Tension Electronics PFEA111/112, User Manual
Section 2.8 Connecting Optional Units
3BSE029380R0101 Rev C 2-13
2.8 Connecting Optional Units
2.8.1 Insulation Amplifier PXUB 201 (only for the IP 20-version)
Insulation amplifier PXUB 201 is used when galvanic insulation between input and output, or
between power supply and input/output, is required. See Section A.5.1 Insulation Amplifier
PXUB 201.
Insulation amplifier PXUB 201 is intended to be installed on a DIN-rail. The PXUB 201 is
connected by screw terminals.
PXUB 201 is normally supplied from the same +24 V DC supply that supplies the tension
electronics.
If PXUB 201 is mounted close to the terminal group, it is not necessary for the cable between
the tension electronics and PXUB 201 to be screened.
Figure 2-12. Typical Connection of Insulation Amplifier PXUB 201
2.8.2 Power Supply Unit SD83x
If no 24 V is available, the power supply units SD 831, SD 832 and SD 833 can be used as
power supply for the IP 20-versions.
The power supply unit is intended to be installed on a DIN-rail.
The main supply voltage for all the three power supply units are:
• 115 V AC (90 - 132 V), 100 V -10% to 120 V + 10%
• 230 V AC (180 - 264 V), 200 V -10% to 240 V + 10%
Table 2-3. Number of PFEA111/112 that can be supplied
Power Supply Unit PFEA111 PFEA112
SD 831 (3 A) 6 6
SD 832 (5 A) 12 12
SD 833 (10 A) 24 24
A+B Voltage
0 V
X1:1
8
7
4
3
PXUB 201
+
5
6
X1:2
0 V
+24 V
X1
PFEA111/112
–
+
+
–
–
11
12
Output
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