E-Stop Safety Relay
– Model ES-TA-3D1
24V dc
Reset Switch
MSC1
Monitor
MSC2
Monitor
MSC3
Monitor
MSC4
Monitor
Master Stop
Control Elements
*Arc Suppressors
(See Warning)
NOTE:
Use jumper wires to make connections to any
unused emergency stop switch or monitor inputs.
Wire to simulate a closed contact.
L2
1
14
34
19
20
MSC1
MSC2
MSC3
MSC4
40
Internal
Redundant
Safety Relays
K1
K2
ES-TA-3D1
21
2
3
23
22
39
L1
4
5
25
24
6
7
27
26
8
9
29
28
11
10
31
30
13
12
33
15
35
32
16
36
17
37
18
38
Common
ES1
Emergency Stop Switch #1
a
c
b
d
a
c
b
d
a
c
b
d
a
c
b
d
ES2
Emergency Stop Switch #2
ES5
Emergency Stop Switch #5
c
a
c
a
d
b
d
b
ES6
Emergency Stop Switch #6
ES3
Emergency Stop Switch #3
ES4
Emergency Stop Switch #4
+
*
*
*
*
Machine
Control
Circuit
Figure 3. General hookup information for model ES-TA-3D1 Emergency Stop Monitoring Safety Relay
WARNING . . .
Arc Suppressors
If arc suppressors are used, they MUST be installed as shown across
the load of the master stop control elements (MSC1, MSC2, MSC3
and MSC4). NEVER install suppressors directly across the output
contacts of the ES-TA-3D1 safety relay. It is possible for suppressors to fail as a
short circuit. If installed directly across the output contacts of the safety relay, a
short-circuited suppressor will create an unsafe condition which could result in
serious injury or death.
!
WARNING . . .
Intermediate Devices
NEVER wire an intermediate device (for example, a programmable
logic controller - PLC), other than a captive contact (force-guided)
relay, between ES-TA-3D1 outputs and the master stop control
element it switches. To do so sacrifices the control reliability of the control-to-
machine interface, and creates an unsafe condition which could result in serious
injury or death. Whenever a force-guided relay is added as an intermediate
switching device, a normally closed, force-guided monitor contact of that relay
must be connected in series with the monitor contact of the master stop control
element it is switching. (Reference ANSI B11.1 – 1988, Appendix B4)
!
Device
Net
21
22
23
24
25
26
27
D5
D4
D3
D2
D1
V+ (Red)
CAN_H (white)
Shield
CAN_L (blue)
V- (black)
Figure 4. DeviceNet connections
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