Vacon NXP Series User Manual page 61

60 • vacon
OPT-A2
Terminal
21 RO1/1
22 RO1/2
23 RO1/3
24 RO2/1
25 RO2/2
26 RO2/3
Table 8-4. Control I/O terminal signals on basic relay board OPT-A2
OPT-A3
Terminal
21 RO1/1
22 RO1/2
23 RO1/3
25 RO2/1
26 RO2/2
28 TI1+
29 TI1–
Table 8-5. Control I/O terminal signals on basic relay board OPT-A3
8.2.2.1 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 (0 V). See Figure 8-7.
The 24-volt control voltage and the ground for the digital inputs and the common inputs (CMA, CMB) can be
either internal or external.
+24V
Ground
nk6_16
Positive logic (+24V is the active signal) =
the input is active when the switch is closed
Figure 8-7. Positive/Negative logic
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Signal
Relay output 1
Relay output 2
Signal
Relay output 1
Relay output 2
Thermistor input
DIN1
DIN2
DIN3
CMA
INSTALLATION INSTRUCTIONS
Technical information
Switching capacity
Min.switching load
Switching capacity
Min.switching load
Technical information
Switching capacity
Min.switching load
Switching capacity
Min.switching load
Ground
+24V
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'
24VDC/8A
250VAC/8A
125VDC/0.4A
5V/10mA
24VDC/8A
250VAC/8A
125VDC/0.4A
5V/10mA
24VDC/8A
250VAC/8A
125VDC/0.4A
5V/10mA
24VDC/8A
250VAC/8A
125VDC/0.4A
5V/10mA
DIN1
DIN2
DIN3
CMA