Banner ES-TN-1H Series Manual page 7

E-Stop Safety Modules with Fixed Delay –
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.
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.
Figure 3. E-Stop Safety Modules ES-TN-1H.. hookups
Banner Engineering Corp. Minneapolis, MN U.S.A.
•
www.bannerengineering.com • Tel: 763.544.3164
+V
Emergency Stop Switch
*(Jumper on
S21-S22
for 1-channel
E-Stop)
(See WARNING)
Cancel Delay Input
L1
Machine
Control
Circuits
Non-safety Auxiliary
Monitor Contacts
* 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).
dc common
24V dc
ES-TN-1H1
A2
A1
ES-TN-1H2
ES-TN-1H3
X1
ES-TN-1H4
S11
ES-TN-1H7
X2
ES-TN-1H8
S21
MSC1
ES-TN-1H9
X3
ES-TN-1H10
S22
ES-TN-1H11
MSC3
X4
ES-TN-1H12
S12 MSC2
X5
Y1
MSC4
X6
Y2
Machine Master
Stop Control
4A max.
Elements
K1
K2
A
A
13 14 MSC1
Immediate
***
4A max.
K1
K2
B
B
23 24 MSC2
Immediate
***
4A max.
K3
K4
A
A
MSC3
37 38
Delayed
***
4A max.
K3
K4
B
B
MSC4
47 48
Delayed
***
K1
C
51 52
K2
C
Immediate
K3
C
61 62
K4
C
Delayed
Models ES-TN-1H..
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)*
L2
7
P/N 61061 rev. A