed of the motor in rpm. Since, in such cases,
this ratio (reciprocal value of the total ratio) is rarely a whole number, it can be entered as a fraction.
This prevents rounding errors. The numerator of this fraction is entered in D87 and the denominator
of this fraction is entered in D88.
Example:
A toothed belt drive has 41 measuring unit. Speeds are to be indicated in measuring units/minute.
The toothed disk has 23 teeth. The belt has 917 teeth. The toothed belt is driven with the K302
0170 ED402 geared motor at a precise transmission ratio of 559/33.
Solution:
The motor revolves exactly 41 x 23/917 x 33/559 rpm per "measuring unit."
The following are calculated from this:
D87 = 41 x 23 x 33 = 31119
D88 = 559 x 917 = 512603
"Measuring unit" is entered in D89.
NOTE
Since a change in D87 affects the values of other parameters, D87 should be parameterized at the
start of commissioning.
Value range in D89: 1 ... 1 ... 31 Bit
Fieldbus: 1LSB=siehe D86; Type: I32; (raw value:1LSB=1·<D89>); USS-Adr: 04 15 C0 00 hex
2657h 0h
D88
Axis, OFF
r=2, w=3
Denominator: Parameters D86 to D89 specify the representation in user-defined units. D87 and
D88 define the ratio of user units of the user to the speed of the motor in rpm. Since, in such cases,
this ratio (reciprocal value of the total ratio) is rarely a whole number, it can be entered as a fraction.
This prevents rounding errors. The numerator of this fraction is entered in D87 and the denominator
of this fraction is entered in D88.
Example:
A toothed belt drive has 41 measuring unit. Speeds are to be indicated in measuring units/minute.
The toothed disk has 23 teeth. The belt has 917 teeth. The toothed belt is driven with the K302
0170 ED402 geared motor at a precise transmission ratio of 559/33.
Solution:
The motor revolves exactly 41 x 23/917 x 33/559 rpm per "measuring unit."
The following are calculated from this:
D87 = 41 x 23 x 33 = 31119
D88 = 559 x 917 = 512603
"Measuring unit" is entered in D89.
NOTE
Since a change in D88 affects the values of other parameters, D88 should be parameterized at the
start of commissioning.
Value range: 1 ... 1 ... 31 Bit
Fieldbus: 1LSB=1; Type: I32; USS-Adr: 04 16 00 00 hex
2658h 0h