4-20 Ma Output - SKF Multilog On-Line System IMx-M User Manual

Table 4-7: RS485 Modbus termination DIP switch settings for L1, L2.
OFF
ON
OFF
ON
The location of RS485 Modbus termination DIP switch is found in
Protection Module

4-20 mA Output

Each CMM + PRM slot offers 16 4–20 mA Outputs. This connection is used for sending
protection measurement values from the CMM + PRM slot to the distributed control
system (DCS
channel measurement or related combined measurement.
Each 4–20 mA Output is updated every 640 ms.
The values are related to the scale setup in 4-20 mA Outputs configuration via IMx-M
Manager. 4 mA will correspond to the minimum scale value and 20 mA to the
maximum scale value with a linear scaling between those values.
Examples are shown below.

Scale configured to 0 to 10 will give

Scale configured to -10 to 30 will give
Selection of the output voltage is done via a jumper (JMP2). The jumper (JMP2) is
located on the condition monitoring module as shown in the
Condition Monitoring Module
drawing. The configuration of jumper is shown below.
SKF Multilog On-Line System IMx-M
User Manual
RS485 Modbus Termination DIP Switch Settings
L1
drawing.
) . Each 4–20 mA output can be configured to reflect the value of analog
4 mA = 0
20 mA = 10
4 mA = -10
8 mA = 0
20 mA = 30
 A cable fault will result in less than 3 mA output.
DIP Switch and Jumper on Condition Monitoring Module
L2 DIP Switch Setting
OFF
OFF
ON
ON
Hardware
Hardware Configuration
1234
0000
1000
0100
1100
DIP Switches on
DIP Switch and Jumper on
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