Specifications

GEVA User’s Reference 405-00024-00
28 Rev 02; 9 November 2010
Input Electrical Specifications
GEVA inputs IN(7–0) are opto-isolated, TRIG1and TRIG2 are solid state. All inputs are polarity
insensitive and can be connected to either sourcing (PNP) or sinking (NPN) outputs. They require
no external pull-up or pull-down resistors and can accept input voltage levels up to 30 Volts. All
inputs support programmable threshold level and debounce period.
NOTE The default threshold voltage is 12 Volts (for a 24 Volt environment). You can
override this value in iNspect and Sherlock. Changes persist after the iNspect or
Sherlock program is closed. The default 12 Volts returns when the GEVA is pow-
ered up.
NOTE The trigger voltage level is NOT passed through to the Genie camera.
• The iNspect thresholds are controlled in the Setup Inputs panel, and saved in the Solution file.
The GEVA does not
use the GIOtest.txt file (only the VA61 uses that file).
• The Sherlock thresholds can be controlled by values in the configuration file. The path to this
file is stored in the “IfcDrv.ini” file found in the Sherlock\Drivers directory. Usually this file is
at D:\VAGenie\Config. The user can save it at any location and alter the path in IfcDrv.ini.
Signal state
Min. Max
Input voltage range 0 V 30 V
Programmable threshold 0 V * 18 V
Input protection resistance 1180 ohms
Typical current at 24 V 19 mA
Isolation 3750 RMS
* a higher threshold results in more noise immunity or noise rejection.
+ input
Common
3.3 Volts
Same polarity
as the input
1180 ohms
Figure 12. Opto-isolated Inputs