Vacon NX User Manual page 93

ELECTRICAL CABLING AND CONNECTIONS
Terminal
21 RO1/1
22 RO1/2
23 RO1/3
24 RO2/1
25 RO2/2
RO2/3
26
6.2.3.1 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 +24 V or ground (0 V). See Figure 47.
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
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Table 41. Control I/O terminal signals
Signal
OPT-A2
Relay output 1 Max. switching voltage
Max. switching current
Min. switching load
Relay output 2 Max. switching voltage
Max. switching current
Min. switching load
Ground
DIN1
DIN2
DIN3
+24V
CMA
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'
Figure 47. Positive/Negative logic
vacon • 91
Technical information
250 VAC, 125 VDC
8 A/24 VDC,
0.4 A/250 VDC
5 V/10 mA
250 VAC, 125 VDC
8 A/24 VDC,
0.4 A/250 VDC
5 V/10 mA
DIN1
DIN2
DIN3
CMA
11356_uk
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