Endress+Hauser Proservo NMS81 Functional Safety Manual

Proservo NMS80/81/83
Endress+Hauser 13
Alarm and warning messages
Additional information is provided by the alarm and warning messages in the form of error codes
and associated clear text messages.
The following table shows the correlation between the error code and the current output:
Error code
1)
Current output (message type) Note
Fxxx ≥21.0 mA or ≤3.6 mA xxx = three-digit number
Mxxx corresponding to measuring mode xxx = three-digit number
Cxxx corresponding to measuring mode xxx = three-digit number
Sxxx corresponding to measuring mode xxx = three-digit number
1) The error codes are listed in the Operating Instructions.
Exceptions:
Error code
1)
Current output (message type) Note
C400 ≥21.0 mA or ≤3.6 mA Simulation failure mode
1) The error codes are listed in the Operating Instructions.
Parameter configuration for
safety-related applications
It is recommended to carried out factory reset before setting the parameters.
Navigate to: Setup → Advanced setup → Administration
Device reset = To factory defaults
This resets all parameters to defined values.
Calibration of the measuring point - safety function 1 (level measurement)
The calibration of the measuring point is described in the Operating Instructions (→  7).
Specify which type of configuration a) or b) should be used. Both configurations can apply in parallel
or in combination with safety function 2 (current input measurement).
a) Level value (source) (1) -> safety-related signal: analog output (2)
b) Level value (source) (1) -> safety-related signal: digital output (3)
Level value (source) (1)
Make sure that the application is configured correctly.
Navigate to: Setup
Setting
• Level source = Level
• Empty and Tank reference height must be set correctly.
• High stop level and Low stop level must be set correctly.
Navigate to: Setup → Gauge command
Setting
Gauge command = Level
Analog output (2)
Make sure that the correct output is configured (Analog I/O B1-3 or Analog I/O C1-3).
Navigate to: Setup → Advanced setup → Input/output → Analog I/O
Setting
• Operating mode = 4..20mA output or HART slave +4..20mA output
• Analog input source = Tank level
• 0 % value must be set correctly.
• 100 % value must be set correctly.
• Used for SIL/WHG = Enabled

Endress+Hauser Proservo NMS81 Specifications

General

Brand	Endress+Hauser
Model	Proservo NMS81
Category	Measuring Instruments
Language	English