Allen-Bradley Guardmaster - EMD Safety Relay

Rockwell Automation Publication 440R-UM013E-EN-P - March 2017 37
Configuration Chapter 4
EMD Safety Relay
The EMD safety relay has two switches. The combination of the switch
settings determines the functionality and the duration. During configuration,
the Time switch determines the duration of the Range switch. Figure 26
and
Table 7
show the setting options for the Range and Time switch.
With the Time switch set to 1 at the start of the configuration process, the
duration of the Range switch is the shorter range.
With the Time switch set to 10 at the start of the configuration process, the
duration of the Range switch is the longer range.
Figure 26 - EMD Range and Time
Table 7 - EMD Range and Time Settings
Example 1: The range setting is 3 (starting with the Time set to 1), and the
Time setting is 5. Then the off-delay is: 30s * 50% = 15 seconds
Example 2: The range setting is 6 (starting with the Time set to 10), and the
Time setting is 1. Then the on-delay is: 3,000 s * 10% = 300 seconds
Position
Range
TimeFunction Range (Time 1) [s] Range (Time 10) [s]
0Start Configuration — — —
1
Off Delay
0.1…1 10…100 10
2 1…10 100…1000 20
3 3…30 300…3000 30
4 30…300 — 40
5
On Delay
0.3…3 30…300 50
6 3…30 300…3000 60
7 30…300 — 70
8
Jogging
0.1…10 100…1000 80
9 3…30 300…3000 90
10 — — — 100
1: 10%
2: 20%
3: 30%
4: 40%
5: 50%
6: 60%
7: 70%
8: 80%
9: 90%
10: 100%
x 10 % of max.
5: 0.3...3 s
6: 3...30 s
7: 30...300 s
8: 0.1...10 s
9: 3...30 s
1: 0.1...1 s
Start Conguration with Time Set To:
1 10
10...100 s
O-Delay
On-Delay
Jog
100...1000 s
300...3000 s
—
—
2: 1...10 s
3: 3...30 s
4: 30...300 s
30...300 s
300...3000 s
100...1000 s
300...3000 s
TIME
TIME
RANGE
1
2
3
4
5
67
8
10
9
O
On
Jog
0
1
2
3
4
5
6
7
8
9