E-Stop Safety Modules with Adjustable Delay – Models ES-TN-14H5/-14H6
24V dc
Reset
Switch**
(jumper for Auto Reset -
see Warning on page 9)*
MSC-Monitor Contacts
(jumper if no feedback
contacts are monitored)*
MSC-Monitor Contacts
(jumper if 1 channel feedback
is selected or no feedback)*
Emergency Stop Switch
Cancel Delay Input
*(Jumper on
S21-S22
for 1-channel
E-Stop)
(See WARNING)
L2
A2
MSC1
MSC2
Machine Master
Stop Control
Elements
Immediate
Immediate
Immediate
Delayed
Delayed
Delayed
Non-safety Auxiliary
Monitor Contacts
K1
A
4A max.
4A max.
4A max.
K2
A
K1
B
K2
B
K3
A
K4
A
MSC3
A1
4A max.
K3
B
K1
E
K2
E
MSC1
MSC3
MSC2
MSC4
K4
E
K3
E
K4
B
MSC4
91 92
S21
S11
Y1
S12
S22
L1
dc common
+V
ES-TN-14H5
ES-TN-14H6
Y2
MSC1 MSC3
S33
X1
X2
01 02
X3
X4
X5
X6
***
***
***
***
14
13
23 24
Immediate
4A max.
K1
C
K2
C
33 34
Immediate
4A max.
K1
D
K2
D
43
44
Delayed
4A max.
K3
C
K4
C
78
Delayed
4A max.
K3
D
K4
D
88
57
67
77
87
58
68
Machine
Control
Circuits
WARNING . . .
Wiring of Arc Suppressors
If arc suppressors are
used, they MUST be installed as
shown across the actuator coil of
the Master Stop Control elements
(MSC1 to MSC4). NEVER install
suppressors directly across the
output contacts of the E-Stop
Safety Module. It is possible for
suppressors to fail as a short circuit.
If installed directly across the output
contacts of the Safety Module, a
short-circuited suppressor will
create an unsafe condition which
could result in serious injury or
death.
Figure 3. E-Stop Safety Modules ES-TN-14H5 and -14H6 hookups
* See page 11 for DIP-switch configuration.
** The Safety Module can not be reset until the delay output
times out and switches, or until the Cancel Delay Input is
exercised. Attempting to reset the module (Manual Reset
mode) or re-arming the E-stop button (Auto Reset mode)
before the time-out occurs will result in a lockout (see
page 14 for instructions for clearing lockouts).
*** Arc suppressors (see WARNING).
WARNING . . .
Interfacing MSCs
NEVER wire an
intermediate device (e.g., PLC, PES,
PC) between E-Stop Safety Module
outputs and the Master Stop Control
Element it switches, in such a manner
that:
• In the event of a failure there is a loss
of the safety stop command, or,
• The safety function can be
suspended, overridden, or defeated,
unless accomplished with the same
or greater degree of safety.
Whenever forced-guided, mechanically
linked relays are added as intermediate
switching devices, a normally closed
forced-guided monitor contact from
each relay must be added to the
series feedback loop between Safety
Module terminals X3 and X4 or X5
and X6.
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