MACX MCR-EX-SL-RPSSI-I(-SP)
103568_en_01 PHOENIX CONTACT 7
5.4 Mounting
Figure 4 Mounting and removal
– Mount the module on a 35 mm DIN rail according to
EN 60715.
– When using the DIN rail connector, first place it into the
DIN rail (see A – C, Figure 4). It is used to bridge the
power supply.
– Please also ensure you observe the direction of the
module and DIN rail connector when snapping into
position:
Snap-on foot below (2) and connector left (1).
– Install the module in a suitable housing to meet the
requirements for the protection class.
– Before startup, check that the repeater power supply is
operating and wired correctly, especially with regard to
the wiring and labeling of the intrinsically safe circuits.
5.5 Connecting the cables
– Pluggable screw terminal blocks (on
MACX MCR-EX-SL-RPSSI-I); litz wires provided with
ferrules.
– Pluggable spring-cage terminal blocks (on
MACX MCR-EX-SL-RPSSI-I-SP); litz wires provided
with ferrules.
– Lay intrinsically safe and non-intrinsically safe cables
separately.
Permissible cable cross-section: 0.2 mm
2
to 2.5 mm
2
.
– Screw connection:
– Insert the wire into the corresponding connection
terminal block.
– Use a screwdriver to tighten the screw in the
opening above the connection terminal block.
– Spring-cage connection:
– Insert a screwdriver in the opening above the
connection terminal block.
– Insert the wire into the corresponding connection
terminal block.
5.6 Power supply
The modules can be powered via the connection terminal
blocks 1.1 (+24 V) and 1.2 (GND) or via the DIN rail
connector (ME 6.2 TBUS-..., order no. 2869728).
Depending on the number of modules to be powered, the
voltage is either fed via the MACX MCR-EX-SL-RPSSI-I or
the power and error evaluation module
MACX MCR-PTB(-SP) on the DIN rail connector.
Supply via the module
Where the total current consumption of the aligned modules
does not exceed 400 mA, the power can be fed in via a
module's connection terminal blocks. We recommend
connecting a 630-mA-fuse (normal-blow or slow-blow)
upstream.
Supply via the power and error evaluation module
MACX MCR-PTB(-SP)
The supply voltage is fed in via the module
MACX MCR-PTB(-SP) on the DIN rail connectors. The
supply voltage can be provided as either simple or
redundant.
The module MACX MCR-PTB(-SP) has integrated error
evaluation. An auxiliary voltage failure or fuse error is
registered to a relay contact and displayed via a flashing
LED.
5.7 Level shift
WARNING: Explosion hazard
If the device has been used in
non-intrinsically safe circuits, it must not be
used again in intrinsically safe circuits.
Clearly label the module as being non-intrinsically
safe.
A
B
C
1
2
NOTE: Never connect the supply voltage directly
to the DIN rail connector.
It is not permitted to draw power from the DIN rail
connector or from individual modules.
NOTE: A level shift between input and output is
not planned. 4 ... 20 mA input signals, therefore,
become 4 ... 20 mA output signals.
In the same way, active input signals from
0 ... 20 mA become electrically isolated
0...20mA output signals.
