ABB module DSTD150 I/O connection terminal unit

Description

• DSTD150 Select “Block Interval” to calculate a linear average of the current over the programmed

  demand TIME INTERVAL, starting daily at 00:00:00 (that is, 12 am). The 1440 minutes per

  day is divided into the number of blocks as set by the programmed time interval. Each new

  value of demand becomes available at the end of each time interval.

  Select “Rolling Demand” to calculate a linear average DSTD150  of the current over the programmed

  demand TIME INTERVAL (in the same way as Block Interval above). The value is updated

  every minute and indicates the demand over the time interval just preceding the time of

  update.

•  
  • 

  THERMAL 90% RESPONSE TIME: This message is displayed only when the CURRENT

  DEMAND METER TYPE is set for “Thermal”. Enter the time required for a steady-state

  current to indicate 90% of actual value.

  TIME INTERVAL: This message is displayed only when the CURRENT DEMAND METER

  TYPE is set for “Block Interval” or “Rolling Demand”.DSTD150 Enter the time period over which

  the current demand calculation is performed.

  Note

  The TIME INTERVAL is only displayed when “Block Interval” or “Rolling Demand” is selected

  for the CURRENT DEMAND METER TYPE.

• There are seven DSTD150 analog outputs on the 745 relay which are selected to provide a full-scale

  output range of one of 0 to 1 mA, 0 to 5 mA, 4 to 20 mA, 0 to 20 mA or 0 to 10 mA. Each

  channel can be programmed to monitor any measured parameter. This sub-section is only

  displayed with the option installed.

  ANALOG OUTPUT 1(7) FUNCTION: DSTD150 This message enables or disables the analog

  output 1(7) feature. When disabled, 0 mA will appear at the corresponding terminal.

  ANALOG OUTPUT 1(7) VALUE: Select the measured parameter below to be

  represented by the mA DC current level of analog output 1(7).

• The are two types of digital inputs: Logic inputs have physical terminals for connecting to

  external contacts; Virtual inputs provide the same function as logic inputs, but have no

  physical external connections. A setpoint defines the state of each in virtual input in terms

  of “On” or “Off”.

  There are sixteen each of logic and virtual inputs. The state (‘asserted’ or ‘not asserted’) of

  each logic or virtual input can be used to activate a variety of predefined logic functions,

  such as protection element blocking, energization detection, etc. In addition, any logic or

  virtual input can be used as an input in FlexLogic™ equations to implement custom

  schemes.

• INPUT 1(16) FUNCTION: Select “Enabled” if this logic input is to be used. Selecting

  “Disabled” prevents this logic input from achieving the asserted (or signaling) state.

  INPUT 1(16) TARGET: Selecting “None” inhibits target message display when the input

  is asserted. Thus, an input with target type “None” never disables the LED self-test

  feature since it cannot generate a displayable target message.

  INPUT 1(16) NAME: Press ENTER to edit the login input name. The text may be

  changed from “Logic Input 1” one character at a time with the VALUE keys. Press

  ENTER to store and advance to the next character position.

  INPUT 1(16) ASSERTED STATE: Select “Closed” as when connected to a normally open

  contact (where the signaling state is closed). Select “Open” when connected to a

  normally closed contact (where the signaling state is open)

•  

Details: If you need urgent delivery orders, please feel free to contact us, and we will try our best to meet your needs.
Price problem: If you find that other suppliers offer cheaper prices for the same product, we are also willing to provide you with reference prices and give you further discounts.
Contact us:+86 180 6092 3929
Mail: 2235954483@qq.com
Contact: Chen