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Technical specifications for DSTA170 57120001-FC
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Manufacturer:ABB
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Product Category:DCS Systems
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Spare Part Number:57120001-FC
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Weight:0.1 kg
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Tariff Code:8537101190
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Connection function:Analog-output field wiring
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Paired output board:DSAO120
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Output channels:8
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Voltage connections:8
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Current connections:8
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Signal selection:By connection to voltage or current terminals
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Current-path configuration:Diode with solder-jumper bypass
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Normal current configuration:Bypass jumper fitted
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Parallel-current configuration:Relevant bypass jumper open
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Isolation boundary:DSAO120 arrangement is non-isolated
Information
Overview
Downloads
Applications / Compatibility
Product Precautions
- ABB DSTA170 57120001-FC terminates the analog-output wiring between the DSAO120 board and the controlled field equipment. The signal connections determine whether each channel uses voltage or current output.
Product type: Analog-output connection unit
Channel arrangement: Eight DSAO120 channels
Signal selection: Separate voltage and current connections
Channel arrangement: Eight DSAO120 channels
Signal selection: Separate voltage and current connections
DSTA170 is paired with the eight-channel DSAO120 analog-output board. The connection unit brings the channel signals to screw terminals for field wiring; it does not perform the digital-to-analog conversion. In the associated output set, DSAO120 provides bipolar voltage or current outputs with 12-bit resolution including the sign.
The unit provides eight voltage-output connections and eight current-output connections, allowing the required signal function to be chosen through the field connection for each channel. The DSAO120 arrangement is not galvanically isolated. The load and return wiring therefore need to follow the circuit design for that board rather than the isolated DSAO120A arrangement.
Each current output has a diode with a solder-jumper bypass. Normal operation uses the bypass in place; the documented parallel-current-output arrangement requires the relevant bypass to be opened. This configuration applies when two current outputs feed the same control object and must be assessed as a complete circuit before any jumper change.
The unit provides eight voltage-output connections and eight current-output connections, allowing the required signal function to be chosen through the field connection for each channel. The DSAO120 arrangement is not galvanically isolated. The load and return wiring therefore need to follow the circuit design for that board rather than the isolated DSAO120A arrangement.
Each current output has a diode with a solder-jumper bypass. Normal operation uses the bypass in place; the documented parallel-current-output arrangement requires the relevant bypass to be opened. This configuration applies when two current outputs feed the same control object and must be assessed as a complete circuit before any jumper change.
Controller platform reference: ABB Advant S100 I/O. Match the controller and configured I/O arrangement.
Technical downloads for DSTA170 57120001-FC: an original ABB reference excerpt and an Apter Power installation planning guide.
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ABB DSTA170 57120001-FC technical reference
Original ABB excerpt - PDF, 1 pages, 506.1 KB. DSTA170 57120001-FC is the connection unit for the DSAO120 analog-output arrangement. Output range and conversion resolution belong to the paired output board; cables and the board are separate items. -
ABB DSTA170 57120001-FC installation planning guide
Prepared by Apter Power - PDF, 5 pages, 96.4 KB. Identity, configuration, connection and controlled acceptance planning.
DSTA170 57120001-FC is the connection unit for the DSAO120 analog-output arrangement. Output range and conversion resolution belong to the paired output board; cables and the board are separate items. The planning guide is prepared by Apter Power; apply the complete manufacturer instructions and the stated applicability boundaries.
System and supply context: DSTA170 57120001-FC is the connection unit for the DSAO120 analog-output arrangement. Output range and conversion resolution belong to the paired output board; cables and the board are separate items. Accessories are included only when itemized in the quotation.
Platform applications: The following applications describe Advant S100 I/O functions. Match the complete DSTA170 57120001-FC identity to the installed system before selecting a replacement.
Platform applications: The following applications describe Advant S100 I/O functions. Match the complete DSTA170 57120001-FC identity to the installed system before selecting a replacement.
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Analog field termination
Connect eight DSAO120 output channels to the field equipment through the appropriate screw-terminal circuits. -
Voltage-output wiring
Select the voltage connection and matching return for channels configured to drive a voltage-controlled load. -
Current-output wiring
Use the current connection and return for the intended loop, respecting the non-isolated board arrangement. -
Parallel-current circuit service
Maintain the documented diode-bypass arrangement when two output channels serve the same control object.
Prepare DSTA170 57120001-FC against the installed configuration and applicable ABB instructions. Plan isolation and the resulting interruption of system operation before replacement.
Confirm the paired board
Match DSTA170 to the installed DSAO120 arrangement; do not substitute DSTA171 or assume DSAO120A behavior.
Identify every channel
Record voltage/current selection and return wiring before disconnecting the field conductors.
Respect the isolation boundary
Treat the DSAO120 circuits as non-isolated and assess grounding and common-potential connections.
Preserve solder jumpers
Record the current-path bypass state. Change it only under the applicable ABB circuit procedure.
Isolate the affected process
Secure controlled equipment and isolate applicable supplies before wiring or connection-unit replacement.
Verify the restored outputs
Perform a controlled channel check against the intended voltage or current signal and confirm the field response.
Alternative Names
DSTA170 57120001 FC
ABB DSTA170 57120001-FC
Technical notes
Installation relationship: The unit provides eight voltage-output connections and eight current-output connections, allowing the required signal function to be chosen through the field connection for each channel. The DSAO120 arrangement is not galvanically isolated. The load and return wiring therefore need to follow the circuit design for that board rather than the isolated DSAO120A arrangement.
Configuration: DSTA170 57120001-FC is the connection unit for the DSAO120 analog-output arrangement. Output range and conversion resolution belong to the paired output board; cables and the board are separate items.
Technical reference: ABB S100 I/O Hardware Reference Manual, 3BSE002413R501, March 2004; Advant Controller 450 Product Guide, 3BSE015953R201 Rev. B.
FAQ View All FAQ
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Which output board is paired with DSTA170 57120001-FC?DSTA170 provides the field connection interface for DSAO120. The output board, cable and connection unit have separate identities and should be matched as an installed set.
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How many analog channels does DSTA170 57120001-FC connect?It connects eight channels. Each channel has voltage and current connection choices; these do not represent sixteen independent converted outputs.
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How is voltage or current selected on DSTA170 57120001-FC?The selected field-wiring connection determines the signal function for each DSAO120 channel. Use the appropriate voltage or current connection and its return circuit.
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Does DSTA170 57120001-FC provide isolated analog outputs?The paired DSAO120 output arrangement has no galvanic isolation. The isolation characteristics of DSAO120A must not be applied to this arrangement.
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What is the purpose of the current-output diode on DSTA170 57120001-FC?Each current-output path includes a diode that can be bypassed with a solder jumper. The bypass configuration changes between normal operation and the documented parallel-current arrangement.
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What is the normal bypass setting for DSTA170 57120001-FC?The current-output bypass jumpers are fitted for normal operation. Preserve the channel configuration and verify the circuit before changing a solder jumper.
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What changes when DSTA170 57120001-FC is used with parallel current outputs?When two current outputs from the same or different boards feed one control object, the applicable bypass jumpers are opened in the documented arrangement. Do not parallel outputs without a complete circuit review.
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Does DSTA170 57120001-FC determine analog-output resolution?No. Conversion resolution belongs to DSAO120. The associated board provides 12-bit resolution including sign; DSTA170 is the field-wiring connection unit.
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