Specifications
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Modicon
™
Momentum
™
automation platform
Analog I/O bases
Specications for analog output bases
Type of base units 170 AAO 120 00 170 AAO 921 00
Number of outputs 1 x 4
Format of data Full 16 bits signed (2’s complement)
Protection Base and actuators Polarity inversion
Ranges ± 10 V 0…20 mA ± 10 V 4…20 mA
Load impedance
kW
1 minimum 0.6 maximum 1 minimum 0.6 maximum
Capacitive load µF < 1
Maximum variation at 25 °C % 0.2 PE 0.3 PE 0.2 PE 0.4 PE
Maximum variation at 60 °C % 0.25 PE 0.4 PE 0.25 PE 0.5 PE
Temperature drift (60 °C) ‰ 10 PE / °C 30 PE / °C 10 PE / °C 30 PE / °C
Resolution 12 bits + sign
Update time ms < 2
Full scale 10 V in the range of ± 10V
2 mA in the range of 0…20 mA
Fail State Hold, reset to zero, reset to full scale
Potential isolation Channel to channel None
Base power supply and ground Vdc 500 for 1 minute
Channels to ground Vac 500 for 1 minute
Outprotections Short-circuits in the voltage circuits, open in current polarity inversion
Base power V ± 30 (voltage or current output)
Common mode rejection Vac 250 @ 47…63 Hz or 250 DC channel to ground
Operating voltage Vdc 24
Internal current Base mA 530 @ 24 Vdc
Actuators mA 150 @ 24 Vdc
Power dissipation Typical W 5.6
Maximum W 8.5
Internal fusing A 2, slow-blow
Agency approvals UL, e, CSA
References :
pages 34 and 35
Dimensions :
page 35
Wiring diagrams :
pages 36 and 37
Specications (continued)