Fine wire with ferrule with plastic collar (2×,
same cross-section)
≤ 0.5 mm
2
Fine wire with ferrules with or without collar
(1×)
0.25 mm
2
… 1.0 mm
2
For UL and CSA applications
26 AWG … 14 AWG
(use only copper wire (60/75 °C))
Table 7: Electrical data - operating data
Supply voltage U
V
24 V DC (16,8 V DC … 30 V DC) (safety extra-
low voltage)
1)
2)
Rated voltage
24 V DC
Residual ripple U
ss
2.4 V
Power consumption
≤ 2.5 W
Power-up delay after supply voltage applied
≤ 5 s
1)
The external voltage supply must be capable of bridging a brief power failure of 20 ms as specified in
IEC 60204-1. Suitable power supply units are available as accessories from SICK.
Protect supply voltage against short-circuit.
2)
For use according to the requirements of ANSI/UL 508, ANSI/UL 60947-5-1 and ANSI/UL 60947-1, volt‐
age supply U
V
must be protected with 4 A.
Table 8: Electrical data - inputs (I1, I2, S1)
Input voltage HIGH
24 V DC (11 V DC … 30 V DC)
Input voltage LOW
0 V DC (–3 V DC … 5 V DC)
Input capacity
≤ 15 nF
Input current
4 mA … 6 mA
Reset time
Manual
≤ 250 ms
Automatic
≤ 250 ms
Actuation time of reset button
140 ms ... 30 s
Minimum power-up delay
1)
80 ms
Minimum switch-off time
2)
5 ms
Test pulse width
≤ 1,000 µs
Test pulse rate
≤ 10 Hz
Length of cable (single)
≤ 100 m
1)
Time in which an input signal must have the HIGH status before the outputs switch.
2)
Time in which an input signal must have the LOW status before the outputs switch.
Table 9: Electrical data - test pulse output (R1)
Type of output
PNP semiconductor output, short-circuit pro‐
tected
Output voltage
(U
V
– 3 V) … U
V
Test pulse interval
40 ms
Test pulse width
2 ms
Length of cable (single)
≤ 100 m
Cable resistance
≤ 10 Ω
TECHNICAL DATA
10
8023925/2019-10-11 | SICK
O P E R A T I N G I N S T R U C T I O N S | ReLy OSSD3
25
Subject to change without notice
