Saia-Burgess Controls AG
Manual for PCD2.W745 and PCD3.W745
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Document 26-796 E
NG06 │ 2018-10-12
Hardware
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1
Technical Data
General specifications
PCD2.W745
Temperature module, supports thermocouples type J, K and
RTD’s type Pt100, Pt1000, Ni100, Ni1000
→ Suitable for PCD1 & PCD2 systems
PCD3.W745
Temperature module, supports thermocouples type J, K and
RTD’s type Pt100, Pt1000, Ni100, Ni1000
→ Suitable for PCD3 systems
Ambient temperature
Operation:
0...+50°C without forced ventilation
Storage:
-25...+85°C
Power supply:
No external power supply necessary
Internal power consumption
from +5 V bus:
200 mA
Wire gauge:
max. 0.5 mm² (AWG 20)
Wire Stripping:
Remove 10 mm of isolation
Internal reference junction (internal cold junction)
The built-in Reference Junction is used when thermocouples are directly connected
to the module.
Built-in Temperature sensor
Operating temperature range:
0…55°C
Resolution:
0.1°C
Measuring error at 25°C:
0.8°C
Drift over operating Temperature Range (0…55°C):
0.05°C/°C
Stabilization time:
5 min.
The CPUs PCD1/2/3 and the basic units PCD3 provide the following internal supply:
Type
+5 V
V+
PCD3.Mxxxx
600 mA
100 mA
PCD3.C200
1000 mA
100 mA
PCD3.T76x
650 mA
100 mA
PCD2.M1xx
1600 mA
200 mA
PCD2.M48x
2000 mA
200 mA
PCD1.M1xx
750 mA
100 mA
Users of PCDx.W745 modules are urged to check the overall current consumption of
all modules in a PCD1/2/3 and in any C100 or T76x expansion units to ensure that
this maximum is not exceeded.
When working with an expansion unit and up to 8 W745 modules, it is better to place
the PCDx.W745 modules in the base unit and to plug “normal” I/O modules into the
expansion unit. This will eliminate any influences such as a possible voltage drop
over the connecting cable from the expansion unit to the base unit.
