Page 382 - EPR Catalog 2015

Logic relays
Technical data

Data at Ta = 25 °C and rated values, if nothing else indicated.

Type CL-LDT...

Output circuit - Transistor outputs

Number 4

Rated operational voltage Ue 24 V DC

Operational voltage range 20.4-28.8 V DC

Residual ripple -

Supply current on „0“ signal typ. 18 mA / max. 32 mA

on „1“ signal typ. 24 mA / max. 44 mA

Reverse voltage protection yes (Attention: If supply voltage is reversed,

applying voltage at the outputs, causes a short circuit.)

Electrical isolation from voltage supply yes

from the inputs yes

from PC interface, memory module, yes

CL-NET, CL-LINK

Rated operational current Ie on„1“ signal DC max. 0.5 A

Lamp load without Rv 5 W (Q1-Q4)

Residual current on „0“ signal per channel < 0.1 mA

Max. output voltage on „0“ signal at external load < 10 M⏲ 2.5 V
on „1“ signal at Ie = 0.5 A U = Ue - 1 V
6

Short-circuit protection thermal (Q1-Q4), (analysis results from diagnosis input I16)

Short-circuit tripping current for Ra ͨ 10 m⏲ 0.7 A ͨ Ie ͨ 2 A per output

Total short-circuit current 8A

Peak short-circuit current 16 A

Thermal tripping yes

Max. switching frequency with constant resistive load RL < 100 k⏲ (depending on 40.000 switching cycles/h
active channels and their load)

Parallel connection of outputs with resistive load, inductive load with external group 1: Q1-Q4

suppressor, combination within one group

number of outputs max. 4

max. total current 2 A (Attention! Outputs must be actuated simultaneously

and for the same length of time.)

Indication of operational states of the outputs LCD-Display (if existing)

Inductive load1) without external suppressor

T0.95 =1m s , utilization factor 0.25 g
R= 48 ⏲, duty time 100 %

L = 16 mH max. switching frequency f = 0,5 Hz 1500 switching cycles

(max. duty time = 50 %)

DC13, utilization factor 0.25 g

T0.95 = 72 ms, duty time 100 %
R= 48 ⏲,
max. switching frequency f = 0,5 Hz 1500 switching cycles
L = 1.15 H (max. duty time = 50 %)

T0.95 = 15 ms, utilization factor 0.25 g
R= 48 ⏲, duty time 100 %

L = 0.24 H max. switching frequency f = 0,5 Hz 1500 switching cycles

(max. duty time = 50 %)

Inductive load1) with external suppressor

demand factor 1 g

duty time 100 %

max. switching frequency max. duty time depends on suppressor

1) For inductive loading, without external suppression of the transistor outputs, the following applies:

T0.95 = time in ms, until 95 % of the steady-state current is achieved. T0.95 3 × T0.65 = 3 × L/R.

Data transfer rate in the CL-NET network: bus lengths of 40 m and over only attainable with cables with additional cross-section and connection adapter.

6/23 ABB | Catalog Electronic Products and Relays 2015 | 2CDC 110 004 C02010