Siemens SIMADYN D 6DD1683-0CD5 SP23.5 Power Supply

Overview

SIEMENS SIMADYN D · SP23.5 POWER SUPPLY

SIMADYN D 6DD1683-0CD5 SP23.5 Power Supply

Official Siemens supply, monitoring and rack-integration details for the SP23.5 module.

At a Glance

Manufacturer	Siemens
Article Number	6DD1683-0CD5
Product Type	SP23.5 Rack Power Supply
Core Function	Generates and monitors the 5 V and ±15 V rails for a SIMADYN D SR12.4 rack.
Application / Compatible Series	SIMADYN D SR12.4 subracks with 115/230 V AC input and no fan.

Exact IdentificationMatch the complete 6DD1683-0CD5 article number and installed hardware.

Engineering FitSIMADYN D SR12.4 subracks with 115/230 V AC input and no fan.

Configuration CheckVerify the installed interfaces, accessories and project settings before replacement.

Product Overview

Siemens 6DD1683-0CD5 is the SIMADYN D SP23.5 power supply used in the SR12.4 subrack. The rack accepts 115 or 230 V AC through a selectable input and distributes the required system voltages through its backplane buses.

The front panel provides operating and fault LEDs, test sockets for the 5 V and ±15 V rails, battery access and reset control. Siemens classifies SIMADYN D as open equipment that must be installed in a secured enclosure or electrical operating room.

Ordering focus: Confirm the complete article number, installed hardware revision and system configuration before purchase or installation.

Key Functions

Rack Power Conversion

Supplies the SIMADYN D rack and its L-bus and C-bus backplanes.

Voltage Supervision

Monitors input and output undervoltage conditions and signals system faults.

Service Access

Provides test sockets, reset control and an external backup-battery connection.

Official Specifications

Power-Supply Designation	SP23.5
Associated Subrack	SR12.4 (6DD1682-0BC4)
Input Voltage Selection	115 V AC or 230 V AC
Subrack Fan	Not fitted in SR12.4
Monitored Output Rails	5 V, +15 V and -15 V
Supply Connector	X1, 3-pole screw/plug-in terminal
Monitoring Connector	X2 pins 1-4 for power-supply and fan monitoring
External Battery Input	X3 pins 1-2
External Reset Input	X4 pins 1-2
Printed-Circuit Fuse	F601, T4A H, 250 V
Input Undervoltage Threshold	Below approximately 170 to 175 V AC
Automatic Restart Level	Approximately 196 V AC
Input Overvoltage Threshold	Above approximately 265 V AC
Line Filter	Limit-value class A in accordance with VDE 0871

Official source: Siemens SIMADYN D Hardware manual, power-supply and voltage-monitoring sections. Commercial stock, condition and warranty are seller terms.

Frequently Asked Questions

Which rack is 6DD1683-0CD5 designed to power?

It is assigned to the SIMADYN D SR12.4 subrack.

What mains settings are available on 6DD1683-0CD5?

Select either 115 V AC or 230 V AC with the front voltage selector before energizing the rack.

Which output rails can be checked on 6DD1683-0CD5?

Front test sockets are provided for the 5 V, +15 V and -15 V rails.

How is an external backup battery connected to 6DD1683-0CD5?

Use pins 1 and 2 of connector X3.

How can 6DD1683-0CD5 initiate an external reset?

Jumper pins 1 and 2 of connector X4 or use the front reset button.

What happens if the AC input to 6DD1683-0CD5 falls too low?

The OK indication goes dark, the output voltages shut down and the CPU receives the DSAVE stop signal.

What installation enclosure is required for 6DD1683-0CD5?

Install the rack in a locked cabinet, enclosure or electrical operating room accessible only to authorized personnel.

Compatibility & Ordering Notes

Before ordering 6DD1683-0CD5: compare the complete article number, hardware version, connected accessories and engineering configuration.

SIMADYN D Power Supply Installation Checklist for 6DD1683-0CD5

• Verify the SR12.4 rack and SP23.5 designation.
• Set the 115/230 V selector before applying power.
• Connect protective earth at X1 pin 3 and inspect the T4A H fuse.

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