Modbus Parameter Specifications
Table Of Contents
- Change history
- 1 Protocol frame
- 2 Holding registers
- 2.1 Overview
- 2.2 Reset
- 2.3 Set value
- 2.4 Password
- 2.5 Factory setting Control
- 2.6 Customer setting Control
- 2.7 Operating hours counter
- 2.8 Operating minutes counter
- 2.9 Addressing on/off
- 2.10 Stored set value
- 2.11 Enable RS485
- 2.12 Fan address
- 2.13 Set value source
- 2.14 Preferred running direction
- 2.15 Store set value
- 2.16 Mode of operation
- 2.17 Direction of action
- 2.18 Control parameters
- 2.19 Maximum modulation level
- 2.20 Minimum modulation level
- 2.21 Motor stop enable
- 2.22 Starting modulation level
- 2.23 Maximum permissible modulation level
- 2.24 Minimum permissible modulation level
- 2.25 Maximum speed
- 2.26 Maximum permissible speed
- 2.27 Ramp-up/ramp-down curve
- 2.28 Speed limit
- 2.29 Input characteristic curve
- 2.30 Maximum power
- 2.31 Maximum permissible power
- 2.32 Speed monitoring speed limit
- 2.33 Sensor actual value source
- 2.34 Interface settings
- 2.35 Rotating direction fail-safe mode
- 2.36 Fail-safe set value source
- 2.37 Set value for fail safe function
- 2.38 Time lag fail-safe speed
- 2.39 Cable break detection voltage
- 2.40 Sensor
- 2.41 Enable source
- 2.42 Stored enable RS485
- 2.43 Customer data
- 2.44 Error history
- 2.45 DC-link voltage reference value
- 2.46 DC-link current reference value
- 2.47 Manufacturing data
- 2.48 Air flow reference value
- 2.49 Mass flow reference value
- 2.50 Mirror function for holding registers
- 2.51 Mirror function for input registers
- 2.52 Mass flow calculation
- 3 Input registers
- 3.1 Overview
- 3.2 Identification
- 3.3 Maximum number of bytes
- 3.4 Bus controller software name
- 3.5 Bus controller software version
- 3.6 Commutation controller software name
- 3.7 Commutation controller software version
- 3.8 Actual speed
- 3.9 Motor status
- 3.10 Warning
- 3.11 DC-link voltage
- 3.12 DC-link current
- 3.13 Motor temperature
- 3.14 Temperature inside electronics
- 3.15 Current modulation level
- 3.16 Current set value
- 3.17 Sensor actual values
- 3.18 Enable input state
- 3.19 Current controller function
- 3.20 Current power
- 3.21 Current set value source
- 3.22 Energy consumption counter
- 3.23 Heartbeat
- 3.24 Mirrored input registers
MODBUS ACE V1.00
_______________________________________________________________________________________
ebm-papst Mulfingen GmbH & Co. KG
Bachmühle 2 ·74673 Mulfingen ·Phone: +49 (0) 7938/81-0 ·Fax: +49 (0) 7938/81-110 ·www.ebmpapst.com ·info1@de.ebmpapst.com
DocNo.: 634505DocNo: 446144DocNo.:358982DocNo.:322523DocNo.:309753DocNo.:303997DocNo.:276241DocNo.:256078DocNo.:196392 ·Template: 2 dated 10/6/2003 ·File: ext001931381.docx ·Last printed 9/30/2019 10:29:00
AM ·Page 54 of 78
Form 1003
2.39 Cable break detection voltage
Address : D15F
Write authorization : ebm-papst, customer
Only for Set value source (holding register D101) through analog input Ain1 (0)
If the voltage at the set value input Ain1 drops below the value defined here, the fan automatically switches to
the selected fail-safe set value source (holding register D15C). At the same time the direction of rotation is set
to the value "Rotating direction fail-safe mode" (see 2.35).
Coding:
Example:
Fail-safe mode function = on
Set value fail-safe speed = 100%
Input characteristic curve U_open circuit = 0.5 V
Input characteristic curve P1 = (0 V | 0%)
Input characteristic curve P2 = (10 V | 100%)
Motor stop enable = 1
This yields the following characteristic curve:
0.5 V
1 V
0%
0 V
P1
P2
10 V
100%
U [V]
Set value