Omron CRT1 - 10-2009, Operation Manual

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147
Units with Screw Terminal Blocks
Section 5-3
5-3-6 Eight-point Output Units (2-tier Terminal Block with Relay
Outputs)
CRT1-ROS08
Common Specifications
Relay Output Section Specifications (per Output)
Note (1) With a current of between 2 and 3 A (8 to 10 A per common), either en-
sure that the number of points per common that simultaneously turn ON
does not exceed 4 or ensure that the temperature does not exceed 45
°
C.
There are no restrictions if the current does not exceed 2 A (8 A per com-
mon).
(2) The rated current is the value for assuring normal operation, and not for
assuring durability of the relays. The relay service life depends greatly on
factors such as the operating temperature, the type of load, and switching
Item Specification
Communications power supply voltage 14 to 26.4 VDC
Noise immunity Conforms to IEC 61000-4-4, 2 kV (power line).
Vibration resistance 10 to 55 Hz with double-amplitude of 0.7 mm
Shock resistance 100 m/s
2
(3 times in 6 directions on 3 axes)
Dielectric strength 500 VAC (between isolated circuits)
Insulation resistance 20 M
Ω
min. (between isolated circuits)
Ambient operating temperature
−
10 to 55
°
C
Ambient operating humidity 25% to 85% (with no condensation)
Ambient operating atmosphere No corrosive gases
Storage temperature
−
25 to 65
°
C
Storage humidity 25% to 85% (with no condensation)
Terminal block screws tightening torque M3 wiring screws: 0.5 N
⋅
m
M3 mounting screws: 0.5 N
⋅
m
Item Specification
Model CRT1-ROS08
I/O capacity 8 outputs
Mounted Relays DRTA-NY5W-K (5 VDC)
Rated load Resistive load
250 VAC, 2 A, common: 8 A
30 VDC, 2 A, common: 8 A
Rated ON current 3 A
Maximum contact voltage 250 VAC, 125 VDC
Maximum contact current 3 A
Maximum switching capacity 750 VA AC, 90 W DC
Minimum applicable load (reference
value) 5 VDC, 1 mA
Mechanical service life 20,000,000 operations min.
Electrical service life 100,000 operations min.
Installation method DIN Track
Communications power supply current
consumption 95 mA max. for 24-VDC power supply voltage
150 mA max. for 14-VDC power supply voltage
Output hold for communications errors Select either hold or clear from CX-Integrator.
Weight 170 g max.