TM5SAI4AFS Characteristics

Introduction

This section describes the characteristics of the TM5SAI4AFS module. See also TM5 Environmental Characteristics.

DANGER
	FIRE HAZARD Use only the correct wire sizes for the maximum current capacity of the I/O channels and power supplies. Failure to follow these instructions will result in death or serious injury.

WARNING
	UNINTENDED EQUIPMENT OPERATION Do not exceed any of the rated values specified in the environmental and electrical characteristics tables. Failure to follow these instructions can result in death, serious injury, or equipment damage.

General Characteristics

The following table lists the general characteristics of the TM5SAI4AFS module:

General characteristics
Rated power supply voltage		24 Vdc
Status indicators		I/O functions per channel operating state module status
Diagnostics	module run and detected error	indicated by status LED indicator and software status
Diagnostics	inputs	indicated by status LED indicator and software status
Electrical isolation⁽¹⁾	channel - bus	See note.
	channel - channel	See note.
	channel pair - channel pair	See note.
TM5 Bus 5 Vdc current draw		50 mA
24 Vdc I/O segment current draw		70.8 mA
Certifications and standards		Refer to www.se.com for the latest information regarding certifications and standards.
Maximum internal cycle time		2000 µs
I/O update time		500 µs (refer also to the information signal processing time of the module, described in the section Safety-Related Analog Inputs Characteristics)
Id code for firmware update		47285 dec

NOTE ⁽¹⁾ The isolation of the electronic module is 500 Vac RMS between the electronics power by the TM5 bus and those powered by 24 Vdc I/O power segment connected to the module. In practice, the electronic module is installed in the bus base, and there is a bridge between the TM5 power bus and the 24 Vdc I/O power segment. The two power circuits reference the same functional ground (FE) through specific components designed to reduce effects of electromagnetic interference. These components are rated at 30 Vdc or 60 Vdc. This effectively reduces isolation of the entire system from the 500 Vac RMS.

Operating Conditions

The following table lists the operating conditions for the TM5SAI4AFS module:

Operating conditions
Mounting orientation		horizontal or vertical
Operating temperature	horizontal installation	0...+55 °C (+32...131 °F), for derating refer to following table¹
Operating temperature	vertical installation	0...+40 °C (+32...104 °F), for derating refer to following table¹
Relative humidity		5...95%, non-condensing
Installation at altitudes above sea level:	0 up to 2000 m (0 up to 6561 ft)	no derating for altitude
Installation at altitudes above sea level:	> 2000 m (>6561 ft)	reduction of ambient temperature by 0.5 °C per 100 m (0.9 °F per 328 ft)
EN 60529 Protection type		IP20

¹ Derating in relation to operating temperature and mounting orientation:

Mounting and temperature	Number of usable signal pairs
Horizontal mounting orientation up to 50 °C (122 °F)	2
Horizontal mounting orientation up to 55 °C (131 °F)	1, with addition of a TM5SD000, see hazard message below.
Vertical mounting orientation up to 35 °C (95 °F)	2
Vertical mounting orientation from 35...40 °C (95...104 °F)	1, with addition of a TM5SD000, see hazard message below.

NOTICE
	OVERHEATING You must insert a TM5SD000 next to the TM5SAI4AFS module (right or left) beginning at 50 °C (122 °F) for horizontal installations or 35 °C (95 °F) for vertical installations. Failure to follow these instructions can result in equipment damage.

Storage and Transport Conditions

The following table lists the storage and transport conditions for the TM5SAI4AFS module:

Storage and transport conditions
Temperature	-40...+85 °C (-40...+121.0 °F)
Relative humidity	5...95%, non-condensing

Sensor Supply Characteristics

The following table lists the sensor supply characteristics for the TM5SAI4AFS module

Sensor supply characteristics
Rated voltage		29 Vdc ± 5%
Rated output current		maximum 60 mA per channel
Short circuit protection		yes, continuous
Electrical isolation¹⁾	sensor supply - channel	no
Electrical isolation¹⁾	sensor supply - sensor supply	See note.
Behavior on short circuit		Power removed

NOTE ⁽¹⁾ The isolation of the electronic module is 500 Vac RMS between the electronics power by the TM5 bus and those powered by 24 Vdc I/O power segment connected to the module. In practice, the electronic module is installed in the bus base, and there is a bridge between the TM5 power bus and the 24 Vdc I/O power segment. The two power circuits reference the same functional ground (FE) through specific components designed to reduce effects of electromagnetic interference. These components are rated at 30 Vdc or 60 Vdc. This effectively reduces isolation of the entire system from the 500 Vac RMS.

Safety-Related Analog Inputs Characteristics

The following table lists the safety-related analog input characteristics of the TM5SAI4AFS module:

Analog input
Number of input channels		2x 2 safety-related analog inputs, channels individually galvanically isolated
Input current range		4...20 mA (valid measurement range) 0.5...25 mA (input range)
Input type		Differential input
Digital converter resolution		24-bit
Conversion time		refer to following table
Output format		double word integer value
Load impedance		230 Ω to 420 Ω Product version PV:01 or later: 185 to 245 Ω
Input protection		protection against external supply voltages and overcurrent
Open line detection		yes, using software
Permitted input signal		maximum 30.5 V
Input signal tolerances	signal interference	maximum 0.5 % of measured value
	signal increase	maximum 220 µA/ms
	signal frequency	maximum 100 Hz
Conversion procedure		sigma delta
Maximum detected error at 25 °C (77 °F): Gain	0.5 to <4 mA	< 0.3% % ⁽²⁾
Maximum detected error at 25 °C (77 °F): Gain	4...25 mA	< 0.08 % ⁽²⁾
Maximum detected error at 25 °C (77 °F): Offfset	0.5 to <4 mA	< 2 μA
Maximum detected error at 25 °C (77 °F): Offfset	4...25 mA	< 6.3 μA
Common-mode rejection	DC	> 70 dB
Common-mode rejection	50 Hz	> 70 dB
Common-mode range		between the inputs ±50 V
Non-linearity		< 0.003 %
Resolution		1 µA/LSB
Overload detection		yes, using software
Maximum gain drift	0.5 to <4 mA	< 1.225 μA / 1 °C (1.8 °F)
Maximum gain drift	4...25 mA	< 1.225 μA / 1 °C (1.8 °F)
Maximum offset drift	0.5 to <4 mA	< 0.735 μA / 1 °C (1.8 °F)
Maximum offset drift	4...25 mA	< 0.735 μA / 1 °C (1.8 °F)
Isolation⁽¹⁾	channel and bus	See note.
	to ground	See note.
	channel pair and channel pair	See note.
Safety-related accuracy per channel	CAT 3	0.75 % ³⁾
Safety-related accuracy per channel	CAT 4	2.00 % ³⁾
Input filter	hardware	1 first-order low pass / cutoff frequency 500 Hz
Input filter	software	Sinc³⁾ filter
Measurement range		Up to firmware version 321: 3.6...21 mA Firmware version 322 or later: 0.5...25 mA
Filter time		configurable: 1; 2; 10; 16.7; 20; 33.3; 40; 66.7 ms
NOTE ⁽¹⁾ The isolation of the electronic module is 500 Vac RMS between the electronics power by the TM5 bus and those powered by 24 Vdc I/O power segment connected to the module. In practice, the electronic module is installed in the bus base, and there is a bridge between the TM5 power bus and the 24 Vdc I/O power segment. The two power circuits reference the same functional ground (FE) through specific components designed to reduce effects of electromagnetic interference. These components are rated at 30 Vdc or 60 Vdc. This effectively reduces isolation of the entire system from the 500 Vac RMS. ²⁾ = based on the current measured value ³⁾ = based on the 16 mA measurement range

The following table lists the signal processing time of the module resulting from the set input filter time value (update interval).

WARNING
	UNINTENDED EQUIPMENT OPERATION Verify that the signal processing time of the input module is included correctly in the safety response time calculations in EcoStruxure Machine Expert - Safety. Failure to follow these instructions can result in death, serious injury, or equipment damage.

Configured filter value	Maximum signal processing time of the module
1 ms	17 ms
2 ms	19 ms
10 ms	35 ms
16.7 ms	50 ms
20 ms	55 ms
33.3 ms	82 ms
40 ms	95 ms
66.7 ms	122 ms

Safety-Related Characteristics

NOTE: The following safety-related characteristics only apply when using input channel pairs (for example, SAI-1 together with SAI-2 or SAI-3 with SAI-4).

Criteria	Characteristic value for input channel pairs
Maximum performance level according to EN ISO 13849-1	PL e
Category according to EN ISO 13849-1	CAT 4
Maximum safety integrity level according to IEC 62061	SIL 3
Maximum safety integrity level according to IEC 61508	SIL 3
Maximum safety integrity level in accordance with EN IEC 61511	SIL 3
PFH	<1*10^-9
PFD	<510^-5 at a proof test interval of 10 years <110^-5 at a proof test interval of 20 years
PT	20 years
DC	>94%
SFF	>90%
MTTFd	2200 years
Life time	Maximum 20 years