Aalborg TIO Totalizer I/O Flow Monitor/Controller - Manual (Page 10)

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4.2 Process Variable (PV) Input Signal Connections
Depending on the jumper J2 configuration Input signal can be set to 0-5, 5-10,
0-10 Vdc or 4-20 mA.
CAUTION: Do not apply power voltage above 28Vdc.
Doing so will cause device damage or faulty operation.
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CAUTION: When connecting the external signals to the input terminals
always check actual jumper J2 configuration. Do not exceed the rated
values shown in the specifications (see Table 4.1). Failure to do so
might cause damage to this device. Be sure to check if the wiring
and the polarity of the power supply and PV signals are correct before
turning the power ON. Wiring error may cause damage or faulty
operation.
ƽ
Make sure power is OFF when connecting or disconnecting any
cables or wires in the system.
ƽ
The power supply (PS), process variable (PV) input, set point (SP) control out-
put, and digital communication interface signals are connected to the TIO via
miniature 9 pin female D-SUB connector.
4.1 Power Supply Connections
The power supply requirements for TIO are: 12 to 26 Vdc, (unipolar power sup-
ply).
DC Power (+) --------------- pin 2 of the 9 pin "D" connector
DC Power (-) --------------- pin 1 of the 9 pin "D" connector