MODBUS LITE V5.01 parameter specification

MODBUS parameters "ebm-papst series 84 / 112 / 150 / 200"
_______________________________________________________________________________________
ebm-papst Mulfingen GmbH & Co. KG
Bachmühle 2 ·74673 Mulfingen, Germany ·Phone: [phone] ·Fax: [phone] ·www.ebmpapst.com ·[e-mail]
DocNo.: 634505DocNo.: 446144DocNo.:358982DocNo.:322523DocNo.:309753DocNo.:303997DocNo.:276241DocNo.:256078DocNo.:196392 ·Template: 2 dated 6 October 2003 ·File: ext001157859.doc ·Last printed 10/03/2015 15:13:00
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Form 1003
2.24 Maximum permissible speed
Address : D11A
Write authorisation : ebm-papst
This parameter defines the upper limit for the maximum speed (see 2.23 Maximum speed).
Encoding:
bytes Data speedperm. Max. ]rpm[
The maximum permissible speed is made up of 2 bytes.
2.25 Ramp-up curve / ramp-down curve
Address of ramp-up curve : D11F
Address of ramp-down curve : D120
Write authorisation : ebm-papst, customer, end customer
These parameters define the ramp time for a set value change of 256 steps
(i.e. the time for a change of the MSB set value by one step).
The parameter "Ramp-up curve" defines the time for a positive change of the set value.
The parameter "Ramp-down curve" defines the time for a negative change of the set value.
With closed-loop speed control, 256 steps correspond to a change in speed of
n [rpm] = nMax [rpm] / 250
With open-loop PWM control, 256 steps correspond to a PWM change of
PWM [%] = 0.39%
Encoding:
msbytes Datams steps256by change value setfor Time 10][ 
The MSB is of no relevance!
The result of a change from the minimum value 0 to the maximum value 64,000 is a ramp-up time or ramp-
down time of
sbytes Datams steps256by change value setfor Timestime Ramp 5,2][250][ 
If the value is 0, the new set value is immediately effective without any time lag.