Saia-Burgess Controls AG
Manual
Manual PCD 1 / PCD 2 Series
│ Document 26
/
737 E
N22 │ 2013-11-26
5
Input/output (I/O) modules
5-32
Digital output modules, electrically isolated
5.5.1 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 × 10
6
operations
1 A, 250 V
AC
AC11
1.0 × 10
6
operations
2 A, 50 V
DC
DC1
0.3 × 10
6
operations
3)
1 A, 24 V
DC
DC11
0.1 × 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 bei 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
typically 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
In the appendix, Chapter A.4 relay contacts, are calculation data and wiring sug-
gestions for the relay contacts. These data should be absolutely considered for safe
switching and a long life span of the relays.
