EAAM057608EN
GC250 Technical Manual 43
5.8.1
T.16..19 DIGITAL INPUTS
The device has 4 digital inputs, which can be activated by connecting them to GND. When left
flowing, the inputs go to around 4.5VDC (around 4.15VDC for input T.16). Avoid situations
where intermediate or undefined voltage levels can occur.
If you don’t use the same signal shared among different devices beside GC250, it is
recommendable the use of series diodes at the inputs as per the following figure:
By default, the functions of the inputs are the following:
Terminal
Function
T.16
DIF.0000
– “Not used”
T.17
DIF.0000
– “Not used”
T.18
DIF.4201
– “Emergency stop”
T.19
DIF.2501
– “Genset start inhibition”
WARNING!:
input T.18 is by default configured to manage the emergency stop
command signal; for safety reasons, this function uses an inverted logic, that is,
during the normal operation the terminal T.18 must remain connected with GND
through a NC contact in the emergency button; when the contact opens, the relative
alarm is generated (see principle diagram par. 0)
5.8.2
T.16 D+ Input used as analogue input
Input
T.16
can be configured to acquire analogue signals of 0..10VDC voltage by selecting in
parameter P.4033 one of the functions typical of the analogue tools. By default, the parameter
is set with function
AIF.0100 -
“Used as digital input
”. See par. 5.7.2
OTHER
DEVICE
GC250
T.1x
