Hardware Manual for the PCD2.M5 Series│Document 26/856; Version EN 12│2014-07-24
Saia-Burgess Controls AG
Digital output modules
Input/output (I/O) modules
6-30
6
6.5.1 PCD2.A200, 4 relays with make contacts, with contact protection
Application
The module contains 4 relays with normally-open contacts for direct or alternating
current up to 2 A, 250 V
AC
. The contacts are protected by a varistor and an RC
element. The module is especially suited wherever perfectly isolated AC switching
circuits with infrequent switching have to be controlled.
Technical data
Number of outputs:
4, electrically isolated make contacts
Type of relay (typical):
RE 030024, SCHRACK
Switching capacity:
(contact lifetime)
2 A, 250 V
AC
AC1
0.7 x 10
6
operations
1 A, 250 V
AC
AC11
1.0 x 10
6
operations
2 A, 50 V
DC
DC1
0.3 x 10
6
operations
3)
1 A, 24 V
DC
DC11
0.1 x 10
6
operations
1)3)
Relay coil supply:
2)
nominal 24 V
DC
smoothed or pulsed, 8 mA per relay
coil
Voltage tolerance, dependent on
ambient temperature:
20 °C: 17.0
…
35 V
DC
30 °C: 19.5
…
35 V
DC
40 °C: 20.5
…
32 V
DC
50 °C: 21.5
...
30 V
DC
Output delay:
typically 5 ms at 24 V
DC
Resistance to interference:
acc. to IEC 801-4
4 kV under direct coupling
2 kV under capacitive coupling (whole trunk group)
Internal current consumption:
(from +5 V bus)
1
…
15 mA
typ. 10 mA
Internal current consumption:
(from V+ bus)
0 mA
External current consumption:
max. 32 mA
Terminals:
Pluggable 10-pole screw terminal block (4 405 4847 0),
for wires up to 1.5 mm²
1)
With external protective diode
2)
With reverse voltage protection
3)
These ratings are not UL-listed
The Annex, Section A.4 "Relay contacts" contains measurement details and sug-
gested wiring for the relay contacts. For safe switching and a long service life, these
figures must be observed.
