Cut Sheet

V7-T4-36 Volume 7—Logic Control, Operator Interface and Connectivity Solutions CA08100008E—February 2014 www.eaton.com
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4.2
PLC, I/O and Communications Products
XC Series Programmable Logic Controllers
XC121 Expansion Module
Description Unit XIO-EXT121-1
General
Standards IEC/EN 61131-2; EN 50178
Ambient temperature °F (°C) 32° to 131° (0° to 55°)
Storage °F (°C) –13° to 158° (–25° to 70°)
Mounting position Horizontal
Relative humidity, noncondensing (IEC/EN 60068-2-30) % 10–95
Air pressure (in operation) hPa 795–1080
Vibration resistance Frequency 5–9 Hz; 3.5 mm amplitude
9–150 Hz; 1.0g constant acceleration
Mechanical shock resistance 15g/11 ms
Overvoltage category II
Pollution degree 2
Degree of protection IP20
Rated insulation voltage (U
i
)V500
Emitted interference EN 61000-6-4
Interference immunity EN 61000-6-2
Backup time At least 72 hours
Weight kg 0.15
Electromagnetic Compatibility (EMC) Refer to Page V7-T4-49
Connections
X1 connector
Connector type Spring-loaded terminal block, 20 pole, B2L 3.5
Terminal capacity (solid) mm
2
0.5–1
X2/X3 connector
Connector type Spring-loaded terminal block, 10-pole, BLZF 3.5/180 or
BLI/O 3.5/10F with LEDs
Terminal capacity (solid) mm² 0.5–1
Power Supply
Supply failure bridging
Duration of power failure ms 10
Repetition rate s 1
Input voltage Vdc 24
Permissible range Vdc 20.4 – 28.8
Input power W Max.1.68
Input current mA 70
Ripple %
<
5
Overvoltage protection Yes
Protection against polarity reversal Yes
Inrush current x I
n
Max. 1A
Output voltage for signal modules
Max. field current (I
L
)A2
Digital Inputs
Number X2: 9 with plug BLI/O 3.5/10F or 10 with plug BLZF 3.5/
180 X3: 8 (can also be used as outputs)
Rated voltage (U
e
) Vdc 24
At state “0” (U
e
) Vdc <5
At state “1” (U
e
) Vdc >15
Rated operational current
At state “1” (I
e
)mA3.3
Delay time
X2: DI0–DI3 µs 20
X2: DI4–DI9 µs 250
X2: DX0–DX7 ms 20
Potential isolation No