Rockwell Automation Allen-Bradley Guardmaster 440R-S35011, User Manual

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Rockwell Automation Publication 440R-UM014D-EN-P - December 2019 15
Power, Ground, and Wire Chapter 3
Depending on the model, the primary supply can be 24V DC, 115V AC or
230V AC. When an AC supply is used, both 50 Hz and 60 Hz are acceptable.
When powering with 24V DC in the European Union, the DC supply must
have a Protective Extra-Low Voltage (PELV) rating. When powering with 24V
DC in the United States, the DC supply must have both a PELV rating as well
as an NEC Class 2 rating. Many of the Bulletin 1606 power supplies are PELV
and Class 2 compliant.
Figure 6 shows the power supply connections. Power to A1 is required to
operate the MSR55P safety relay. Power to A3 is only necessary if the solid-
state auxiliary status signals (ON and ERR) are used.
Figure 6 - Power Supply Connections
Motor Winding Inputs
The motor windings are connected to terminals L1, L2, and L3. The
connections must be made directly at the motor with no electrical devices (like
transformers and contactors) between the motor and the MSR55P safety relay.
Figure 7 shows wiring for a single-phase, DC, and 3-phase motor.
Figure 7 - Motor Connections
24V DC
or L1 115V AC
or L1 230V AC
24V Com
or L2 (Neutral)
0 V DC
12...30V DC
A2
X1 X2
L3 L2 L1
X3
34 44
A1 A3 33 23 11
24 12 ON ERR A4 54
43 53
IMPORTANT The three connections create two safety monitoring channels. L1 is the
common to the two channels, which are L2 and L3.
L1 L2 L3
M
K1
K2
A2
X1 X2
L3 L2 L1
X3
34 44
A1 A3 33 23 11
24 12 ON ERR A4 54
43 53
3-phase
L1 N
M
K1
K2
A2
X1 X2
L3 L2 L1
X3
34 44
A1 A3 33 23 11
24 12 ON ERR A4 54
43 53
Single-phase and DC Motor