MSA SUPREMA Touch, Installation & Maintenance Instructions Manual, Page: 208 / 309

MSA AUER
MSA
Installation
SUPREMATouch 207
US
Fig. 149 MIB Module, supply voltage terminals
When an external power supply or a battery is used, the supply voltages must be operated
via an appropriate EMC filter. The requirements of the EMC and Low Voltage Directive must
be complied with.
EXT Connection (External Power Supply Unit, 24 VDC)
-
Connection for external power to supply all assemblies of a rack.
-
Required when a redundant power supply is to be provided or when the internal rack power
supply unit is unable to supply all the sensors.
-
Maximum supply current of 20 A for one rack.
INT Connection (Rack Power Supply Unit, 24 VDC, 150 VA)
-
Connection for an internal rack power supply or an external power supply.
-
Power supplied to all the rack units and sensors.
-
If the rack power supply cannot supply sufficient current, the sensors, modules or relays must
be supplied by external units.
-
The internal rack power supply can be omitted if, because of a high power requirement or a
redundant design, the power is supplied by an external power supply via the INT connection
terminals.
-
Maximum supply current of 20 A.
BAT Connection (Continuous Battery Power Supply)
-
Continuous battery power supply for all units in a rack (21 ... 28 VDC).
-
If the internal and/or the external power supply unit fails, the system is supplied from here
-
Maximum supply current, 20 A.
Connection of the Internal Rack Power Supply Unit (MSP Module)
The system can be supplied by the power supply built into the rack. The power supply has a wide-
range input (85 ... 265 VAC, 47 ... 63 Hz or 120 ...330 VDC).
BAT
X23
34
5
6
7
89
INT
EXT
12
10
11
1
2
ñ +
X22
ñ +
X21
ñ +