Nord Drivesystems SK 180E Series, User Manual

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NORDAC BASE (SK 180E / SK 190E) – Users Manual for Frequency Inverters
132 BU 0180 en-4118
P480 … P481 Using flags
With the aid of the two flags it is possible to define simple, logical sequences of functions.
To do this, the "triggers" for a function (e.g. a motor PTC overtemperature warning) are defined in
parameter (P481) in arrays [-07] - "Flag 1" or [-08] - "Flag 2"
As well as this, the function which the frequency inverter is to execute when the "trigger" is active
- i.e. the response by the frequency inverter is defined in parameter (P480) in arrays [-09] or [-10].
Example:
In an application, if the temperature of the motor reaches the overtemperature range
("Overtemperature motor PTC") the frequency inverter is to immediately reduce the speed to a
specific speed (e.g. by means of an active fixed frequency). This is to be implemented by
"Deactivation of analog input 1" via which in this example, the actual setpoint is normally set.
This is used to reduce the load on the motor, so that the temperature can stabilise or the drive
unit reduces speed to a defined value before a shut-down due to error is made.
Step Description Function
1
Determine the trigger
Set Flag 1 to the "Motor overtemperature" function P481 [-07]

Function "12"
2
Specify the reaction,
Set Flag 1 to the function "Setpoint 1 On/Off P480 [-09]

Function "19"
It should be noted that depending on the function which is selected in (P481) the function may
need to be inverted by modification of the standardisation (P482).
P482
[-01]
...
[-10]
Standard BusIO Out Bits
(Standardisation of Bus I/O Out Bits)
S
-400 … 400 %
{ all 100 }
Adjustment of the limit values of the bus Out bits. For a negative value, the output function will be
output negative.
Once the limit value is reached and positive values are delivered, the output produces a High
signal, for negative setting values a Low signal.
[-01] = Bus / AS-i Dig Out1
(Bus IO Out Bit 0 + AS-i 1)
[-02] = Bus / AS-i Dig Out2
(Bus IO Out Bit 1 + AS-i 2)
[-03] = Bus / AS-i Dig Out3
(Bus IO Out Bit 2 + AS-i 3)
[-04] = Bus / AS-i Dig Out4
(Bus IO Out Bit 3 + AS-i 4)
[-05] = Bus / IOE Dig Out1
(Bus IO Out Bit 4 + DO 1 of the
first
SK xU4
-
IOE (DigOut 02))
[-06] = Bus / IOE Dig Out2
(Bus IO Out Bit 5 + DO 2 of the
first
SK xU4
-
IOE (DigOut 03))
[-07] = Bus / 2nd IOE Dig Out1
(Flag1 + DO 1 of the
second
SK xU4
-
IOE (DigOut 04))
[-08] = Bus / 2nd IOE Dig Out2
(Flag2 + DO 2 of the
second
SK xU4
-
IOE (DigOut 05))
[-09] = Bit 10 BUS status word
[-10] =
Bit 13 BUS status word