Brand: Schneider
Model number: 490NAC0201
Colour:new
Warranty: 12 months
Lead Time:3-day working day
Country of origin: USA Price: Please contact us
Product weight:0.40kg
Shipping Port: China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
490NAC0201 SCHNEIDER
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Products Name: 490NAC0201 SCHNEIDER
PRODUCT DESCRIPTION
When setting the relay characteristic/torque angle for the three phase directional overcurrent element, a positive angle setting was specified. This was due to the fact that we consider as polarising voltage, the phase voltage value in quadrature of the current under fault conditions. With directional earth fault protection, the residual current under fault conditions lies at an angle lagging the polarising residual earth fault voltage.
Description:
Use the reference mode to monitor and if local control is enabled (Reference channel 1 Fr1 page 45 set to AIU1) adjust the actual
reference value by rotating the jog dial.
When local control is enabled, the jog dial on the HMI acts as a potentiometer to change the reference value up and down within the limits
preset by other parameters (LSP or HSP). There is no need to press the ENT key to confirm the change of the reference.
If local command mode is disabled, using Command channel 1 Cd1 page 63, only reference values and units are displayed. The value
will be "read only" and cannot be modified by the jog dial (the reference is no longer given by the jog dial but from an AI or other source).
The actual reference displayed depends on the choice made in Reference channel 1 Fr1 page 62.
Organization tree
(1) It is not necessary to press the ENT key to confirm the modification of the reference.
(1) Depending on the active reference channel
Possible values:
LFr
AIU1
FrH
rPI
rPC
(2) 2s or ESC
Displayed parameter value and unit of the
diagram is given as examples Value - Unit
Code Name/Description Adjustment
range
Factory
settings
LFr
q
(1)
M External reference value –400 to +400 Hz -
Frequency reference visible if reference channel active is remote display.
Reference channel 1 Fr1 page 62 set to LCC
or Forced local reference FLOC page 63 set to LCC.
This parameter allows to modify the frequency reference with the jog dial.
Visibility depends on the drive settings.
AIU1
q
(1)
M Analog input virtual 0 to 100 % of HSP -
This parameter allows to modify the frequency reference with an analog input.
Reference channel 1 Fr1 page 62 set to AIU1
or Forced local reference FLOC page 63 set to AIU1
or PID manual reference PIM page 74 set to AIU1.
Visibility depends on the drive settings.
FrH M Speed reference 0 Hz to HSP -
AI1
LCC
Mdb
AIUI
Actual frequency reference. This parameter is in read-only mode. Visibility depends on the drive settings.
v Terminal
v Remote display
v Modbus
v Integrated display with Jog dial
rPI
q
(1)
M Internal PID reference 0 to 100% -
This parameter allows to modify the PID internal reference with the jog dial.
Visibility depends on the drive settings.
rPC M PID reference value 0 to 100% -
This parameter is the PID reference expressed as a %.
q Parameter that can be modified during operation or when stopped
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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