EL1252, EL1252-0010, EL1252-0050, EL1254 - Technical data

digital inputs

2

4

Nominal voltage of the inputs

24 V_DC (-15%/+20%)

5 V_DC (-15%/+20%)

24 V_DC (-15%/+20%)

Signal voltage "0"

-3 V … +5 V
(based on EN 61131-2, type 3)

< 0.8 V

-3 V … +5 V
(based on EN 61131-2, type 3)

Signal voltage "1"

+11 V … +30 V
(based on EN 61131-2, type 3)

>2.4 V

+11 V … +30 V
(based on EN 61131-2, type 3)

Input current

typ. 3 mA
(based on EN 61131-2, type 3)

typ. 50 µA

typ. 3 mA
(based on EN 61131-2, type 3)

Input filter

1 µs

10 µs

1 µs

Input delay T_ON/T_OFF

< 1 µs

Time stamp resolution

1 ns

Time stamp accuracy in the terminal

10 ns (+ input delay)

Distributed Clocks (DC) accuracy

<< 1 µs

Power supply for the electronics

via the E-Bus

Current consumption from the E-bus

typ. 110 mA

typ. 90 mA

typ. 110 mA

Electrical isolation

500 V (E-bus/field voltage)

Bit width in the process image

2 input bits + 2 time stamps

4 input bits + 8 time stamps

Configuration

no address or configuration settings required

Weight

approx. 55 g

Permissible ambient temperature range during operation

-25°C ... +60°C (extended temperature range)

0°C ... +55°C

Permissible ambient temperature range during storage

-40°C ... +85°C

-25°C ... +85°C

Permissible relative humidity

95%, no condensation

Dimensions (W x H x D)

approx. 15 mm x 100 mm x 70 mm (width aligned: 12 mm)

Mounting

on 35 mm mounting rail conforms to EN 60715

Vibration/shock resistance

conforms to EN 60068-2-6 / EN 60068-2-27,
see also installation instructions for enhanced mechanical load capacity

conforms to EN 60068-2-6 / EN 60068-2-27

EMC immunity/emission

conforms to EN 61000-6-2 / EN 61000-6-4

Protection class

IP20

Installation position

variable

Marking / Approval^*)

CE, EAC, UKCA
ATEX, IECEx
cULus

CE, EAC, UKCA
ATEX, IECEx
cULus

CE, EAC, UKCA