Installation manual
30
Option terminals
Extended I/O option card terminals (VW3 A3 202)
Maximum wire size:
1.5 mm² - AWG 16
Max. tightening torque:
0.25 Nm - 2.21 lb.in
Characteristics and functions of the terminals
Terminal Function Electrical characteristics
R4A
R4B
R4C
Common point C/O contact R4C
of
programmable relay R4
• Minimum switching capacity: 3 mA for 24 V c
• Maximum switching capacity on resistive load:
5 A for 250 V a or 30 V c
• Maximum switching capacity on inductive load (cos ϕ = 0.4 L/R = 7 ms):
1.5 A for 250 V a
or 30 V c
• Reaction time: 10 ms ± 1 ms
• Service life: 100,000 operations
-10 -10 V c power supply for reference
potentiometer 1 to 10 k
Ω
•- 10 V c (-10.5 V ± 0.5V)
• 10 mA max.
AI3 + + polarity of the current differential
analog input AI3
• Analog input X - Y mA, X and Y can be programmed from 0 to 20 mA,
impedance 250 Ω
• Reaction time: 5 ms ± 1 ms
• 11-bit resolution + 1 sign bit, accuracy ± 0.6% for Δθ = 60°C (140°F)
• Linearity ± 0.15% of max. value
AI3 - - polarity of the current differential
analog input AI3
AI4 Depending on software configuration:
Analog current input
or
Analog voltage input
• Analog input 0 to +10 V c (max. safe voltage 24 V), impedance 30 kΩ
or
• Analog input X - Y mA, X and Y can be programmed from 0 to 20 mA,
impedance 250 Ω
• Reaction time: 5 ms ± 1 ms
• 11-bit resolution, accuracy ± 0.6% for Δθ = 60°C (140°F), linearity ± 0.15% of max. value
COM Analog I/O common 0 V
AO2
AO3
Depending on software configuration:
Analog voltage outputs
or
Analog current outputs
• 0 - 10 V c or -10/+10 V c bipolar analog output depending on software,
load
impedance greater than 50 kΩ
or
• Analog current output X-Y mA, X and Y can be programmed from 0 to 20 mA,
max.
load impedance 500 Ω
• 10-bit resolution
• Reaction time 5 ms ± 1 ms, accuracy ± 1% for Δθ = 60°C (140°F), linearity ± 0.2%
R4A
0V
SW4
TH2+
R4B
AO3
R4C
-10
AI3+
AI3-
AI4
COM
AO2
+24
LI11
LI12
LI13
LI14
CLO
0V
LO4
LO3
RP
TH2-
Ext
Source
Sink
Int
Logic input switch SW4
Factory setting: Source