AutomationDirect IronHorse GSDA-AI-A8 Benutzerhandbuch - Seite 5
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IronHorse GSDA-AI-A8 General Information
Standard Features
• Plug-in option card (Slot 100 or 200)
• Auto/Manual Input (Dry contact)
• Optically isolated 4 to 20mA input, (Target Speed Reference)
• Optically isolated 4 to 20mA output, (Motor Actual Speed, Tach Driven)
• Programmable, form C Relay output, (Alarm 2)
Warranty
AutomationDirect, Inc. (ADC) warrants its products to be free from defects in material and
workmanship. The exclusive remedy for this warranty is ADC factory replacement of any part or parts
of such product which shall within 12 months after delivery to the purchaser be returned to ADC
factory with all transportation charges prepaid and which ADC determines to its satisfaction to be
defective. This warranty shall not extend to defects in assembly by other than ADC or to any article
which has been repaired or altered by other than ADC or to any article which ADC determines has been
subjected to improper use. ADC assumes no responsibility for the design characteristics of any unit
or its operation in any circuit or assembly. This warranty is in lieu of all other warranties, express or
implied; all other liabilities or obligations on the part of ADC, including consequential damages, are
hereby expressly excluded.
NOTE: Carefully check the GSDA-AI-A8 for shipping damage. Report any damage to the carrier
immediately. Do not attempt to install the card if visible damage is evident to either the circuit or to
the electronic components.
GSDA-AI-A8 Overview
The GSDA-AI-A8 is an "option card" featuring an Optically-Isolated 4-20 mA Current Loop Input and
an Optically-Isolated 4-20 mA Current Loop Output. Both the input and output are Optically-Isolated
from the GSD8 Drive, circuit common, earth ground, and from each other. In addition, a non-isolated
SPST switch input is provided. In the typical application with a GSD8-240 drive, that switch is used
to determine where the GSD8 Drive gets its "Target Speed" setting. Additionally, the GSD8-240-5C-D,
10C-D, and 10N4X drives have an "Auto/Manual" LED indicator which displays whether the source
of the Target Setting comes from the 4-20 mA input ("Auto") or from the "front panel" Target setting
("Manual"). Both the input and output 4-20 mA loops require customer supplied 9-36 VDC loop
excitation power supplies.
In "Manual" mode, the GSD8 Drive uses its normal Front Panel display and Up/Down buttons to set
the Target Speed (or Time). However, in "Auto" mode, the GSD8 Drive follows the GSDA-AI-A8's 4-20
mA Current Loop signal. In either mode, the GSDA-AI-A8's Current Loop Output provides a real-time
updating 4-20 mA signal that represents the GSD8 Drive motor's Actual (Tach) Speed. This is primarily
used by a SCADA system to provide "feedback" that the SCADA's speed setting was received and acted
upon by the GSD8 Drive.
IronHorse GSDA-AI-A8 User Manual – 1st Edition – 06/13/2019
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