Halytech
hydroSpider2 User’s Manual v1.23
Page 8
2.6.1
I/O and Power Connector
This section describes the pins on the standard hydroSpider’s green I/O and Power connector. These
pins are labelled on the lid of the hydroSpider.
Label
Name
Function(s)
Comment
GND
GND
Ground
Common for all signals
AIN1
AIN1
Analogue 1
(Voltage 0 - 2.4V
or
Current 4-20mA)
User selectable
DIN1
DIN1
Switch 1
Counter 1
Quadrature 1a
Active is short to ground
OC
OC OUT
Open Collector Output
Driven by control 2,
nominal 10 mA
DIN2
DIN2
Switch 2
Counter 2
Quadrature 1b
Active is short to ground
AIN2
AIN2
Analogue 2
(Voltage 0 - 2.4V
or
Current 4-20mA)
User selectable
SWP
PWR OUT
Switched Power Out
Driven by control 1, max 1A
BATT
PWR IN
External Power In
or Battery
Nominal 12V DC
max 7.2Ah battery
CHG
CHARGER IN
Charger Supply In
16V – 24V 2A DC or
12V Solar Panel
GND
GND
Ground
Common for all signals
Note
: the two GND pins are equivalent and all inputs and outputs are referenced to this common
ground.
Note:
hydroSpiders fitted with optional SDI-12 / RS-485 or RS-232 interfaces have different pinouts.
Please refer to Appendix A - SDI-12 / RS-485 and Appendix B - RS-232 for information on these
changes.
2.6.2
Connecting power
Connect the positive of the selected 12V DC 1A power source to the
BATT
(PWR IN) pin and the
negative to a
GND
pin. Take caution to observe the correct polarity to avoid damaging the
hydroSpider.
Note
that if you wish to use the charger feature of the hydroSpider, then you must use a 12V SLA
rechargeable battery of
no more than 7.2Ah capacity
. Otherwise, any 12V battery or 12V DC supply
capable of supplying 1A current can be used.
