
4-channel digital output terminal, Safety
A safe output terminal with digital outputs for connecting devices with maximum current 0.5 A (24 VDC). The terminal has 4 fail-safe outputs. The terminal meets the requirements of IEC 61508:2010 SIL 3, DIN EN ISO 13849-1:2015 (Cat 4, PL e), UL508, UL1998 and UL991.

Specifications
Please refer to the KAS webhelp for important information regarding the application and use of safety rated I/O terminals.
Technical Data | AKT2G-SDO-004-000 |
---|---|
Number of outputs | 4 |
Status display | 4 (one green LED per output) |
Error reaction time | ≤ watchdog times |
Output current per channel | max. 500 mA, min. 20 mA with parameter current measurement active set |
Actuators | When selecting actuators please ensure that the AKT2G-SDO-004-000 test pulses do not lead to actuator switching. |
Cable length between actuator and terminal | unshielded max. 100 m shielded max. 100 m |
Wire cross section | min. 0.75 mm2 |
Input process image | 6 bytes |
Output process image | 6 bytes |
AKT2G-SDO-004-000 supply voltage (PELV) | 24 VDC (–15%/+20%) |
Current consumption via E-bus | approx. 221 mA |
Power dissipation of the terminal | typically 2 W |
Electrical isolation (between the channels) | no |
Electrical isolation (between the channels and the E-bus) | yes |
Insulation voltage (between the channels and the E-bus, under common operating conditions) | insulation tested with 500 VDC |
Dimensions (W x H x D) | 24mm x 100mm x 68mm |
Weight | approx. 100 g |
Permissible ambient temperature (operation) up to SW 03 | 0°C to +55°C (see note in Installation position and minimum distances) |
Permissible ambient temperature (operation) from SW 04 (week 02/2014) | -25°C to +55 °C (see note in Installation position and minimum distances) |
Permissible ambient temperature (transport/storage) | -40°C to +70°C |
Permissible air humidity | 5% to 95%, non-condensing |
Permissible air pressure (operation/storage/transport) | 750 hPa to 1100 hPa (this corresponds to a height of approx. -690 m to 2450 m over sea level assuming an international standard atmosphere) |
Climate category according to EN 60721-3-3 | 3K3 (the deviation from 3K3 is possible only with optimal environmental conditions and also applies only to the technical data which are specified differently in this documentation) |
Permissible level of contamination according to EN 60664-1 | level of contamination 2 (comply with the section Safety I/O Maintenance) |
Impermissible operating conditions | safety terminals must not be used under the following operating conditions:
|
EMC immunity/emission | conforms to EN 61000-6-2 / EN 61000-6-4 |
Vibration/shock resistance | conforms to EN 60068-2-6 / EN 60068-2-27 |
Shocks | 15 g with pulse duration 11 ms in all three axes |
Protection class | IP20 |
Permitted operating environment | In the control cabinet or terminal box, with minimum protection class IP54 according to IEC 60529 |
Permissible installation position | see section Installation position and minimum distances |
Approvals | CE, cULus |
Media & Downloads
Title | File Language | Date | Share URL |
---|---|---|---|
AKT2G I/O Manual EN | English | |
Share URL /sites/default/files/public_downloads/AKT2G_IO.pdf |
These files cover the standard product family line. For environmental declarations for custom products, i.e. part numbers containing “S” or “X”, visit our Environmental Compliance search.
Title | File Language | Date | Share URL |
---|---|---|---|
AKT2G_SDI_safety certificate_FSM_EU_Eng | English | |
Share URL /sites/default/files/2024-09/AKT2G_SDI_safety%20certificate_FSM_EU_Eng.pdf |
AKT2G_SDO_safety certificate_FSM_EU_Eng | English | |
Share URL /sites/default/files/2024-09/AKT2G_SDO_safety%20certificate_FSM_EU_Eng.pdf |
Kollmorgen EU Declaration of Conformity AKT2G (DE) | English | |
Share URL /sites/default/files/public_downloads/ce_AKT2G%20IO_e.pdf |
These 3D models are intended to guide your design activities and may be used as reference information. Be sure to consult a Kollmorgen expert to ensure you have the most current and accurate information for critical aspects of design work.
Title | File Language | Date | Share URL |
---|---|---|---|
AKT2G CAD Models & 2D Drawings | English | |
Share URL /sites/default/files/2025-02/AKT2G-3D-Models.zip |
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