Environmental conditions

Table 28: Process and supply voltages
Parameter		Value
24 V DC
	Voltage	24 V (-15 %, +20 %)
	Protection against reverse polarity	Yes
100 V AC...240 V AC wide-range supply
	Voltage	100 V ... 240 V (-15 %, +10 %)
	Frequency	50/60 Hz (-6 %, +4 %)
Allowed interruptions of power supply, according to EN 61131-2
	DC supply	Interruption < 10 ms, time between 2 interruptions > 1 s, PS2
	AC supply	Interruption < 0.5 periods, time between 2 interruptions > 1 s

NOTICE

Risk of damaging the PLC due to improper voltage levels!

Never exceed the maximum tolerance values for process and supply voltages.
Never fall below the minimum tolerance values for process and supply voltages.

Observe the system data ⮫ “System data AC500” and the technical data of the module used.

NOTICE

Improper voltage level or frequency range which cause damage of AC inputs:

AC voltage above 264 V.
Frequency below 47 Hz or above 62.4 Hz.

NOTICE

Improper connection leads cause overtemperature on terminals.

PLC modules may be destroyed by using wrong cable type, wire size and cable temperature classification.

Parameter		Value
Temperature
	Operating	-40 °C ... +70 °C -40 °C ... 0 °C: Due to the LCD technology, the display might respond very slowly. -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 maximum 2 communication modules per terminal base. 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 .... 5000 m (1080 hPa ... 620 hPa) > 2000 m (< 795 hPa): Maximum operating temperature must be reducted by 10 K for each 1000 m exceeding 2000 m. I/O module relay contacts must be operated with 24 V nominal only.
Immunity to corrosive gases		Yes, according to: ISA S71.04.1985 Harsh group A, G3/GX IEC60068-2-60 Method 4 with the following concentrations: H2S 100 ± 10ppb NO2 1250 ± 20ppb CL2 100 ± 10ppb SO2 300 ± 20ppb
Immunity to salt mist		Yes, horizontal mounting only, according to IEC 60068-2-52 severity level: 1

NOTICE

Risk of corrosion!

Unused connectors and slots may corrode if XC devices are used in salt-mist environments.

Protect unused connectors and slots with TA535 protective caps for XC devices⮫ “TA535 - Protective caps for XC devices”.

NOTICE

Risk of malfunctions!

Unused slots for communication modules are not protected against accidental physical contact.

Unused slots for communication modules must be covered with dummy communication modules to achieve IP20 rating⮫ “TA524 - Dummy communication module”.
I/O bus connectors must not be touched during operation.