Rockwell Automation 440R MSR17T Minotaur Safety Relay User Manual

Minotaur msr17t safety relays

General
The safety relay by itself can not provide safety. The
safety relay requires proper component application
and maintenance. The application must anticipate
failures by using system safety risk assessment. This
product must be installed and maintained in
accordance with the manufacturer’s instructions as
well as applicable standards.

MINOTAUR MSR17T SAFETY RELAYS

Mounting
The units must be mounted on a 35 mm DIN rail.

Applications: E-Stop, Gate Interlock, Expanders
and Auxiliary Relays, Automatic Start

E-Stop (Fig. 1)
a) Use an E-Stop button conforming to EN 418. It must have (2)
Normally Closed (N.C.) contact blocks. The contact blocks
must conform to EN 60947-5-1 positive-opening operation.
b) Use a start/reset momentary pushbutton with (1) Normally
Open (N.O.) contact block.

INSTRUCTION SHEET

ATTENTION:

The auxiliary terminals are NOT monitored
and must not be used as safety outputs. These
may be used for data and signaling.

ATTENTION: To prevent electrical shocks, disconnect power
source before servicing.

Drg No: 23963 / Issue No: 1 (Ref. 40063-239-01 (A))

Attaching an Expander (Fig. 3)
The expander can be used with E-Stop and Gate Interlock Control.

Attaching Auxiliary Relays (Fig. 4)
The auxiliary relays must be of the "positively-guided /
Direct Drive

" style conforming to EN 50205. The

auxiliary relays may be monitored by connecting
N.C. contacts in series to the reset circuit.

Protection of Safety Circuits.
To avoid contact welding, a fuse (5A quick or 1.6A
slow) must be connected externally.

ATTENTION:
Unexpected/unintended start-up may occur
after power supply interruption.
Autostart is not allowed for E-Stops per
EN 292-2, 954-1, 60204-1 and 418.

LEDs: Run & Fault Conditions (Fig. 1-4)

Automatic Start

Single Channel E-Stop (Fig. 6)

Fig. 6

Gate Interlock (Fig. 2)

Construction
The relay has (4) groups of terminals:
1. Power Terminals:
(+B1 -B2) for 24V DC
2. Input Terminals:
The E-Stop and Gate interlock operator: Ch 1 (S10 &
S11), Ch 2 (S21 & B2) (Fig. 1, 2)
Start button: S10, S33 (Fig. 1, 2)
*3. Safety Output Terminals:
13-14, 23-24
These are monitored outputs. These outputs are
voltage free.
**4. Auxiliary Terminals:
33-34 (K1 Aux.), 43-44 (K2 Aux.)

Wiring:
Use 0,2-2,5 mm

(24-14 AWG) Cu only. Typical

screwdriver needed is a flat blade 3 mm (.125 in.) wide.
Tighten screws to 0.5-0.8 Nm (5-7 lb.in.).

Fig. 2

Fig. 1

MSR17T

Fig. 3

MSR17T

MSR19E

Fig. 5

MSR17T

Fig. 4

MSR17T

IMPORTANT: Save these instructions for future use.

Refer to
Guardmaster catalogue

CONDITION

ACTION

proper
running
conditions

channel 1
contacts
may be open

channel 2
contacts
may be open

start/reset actuator
contacts may be
welded

safety
contacts
may be
welded

input short
or no power

input
circuit is
open

channel 1
contacts
may be
welded

channel 2
contacts
may be
welded

none

replace
channel 1
contact
block

replace
channel 2
contact
block

replace reset
contacts

replace
safety
relay

waiting for
start/reset signal
expander or aux.
contacts may be
welded

replace expander
or aux. relay

after clearing
short, power
must be off 20 sec.
to reset fuse

reset
E-stop or
gate

replace
channel 1
contact
block

replace
channel 2
contact
block

STOP ACTUATED

STOP RESET

POWER LED

CH 1 LED

CH 2 LED

K1 LED

K2 LED

Refer to
Guardmaster catalogue

Maintenance
The relay and its application must be inspected
periodically based on environmental and
operating conditions. Causes of contamination
must be eliminated. Worn and broken assemblies
must be replaced. Fasteners must be securely
re-tightened. Unit has no customer serviceable
parts. Fault conditions must be corrected before
restoring power. After maintenance, test the
control system under controlled conditions.