Page 195 - PLC Automation

AC500 -XC – PLC OPER ATING IN EXTREME CONDITIONS 193

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AC500-XC
System data

Environmental Conditions
Process and supply voltages
24 V DC Voltage 24 V (-15 %, +20 %)
Protection against yes
reverse polarity
Allowed interruptions of DC supply Interruption < 10 ms, time between 2 interruptions > 1 s, PS2
power supply AC supply Interruption < 0.5 periods, time between 2 interruptions > 1 s
Important: Exceeding the maximum process and supply voltages could lead to unrecoverable damage of the system. The system could be destroyed. For the supply of the
modules, power supply units in accordance with PELV or SELV specifications must be used. The creepage distances and clearances meet the requirements of the overvoltage
category II, pollution degree 2.
Assembly position
Horizontal 
Vertical  (1)
(1) not in salt mist environment
Temperature
Operating -40 °C ... +70 °C
-40 °C ... -30 °C Proper start-up of system; technical data not guaranteed
-40 °C ... 0 °C Due to the LCD technology, the display might not be readable
-40 °C...+40 °C vertical mounting of modules possible, output load limited to 50 % per group
+60 °C ...+70 °C with the following deratings:
System is limited to max. 2 Communication Modules per Terminal Base
Applications certified for cULus up to 60 °C 05
Digital inputs: maximum number of simultaneously switched on input channels
limited to 75 % per group (e.g. 8 channels => 6 channels)
Digital outputs: output current maximum value (all channels together) limited to
75 % per group (e.g. 8 A => 6 A)
Analog outputs only if configured as voltage output: maximum total output
current per group is limited to 75 % (e.g. 40 mA => 30 mA)
Analog outputs only if configured as current output: maximum number of
simultaneously used output channels limited to 75 % per group
(e.g. 4 channels => 3 channels)
Storage / Transport -40 °C ... +85 °C
Humidity
Operating / Storage 100 % r. H. with condensation
Air pressure
Operating -1000 m .... 4000 m (1080 hPa ... 620 hPa)
Storage >2000 m (<795 hPa): max. operating temperature must be reduced by 10K per
1000 m (e.g. 70 °C to 60 °C)
Immunity to corrosive gases
Operating Yes, in accordance with:
ANSI/ISA-71.04:
Containment group A, G3 - Harsh / GX - Severe
IEC 60068-2-60:
Method 4
IEC 60721-3-3:
Class 3C2 / 3C3

Gases and concentrations:
Hydrogen sulfide (H 2S): (100 ± 5) ppb
Nitrogen dioxide (NO 2): (1250 ± 20) ppb
Chlorine (Cl 2): (100 ± 5) ppb
Sulfur dioxide (SO 2): (300 ± 20) ppb
Immunity to salt mist
Operating Yes, horizontal mounting only, in accordance with IEC 60068-2-52 severity level: 1
NOTICE!
Risk of corrosion!
Unused connectors and slots may corrode, if using XC devices in salt mist
environments.
Protect unused connectors and slots with TA535 protective caps for XC devices.