Eaton SPI9000 User Manual download pdf (Page 45)

SPI9000 Inverter Unit FR4 – FR8 User Manual

MN04004003E

For more information visit: www.EatonElectrical.com 4-7

April 2006

Table 4-3: Control I/O Terminal Signals on Option Board A2

Table 4-4: Control I/O Terminal Signals on Option Board A3

Digital Input Signal Inversions

The active signal level depends on which potential the common inputs CMA and CMB

(terminals 11 and 17) are connected to. The alternatives are either +24V or ground (0V). See

Figure 4-9.

We recommend the use of positive logic in all control connections of the inverter. If negative

logic is used, additional appropriate measures are needed to meet the safety regulation

requirements.

The 24 volt control voltage and the ground for the digital inputs and the common inputs

(CMA, CMB) can be either internal or external.

Figure 4-9: Positive/Negative Logic



Positive logic (+24V is the active signal) = the input is active when the switch is closed.



Negative logic (0V is the active signal) = the input is active when the switch is closed.



Requires setting of jumper X3 to position “CMA/CMB isolated from ground.”

OPTA2

21 RO1/1 Relay output 1 Switching capacity 24V DC/8A

250V AC/8A

125V DC/0.4A

5V/10 mA

22 RO1/2

23 RO1/3 Min. switching load

24 RO2/1 Relay output 2 Switching capacity 24V DC/8A

250V AC/8A

125V DC/0.4A

5V/10 mA

25 RO2/2

26 RO2/3 Min. switching load

OPTA3

21 RO1/1 Relay output 1 Switching capacity 24V DC/8A

250V AC/8A

125V DC/0.4A

5V/10 mA

22 RO1/2

23 RO1/3 Min. switching load

24 RO2/1 Relay output 2 Switching capacity 24V DC/8A

250V AC/8A

125V DC/0.4A

5V/10 mA

25 RO2/2

26 RO2/3 Min. switching load

28 TI1+ Thermistor input

29 TI1-

DIN1

24V

DIN2

DIN3

CMA

Ground

DIN1

Ground

DIN2

DIN3

CMA

24V

1 2

 



1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 91 92

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