General Information About Alarms And Shutoff Limits; Ftsa11 Flow Switch Function - Danfoss VACON NX Commissioning And Maintenance Manual

COMMISSIONING
P2.10.12 is the parameter that sets the delay time between when the parameters are exceeded and
the activation of a warning/shutdown. The value can be varied from 1 to 5 seconds. The default
setting is 5 seconds. During commissioning and maintenance the value is to be set to 5 seconds.
P2.11.1.8 are parameters for the Fieldbus (Profibus) output. The customer and/or end-user can
choose any 8 of the NXP 0009 parameter s to be sent out to a higher control system for external
monitoring. The default values are as follows:
P2.11.1, Primary side temperature from FTSA11 (C)
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P2.11.2, HX pump motor speed (rpm)
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P2.11.3, HX pump motor current (A)
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P2.11.4, Primary side pump inlet pressure (bar)
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P2.11.5, Output frequency to HX pump motor (Hz)
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P2.11.6, Motor torque as % (+1000 equals +100%)
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P2.11.7, Motor shaft power in % (1000 equals 100%)
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P2.11.8, Fault (trip) history
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P3.5 is the FV11 actuator reference temperature. Default value is 25 C. This value is the liquid inlet
temperature value to the main drives. More information can be found in
set points.
Only an authorized person is allowed to make changes to the parameter
!
settings. If the drive or HXL unit is malfunctioning or if they break due to a
customer and/or end-user parameter setup error the warranty is not valid.
NOTE
5.3.4 Gener al infor mation about alar ms and shutoff limits
Apart from the standard NXP AC drive alarms, found in the VACON
application can generate alarms or shut-offs from one flow switch (FTSA11) with a built in analogue
temperature transmitter, a pressure sensor (PT11) and one leak sensor (LS11). All alarm and
shutoff limits have a default value. These default values should, if needed, be modified at the
commissioning phase.
! Refer to the VACON
authorized personnel are allowed to make modifications to the parameters.
NOTE
The parameters and their settings can be found in chapter
you change the default settings during commissioning, you should write down the new setting
including the date and your name to keep track of changes. Write down the new parameters to the
custom setting column of the flow control parameter table 5.3-1.

5.3.5 FTSA11 flow switch function

The flow switch is set to shut down the HX-unit if the flow does not meet the requirements, refer to
chapter 5.4.2, Adjusting the system flow and setting the switch point of the
should be modified, during commissioning, through the switch interface panel. The default setting
for the switch is 50% (050).
Adjusting the FTSA11 flow switch:
1. Turn the pump power switch (the black and white switch in Figure 4.2-7)
connect the power to the HX-unit. This will activate the FTSA11.
Local contacts: http:/ / dr ives.danfoss.com/ danfoss- dr ives/ local - contacts/
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5.3.2, Application parameter
VACON
chapter 5.3.6 Temperature
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FTSA11. The unit settings
3 1
-unit
list. When
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