Allen-Bradley MSR127 User manual

Installation Instructions
Original Instructions
MSR127 Minotaur Monitoring Safety Relays
Catalog Number 440R-N23124, 440R-N23125, 440R-N23126, 440R-N23127, 440R-N23128, 440R-N23129, 440R-N23129M, 440R-N23130,
440RN23131, 440R-N23132, 440R-N23132S, 440R-N23133, 440R-N23134, 440R-N23135, 440R-N23135M, 440R-N23135S, 440R-N23213
Summary of Changes
This publication contains the following new or updated information. This list
includes substantive updates only and is not intended to reflect all changes.
Translated versions are not always available for each revision.
Safety
This device is intended to be part of the safety-related control system of a
machine.
Safety Notes
Before installation, a risk assessment must be performed to determine whether
the specifications of this device are suitable for all foreseeable operational and
environmental characteristics of the machine to which it is to be fitted. At regular
intervals during the life of the machine, check whether the characteristics
foreseen remain valid.
Rockwell Automation cannot accept responsibility for failure of this device if the
procedures given in these instructions are not followed or if it is used outside the
recommended specifications in these instructions.
Repair
If there is any malfunction or damage, do not attempt to repair. The unit must be
replaced before machine operation is allowed.
Declaration of Conformity
Rockwell Automation declares that all MSR127 safety relays are in
conformity with Directives 2014/30/EU, 2006/42/EC, 2011/65/EU as
specified in the Declaration of Conformity available from
rok.auto/certifications.
Functional Description
The unit is enabled once supply is powered up and the safety circuits are closed.
The PWR status indicator is on.
A valid reset operation activates the safety outputs. The CH1 and CH2 status
indicators of the output are lit. At demand of the safety function and if any fault,
the safety outputs are de-energized within the specified response time.
Fault Detection
If a fault occurs, the internal relay circuit forces the safety outputs off. One or both
output status indicators may be off. The PWR indicator may be flashing. Remove
the fault and cycle the safety input to re-enable the device. Cycling power to the
safety relay can also clear the fault condition.
Diagnostics
Auxiliary (N.C.) outputs 41…42 monitor the safety output state.
Topic Page
Summary of Changes 1
Safety 1
Declaration of Conformity 1
Functional Description 1
Diagnostics 1
Safety Input 2
Reset 2
Wiring Examples 2
Circuit Diagram 2
Approximate Dimensions 3
Installation 3
Safety Specification 3
Technical Specifications 3
Topic Page
Updated title of publication 1
Updated Declaration of Conformity section 1
Updated Positive Edge section 2
Updated Circuit Diagram section 2
Updated Safety Specification section 3
ATTENTION: Danger of serious injuries.
Misuse can result in malfunction.
• Only authorized and trained personnel must start up,
assemble, install, manipulate, or retrofit the device.
• Installation must be in accordance with these instructions.
• Do not defeat, tamper, remove, or bypass this unit.
IMPORTANT The safety inputs of these products are described as
normally closed (N.C.), that is, with the guard closed,
actuator in place (where relevant) and the machine able to
be started. Exposure to shock and/or vibration in excess
of what is stated in IEC 60068 part: 2-6/7 must be avoided.
Adherence to the recommended inspection and
maintenance instructions forms part of the warranty.
ATTENTION: MSR127 safety relays are not repairable.

2Rockwell Automation Publication 440R-IN079C-EN-P - May 2020
MSR127 Minotaur Monitoring Safety Relays Installation Instructions
Safety Input
The safety input can be single channel or dual channel. According to the wiring
inputs, cross-loop monitoring of the inputs is enabled or disabled. Crossloop
monitoring can be enabled for 2-channel safety inputs in 4wire connection
S11-S12, S21-S22. Cross-loop monitoring is disabled for single-channel inputs,
dual-channel inputs in 3-wire connection and 24V DC signals. With external 24V DC
signals, the negative pole must be connected to S21.
Reset
Reset modes — Unit is available with automatic/manual start (MSR127T/TP) and
manual monitored reset (MSR127R/RP).
A valid start/reset can only be operated if the feedback circuit is closed. Feedback
contacts of controlled actuators are connected in series with start/reset circuit
(S12-S34).
T - Automatic/manual Start
In automatic/manual start mode, the reset circuit S12-S34 is not monitored against
signal changes (no edge detection). The reset circuit can be closed before or after
the safety inputs are closed. Unit is active once the safety inputs are closed and
the reset circuit has been closed. If the safety inputs and reset circuit are
concurrently closed during powerup, unit is activated immediately.
R - Manual Monitored Reset
In manual monitored reset mode, a signal change of the reset circuit (S12-S34) is
required and monitored. The reset circuit must be closed after the safety inputs
are closed.
Positive Edge
Unit is active once the safety inputs are closed and then the reset circuit is closed.
Wiring Examples
Figure 1 - Dual-channel Safety Gates, Monitored Manual Reset,
Monitored Output
Figure 2 - Dual-channel Safety Gates, Auto Reset, Monitored Output
Circuit Diagram
S11 S52 S12
S21 S22
A1
A2
24V
DC
S11 S52 S12
S21 S22
S11 S52 S12
S21 S22
Max PLc: single-channel; N.C. Max PLd: dual-channel; 3-wire connection
Max PLe: dual-channel; 24V DC
signal
Max PLe: dual-channel; 4-wire connection,
cross faults require fault reset
S11 S52 S12
S21 S22
S11 S52 S12
S21 S22 S34
K1
K2
MSR127 MSR127.1
S11 S52 S10
S21 S22 S33
K1
K2
S11 S52 S12
S21 S22 S34
MSRxxxR
K1
K2
440R-xxxxM
Table 1 - Connections
Terminal Description
A1, A2 Power
S11, S12 (S10), S52, S21, S22 Safety input (N.C.)
S34 (S33) Monitoring feedback loop with Reset button
MSR127R, MSR127T, MSR127RP, MSR127TP
13, 14, 23, 24, 33, 34 Safety output (N.O.)
41, 42 Auxiliary output (N.C.)
MSR127.1T
13, 14, 23, 24 Safety output (N.O.)
33, 34, 43, 44 Auxiliary output (N.O.)
L1L2L3
S21 S22 S34 A2 14 24 34 42
A1 S11 S52 S12 13 23 33 41
K1 K2
K1
K2
Open
Closed
N
Reset
L1
M
max PLe, SIL3
MSR 127RP
A1 S11 S52 S10 13 23 33 43
S21 S22 S33 A2 14 24 34 44
Open
Closed
+24V
K1
K1
K2
K2
L1L2L3
M
MSR127.1T
max PLe, SIL3
Reset
A1 S11 S52 S12
(S10)
S34
(S33)
13 23 33 41
K2
K1
A2 S21 S22 14 24 34 42
…S34 13 23 33 43
14 24 34 44
MSR127/(MSR127.1) MSR127.1

Rockwell Automation Publication 440R-IN079C-EN-P - May 2020 3
MSR127 Minotaur Monitoring Safety Relays Installation Instructions
Approximate Dimensions
Figure 3 - Dimensions [mm (in.)]
Installation
1. Mount in enclosure (minimum rating of IP54).
2. To remove terminals (P versions only), insert a
screwdriver and slowly move as shown.
Safety Specification
All MSR127 safety relays can be used in safety circuits according to EN ISO 13849-1
and IEC 61508/IEC 62061.
Specifications are applicable only if the safety function is demanded at least once
within 6 months. All diagnostic tests are conducted at least before next demand.
The mission time (TM) for the proof test interval (PTI) is adopted.
Components failure rates according to SN29500.
Technical Specifications
Table 2 - Status Indicators
Status Indicator Description
PWR Green = Unit is powered.
Flashing green = Cross-loop faults.
CH1 Green = Safety output channel 1 is activated.
CH2 Green = Safety output channel 2 is activated.
Attribute Value
TM (PTI) [a] 20
dop [d] / hop [h] (1)
(1) Operation time (day, hour)
365 / 24
tcycle [h]/[s] (2)
(2) Cycle time (hour, second)
8 / 28,800
Table 3 - Safety Specification
EN ISO 13849-1 IEC 61508/IEC 62061
Performance Level PLe Safety integrity level SIL 3
MTTFd [a] 378 PFH [1/h] 1.94E-09
Cat. 4 HFT 1
DC avg. 99% DC 99%
114.5 (4.5)22.5
(0.88)
1
3
23
33
41
(43)
)
A1 S11 S52 S12
(S10)
PWR
CH1
CH2
(S33)
S21 S22 S34 A2
(44)
14
2
4
3
4 4
2
(3.89)
99
800F E-Stop 440R Safety Relay 100S Contactor
Sensor
Contact
Sensor
Contact
Channel 1
Channel 2
Actuator 1
Actuator 2
Attribute Value
Power supply 24V AC/DC, 115V AC, 230V AC
0.85…1.1 x rated voltage 50/60 Hz
Power consumption 2 W
Safety inputs 1 N.C., 2 N.C., 2 PNP light curtain
Input simultaneity Infinite
Allowable input resistance, max 110 Ω
Reset Manual monitored and automatic/manual
Outputs MSR127RP/TP 3 N.O. safety, 1 N.C. auxiliary
MSR127.1T 2 N.O. safety, 2 N.O. auxiliary
Output rating
UL: B300
5 A/240V AC
AC-15: 5 A/250V AC
DC-13: 3 A/24V DC
Fuses output (external) 6 A slow blow or 10 A quick blow
Switched current/voltage, min 10 mA/10 V
Contact material AgSnO2+ 0.5µAu
Electrical life (operations)
100,000 (220V AC/4 A/880VA cosφ= 0.35)
500,000 (220V AC/1.7 A/375VA cosφ= 0.6)
1,000,000 (30V DC/2 A/60 W)
2,000,000 (10V DC/0.01 A/0.1 W)
Mechanical life 10,000,000 cycles
Power on delay 1 s
Response time 15 ms
Recovery time 100 ms
Impulse withstand voltage 2500V
Pollution degree 2
Installation group Overvoltage category III, VDE 0110-1
Operating temperature -5…+55 °C (23…131 °F)
Relative humidity 90%
Enclosure protection IP40 (NEMA 1)
Terminal protection IP20
Wiring Use copper that withstands 60/75 °C (140/167 °F)
Conductor size 0.2…2.5 mm² (24…12 AWG)
Torque settings - terminal screws 0.6…0.8 N•m (5…7 lb•in)
Case material Polyamide PA 6.6
Mounting 35 mm (1.4 in.) DIN rail in IP54 (min) enclosure
Weight 24V AC/DC: 210 g (0.463 lb)
115V AC or 230V AC: 260 g (0.573 lb)
Vibration 10…55 Hz, 0.35 mm (0.01 in.)

Publication 440R-IN079C-EN-P - May 2020 | Supersedes Publication 440R-IN079B-EN-P-March 2020
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