TM5SPS1 Modicon TM5 I/O Power Distribution Module 24V DC 10A

The TM5SPS1 is a Modicon TM5 power distribution module designed specifically to supply a 24 V DC I/O power segment.

It introduces an external 24 V DC supply into the field-power path of a TM5 I/O station and can distribute up to 10 A to compatible downstream I/O modules and field loads.

The defining characteristic of the TM5SPS1 is that it supplies only the 24 V DC I/O power segment. It does not generate additional current for the internal TM5 power bus.

This makes it suitable for stations where the internal electronics power remains sufficient but the field-side I/O supply must be renewed, separated or divided into a new protected load group.

When installed with a left-isolated bus base, the module starts a new I/O power segment that is electrically separated from the 24 V DC segment located to its left.

The TM5SPS1 electronic module requires a compatible bus base and 12-pin terminal block. It is not a complete standalone 24 V DC power supply and does not convert AC mains power into DC voltage.

Key Features

• Dedicated 24 V DC I/O power distribution
• Maximum 10 A I/O segment capacity
• Does not generate TM5 power-bus current
• Creates a left-isolated field-power segment
• Supports separate protection of load groups
• Suitable for renewing downstream I/O power
• Requires a compatible TM5 bus base
• Requires a 12-pin terminal block
• No standard digital or analog I/O channels

Typical Applications

• High-current output groups
• Solenoid and relay load segments
• Distributed machine I/O
• Packaging equipment
• Material handling systems

Dedicated I/O Power Distribution

The TM5SPS1 supplies the field-side 24 V DC I/O power segment.

This segment may provide power to downstream equipment such as:

• Digital output modules
• Digital input sensor circuits
• Relay interfaces
• Solenoid valve circuits
• Indicator devices
• Other approved 24 V DC field loads

The module does not act as the main external cabinet power supply. It distributes power supplied by a separate regulated 24 V DC source.

10 A I/O Segment Capacity

The maximum current supplied to the downstream I/O power segment is 10 A.

This value represents the maximum segment capacity rather than the module’s own consumption.

The actual current available depends on:

• External power-supply rating
• Downstream field loads
• I/O module consumption
• Conductor size
• Terminal ratings
• External fuse or circuit protection
• Ambient temperature
• Voltage drop across the wiring

The total current of all downstream loads must remain within the approved segment limit.

No TM5 Power Bus Generation

The TM5SPS1 does not generate current for the internal TM5 power bus.

This is its main difference from the TM5SPS2.

The TM5 internal power bus supplies the electronics of downstream I/O slices, while the I/O power segment supplies field-side circuits and output loads.

TM5SPS1 should be selected when:

• TM5 bus electronics power is still sufficient
• Only field-side 24 V DC power must be renewed
• A new load group is required
• High-current outputs need separate protection
• Sensitive and noisy loads must be separated

It should not be selected to solve an internal TM5 bus-current shortage.

Left-Isolated Power Segment

The module is installed on a bus base that isolates the new 24 V DC I/O segment from the segment on its left.

This permits separate power groups for:

• Digital outputs
• Solenoid loads
• Sensitive sensor circuits
• Machine sections
• Independent emergency-stop zones
• Separately protected branch circuits

The isolation is between power segments. It is not individual electrical isolation for every connected I/O channel.

Required Bus Base

The TM5SPS1 electronic module requires one of the following compatible bus bases.

TM5ACBM01R

Left-isolated bus base for a 24 V DC I/O power segment.

TM5ACBM05R

Left-isolated bus base with address-setting capability.

The bus base is a separate assembly component and should be confirmed before ordering or shipment.

Required Terminal Block

The correct terminal block is:

TM5ACTB12PS

12-Pin Terminal Block

The terminal block provides the wiring points for the external 24 V DC supply and the power-segment connections.

Before installation, verify:

• Correct terminal-block reference
• Correct bus-base reference
• Terminal coding
• Supply polarity
• Conductor size
• External protection
• Existing power-segment boundaries

The electronic module alone is not a complete TM5 slice.

External 24 V DC Supply

The TM5SPS1 must be connected to an external regulated 24 V DC power supply.

The external source must be sized for:

• Total downstream load current
• Output-module switching loads
• Sensor power demand
• Startup current
• Cable voltage drop
• Protective-device coordination
• Future station expansion

The TM5SPS1 does not accept AC mains input and does not generate 24 V DC by itself.

Field-Load Power Renewal

A long or heavily loaded TM5 station may experience increased field-power demand.

The TM5SPS1 can be installed at the point where a new field-power segment is needed.

Typical reasons include:

• Adding more output modules
• Adding solenoid valves
• Separating machine sections
• Reducing voltage drop
• Providing independent branch protection
• Isolating sensitive input loads from switched outputs

This is field-load power renewal, not TM5 electronics-bus renewal.

Not a Communication Module

The TM5SPS1 does not provide:

• Ethernet communication
• CANopen communication
• Sercos communication
• Fieldbus coupling
• PLC processing
• Motion control

TM5 data communication continues through the existing system bus and controller or interface module.

The module only manages field-side power distribution.

Not an I/O Module

The TM5SPS1 contains no standard process input or output channels.

It does not:

• Read sensors as digital inputs
• Switch actuators as digital outputs
• Measure analog signals
• Generate analog commands
• Execute a control program

Its status information is used for module and supply monitoring only.

Status Indication

The module provides LED indication for operating and fault conditions.

Run LED

Indicates module power, reset, preoperational or operating state.

Error LED

Can indicate an invalid supply condition, bus-related fault or invalid firmware state.

The status LEDs help diagnose power-segment problems but do not replace voltage and current measurements during troubleshooting.

TM5SPS1 vs TM5SPS2

TM5SPS1

Supplies only the 24 V DC I/O power segment.

Maximum I/O segment current is 10 A.

Generates no additional TM5 power-bus current.

TM5SPS2

Supplies the 24 V DC I/O power segment.

Also generates power for the internal TM5 power bus.

Used when both field power and electronics-bus power must be renewed.

This difference must be considered when expanding a TM5 station.

TM5SPS1 vs TM5SPS1F

TM5SPS1

Standard I/O power distribution module.

External branch protection must follow the system design.

TM5SPS1F

I/O power distribution version with an internal fuse arrangement.

Used where the fused-module configuration is required.

The two references should not be treated as identical.

TM5SPS1 vs Common Distribution Module

TM5SPS1

Introduces and distributes power to a new 24 V DC I/O segment.

Common Distribution Module

Provides additional common terminals such as 0 V DC or 24 V DC connection points.

A common distribution module does not replace the TM5SPS1 when a new isolated power segment is required.

Station Planning

Before adding the TM5SPS1, calculate:

• Downstream I/O load current
• External 24 V DC capacity
• Required segment isolation
• Fuse or breaker rating
• Conductor size
• Terminal capacity
• Voltage drop
• TM5 bus-current demand

Because TM5SPS1 generates no TM5 bus current, internal electronics-power calculations must be completed separately.

Replacement Identification

Correct Model Number

TM5SPS1

Correct Product Type

I/O Power Distribution Module

I/O Segment Capacity

10 A Maximum

TM5 Bus Current Generated

None

Required Bus Base

TM5ACBM01R or TM5ACBM05R

Required Terminal Block

TM5ACTB12PS

Before replacement, confirm:

• Complete model number
• Existing bus base
• Existing terminal block
• External 24 V DC source
• Downstream field-load current
• Segment-isolation requirement
• External protection
• Wiring polarity
• Module location in the station

Do not select the module only according to the TM5 housing appearance.

Installation Guidelines

Disconnect the external 24 V DC supply.

Verify that affected circuits are de-energized.

Record the existing power wiring.

Identify the current power-segment boundary.

Calculate the downstream load.

Verify the bus-base reference.

Verify the terminal-block reference.

Install the bus base on the DIN rail.

Fit the TM5SPS1 electronic module.

Install the 12-pin terminal block.

Connect the external 24 V DC supply.

Check polarity and conductor size.

Verify branch protection.

Restore power.

Check the run and error LEDs.

Measure the downstream supply voltage.

Test the connected I/O loads.

Return the machine to service only after functional verification.

Installation should be completed by qualified automation personnel.

FAQ

Q1: What is TM5SPS1?

A1: It is a Modicon TM5 power distribution module for a 24 V DC I/O power segment.

Q2: How much current can it provide?

A2: It can distribute up to 10 A to the downstream I/O power segment.

Q3: Does it supply the internal TM5 power bus?

A3: No. It does not generate additional TM5 power-bus current.

Q4: What is the difference between TM5SPS1 and TM5SPS2?

A4: TM5SPS1 supplies only the I/O power segment, while TM5SPS2 supplies both the I/O segment and the internal TM5 power bus.

Q5: Is it a standalone 24 V DC power supply?

A5: No. It requires an external regulated 24 V DC source.

Q6: Can it create a separate power segment?

A6: Yes. With the correct left-isolated bus base, it starts a new 24 V DC I/O power segment.

Q7: Which bus base does it require?

A7: It uses TM5ACBM01R or TM5ACBM05R, depending on the station design.

Q8: Which terminal block is required?

A8: It uses the TM5ACTB12PS 12-pin terminal block.

Q9: Does it provide digital or analog I/O channels?

A9: No. It is a power-distribution module and contains no standard process I/O channels.

Q10: Can it solve a TM5 internal bus overload?

A10: No. Because it generates no TM5 power-bus current, a module such as TM5SPS2 may be required when internal electronics power must also be renewed.