General Description

Introduction

The TM3 safety modules are digital I/O functional safety modules and they can be used to incorporate machine safety into the overall machine control.

The TM3 safety modules are designed to be connected to the M221, M241, M251 logic controllers.

The safety-related functions are managed uniquely by the safety module, independent from the rest of the system. Any communication dependant function is not considered as safety-related.

WARNING

UNINTENDED EQUIPMENT OPERATION

Do not use the data transferred over the TM3 Bus for any functional safety-related task(s).

Failure to follow these instructions can result in death, serious injury, or equipment damage.

TM3 Safety Terminology

This table lists the technical terms, acronyms, abbreviations, and their respective description:

Term used	Description
EDM	External Device Monitoring
ESPE	Electro-Sensitive Protective Equipment
K	Refers to: oK1: internal relay oK2: internal relay oK3: external contactor oK4: external contactor
PL	Performance Level
SIL	Safety Integrity Level
S	Refers to safety inputs: oSafety or start inputs: oS11-S12 oS21-S22 oS31-S32 oS41-S42 oExternal switches S1, S2, S3, and so on. NOTE: The function depends on the module type.
Start	Refers to: oNon-monitored: may be manual or automatic mode. Start button must be closed for valid start condition. oMonitored: start button must be pressed and then released for valid start condition.

Application

Safety systems comprise many components. A single safety component in and of its own does not constitute the safety system. The design of the entire safety system must be considered before attempting to install, operate, or maintain it. The applicable safety standards must be followed when installing and wiring the system components. For more information, refer to the Document Scope.

Safe State

The TM3 safety modules are operationally defined to be in a safe state when their outputs are off. To exit the safe state condition, a combination of hardware inputs and enabling TM3 Bus communications are required.

The information transacted on the TM3 Bus is not considered part of the safety-related functionality.

WARNING

UNINTENDED EQUIPMENT OPERATION

Do not use the data transferred over the TM3 Bus for any functional safety-related task(s).

Failure to follow these instructions can result in death, serious injury, or equipment damage.

TM3 Safety Modules

This table contains the TM3 safety modules, with the corresponding channel type, nominal voltage/current, and terminal type:

Reference	Function Category	Channels	Channel type	Voltage Current	Terminal type
TM3SAC5R	1 function, up to category 3	1 or 2 ⁽¹⁾	Safety input	24 Vdc 100 mA maximum	3.81 mm (0.15 in.) and 5.08 mm (0.20 in.), removable screw terminal block
		Start ⁽²⁾	Input	24 Vdc 100 mA maximum
		3 in parallel	Relay outputs Normally open	24 Vdc / 230 Vac 6 A maximum per output
TM3SAC5RG	1 function, up to category 3	1 or 2 ⁽¹⁾	Safety input	24 Vdc 100 mA maximum	3.81 mm (0.15 in.) and 5.08 mm (0.20 in.), removable spring terminal block
		Start ⁽²⁾	Input	24 Vdc 100 mA maximum
		3 in parallel	Relay outputs Normally open	24 Vdc / 230 Vac 6 A maximum per output
TM3SAF5R	1 function, up to category 4	2 ⁽¹⁾	Safety inputs	24 Vdc 100 mA maximum	3.81 mm (0.15 in.) and 5.08 mm (0.20 in.), removable screw terminal block
		Start	Input	24 Vdc 100 mA maximum
		3 in parallel	Relay outputs Normally open	24 Vdc / 230 Vac 6 A maximum per output
TM3SAF5RG	1 function, up to category 4	2 ⁽¹⁾	Safety inputs	24 Vdc 100 mA maximum	3.81 mm (0.15 in.) and 5.08 mm (0.20 in.), removable spring terminal block
		Start	Input	24 Vdc 100 mA maximum
		3 in parallel	Relay outputs Normally open	24 Vdc / 230 Vac 6 A maximum per output
TM3SAFL5R	2 functions, up to category 3	2 ⁽¹⁾	Safety inputs	24 Vdc 100 mA maximum	3.81 mm (0.15 in.) and 5.08 mm (0.20 in.), removable screw terminal block
		Start	Input	24 Vdc 100 mA maximum
		3 in parallel	Relay outputs Normally open	24 Vdc / 230 Vac 6 A maximum per output
TM3SAFL5RG	2 functions, up to category 3	2 ⁽¹⁾	Safety inputs	24 Vdc 100 mA maximum	3.81 mm (0.15 in.) and 5.08 mm (0.20 in.), removable spring terminal block
		Start	Input	24 Vdc 100 mA maximum
		3 in parallel	Relay outputs Normally open	24 Vdc / 230 Vac 6 A maximum per output
TM3SAK6R	3 functions, up to category 4	1 or 2 ⁽¹⁾	Safety inputs	24 Vdc 100 mA maximum	3.81 mm (0.15 in.) and 5.08 mm (0.20 in.), removable screw terminal block
		Start	Input	24 Vdc 100 mA maximum
		3 in parallel	Relay outputs Normally open	24 Vdc / 230 Vac 6 A maximum per output
TM3SAK6RG	3 functions, up to category 4	1 or 2 ⁽¹⁾	Safety inputs	24 Vdc 100 mA maximum	3.81 mm (0.15 in.) and 5.08 mm (0.20 in.), removable spring terminal block
		Start	Input	24 Vdc 100 mA maximum
		3 in parallel	Relay outputs Normally open	24 Vdc / 230 Vac 6 A maximum per output
⁽¹⁾ Depending on external wiring ⁽²⁾ Non-monitored start