Banner SC22-3E Safety Controller with Ethernet Bedienungsanleitung Seite 49
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4.7.4 Common Wire Installation
To avoid nuisance lockout codes 1.1, 1.2, or 1.5, give thoughtful consideration to the leadwire resistance of the 0V common wire and to
the currents flowing in that wire. Notice the location of the block in the diagram below representing leadwire resistance (RL).
Power Supply Other
Equipment
Safety Controller
0V 0V SO1 SO2 SO324V dc 24V dc
Load
Current
6 Output Loads
RL
Other
Current
RL = Leadwire resistance
V
o
= Voltage > 0.9V when a
safety output is off (or pulsing off)
may cause error codes 1.1, 1.2,
1.5
Figure 32. DC-common wire installation
When a safety output turns OFF, the voltage at the output terminal (VO ) must drop below 0.9V with respect to the 0V terminal of the
Safety Controller. If the voltage is higher than this, the Controller may think that the output is still on and lock out.
This residual voltage can occur in several ways:
• a large current flowing in a shared 0V conductor by other safety outputs that are still on,
• a common mode current flowing from other equipment, or
• either of these, along with a 0V wire that is too small, or too long.
The solution is to increase the wire gauge of the 0V common wire and/or consider using the courtesy 0V terminals on the Safety Control-
ler as shown in the following diagram. This eliminates the influence of common mode current from other equipment.
Power Supply Other
Equipment
Safety Controller
0V 0V SO1 SO2 SO324V dc 24V dc
Load
Current
6 Output Loads
Other
Current
Improved Wiring Scheme:
- Either dashed wire is OK
- Consider heavier wire
- Better: Use separate 0V return
for each pair of outputs (a+b)
when heavily loaded
1
a
1
b
2
a
2
b
3
a
3
b
Figure 33. DC-common wire installation: eliminating the influence of common mode current from other equipment
SC22-3/-3E Safety Controller Instruction Manual
P/N 133487 rev. C www.bannerengineering.com - tel: 763-544-3164 49
- Original Instructions 1
- Contents 2
- Contents 3
- 4 P/N 133487 rev. C 4
- Contents 5
- 1 About This Document 6
- 1.3 Standards and Regulations 7
- 1.4 Contact Us 8
- 2 Overview 9
- 2.1 Ethernet-Compatible Model 9
- 2.2 Applications 10
- 2.3 Design and Testing 10
- 2.4 Components 10
- 2.4.2 USB Connections 11
- 2.4.3 Ethernet Connections 11
- 2.4.4 SC-XMP Programming Tool 11
- 2.5.1 Onboard Interface (OBI) 12
- Accessing Fault Codes 14
- PCI Software Compatibility 15
- 2.6.2 Safety Outputs 16
- 2.6.3 Status Outputs 17
- 2.6.4 Virtual Status Outputs 17
- 2.7 System Settings 18
- 2.8 Internal Logic 19
- 2.9 Password Overview 20
- 3.3 Ethernet Cordsets 22
- 3.4 Interface Modules 22
- 3.5 Specifications 23
- 3.5.1 Dimensions 25
- 4 System Installation 26
- 4.1 Appropriate Application 26
- 4.3 Safety Input Devices 27
- SO1 SO2 SO3 28
- S = Simultaneous 29
- C = Concurrent 29
- Signal Change-of-State Types 30
- Signal Debounce Times 30
- 4.4 Non-Safety Input Devices 31
- 4.5 Input Device Resets 33
- 4.6 Safety Input Function 35
- 4.6.2 Two-Hand Control (THC) 36
- 4.6.3 Enabling Devices 36
- 4.6.4 Mute Function 37
- 4.6.5 Bypass Function 38
- 4.7.2 Safety Outputs 41
- Safety Input 42
- (ON-Delay) 42
- (OFF-Delay) 42
- (To SO 1A) 46
- (To SO 1B) 46
- 1A 1B 2A 2B 3A 3B A2 47
- 4.8 Status Outputs 50
- 4.9 Virtual Status Outputs 52
- 4.10 Commissioning Checkout 52
- 5.1.1 Configuration Tools 53
- 5.1.2 Build a Configuration 54
- Create a New Configuration 55
- Add an Input Device 55
- Finish the Configuration 57
- System Reset 59
- 5.1.4 Other Functions 60
- Export Documents 61
- Print Options 61
- Run Mode 63
- Configuration 63
- 6.2 Run Mode 64
- 6.3 Configuration Mode 64
- 6.3.3 Confirm Configuration 65
- 6.4 Edit Configuration 66
- 6.4.3 Outputs/System Settings 67
- 6.5 Add an Input 68
- 7.3.1 Run Mode Screen—OBI 72
- 7.4 Manual Reset 73
- 7.6 Reset Signal Requirements 74
- 8 System Checkout 75
- W1 W2 W3 W4 80
- 9.1 Cleaning 82
- 9 Troubleshooting 82
- 9.4 Recovering from a Lockout 86
- 9.5.1 Fault Log—PCI 87
- 9.5.2 Fault Log Recording—PCI 87
- 9.6.1 View Current Faults—OBI 88
- Device Name 89
- Fault Description 89
- Time Since Fault 89
- Fault Code 89
- Principles 90
- OFFON OFFON 91
- 10.2 Protective (Safety) Stop 92
- OpenOpen 95
- Open Open Open 96
- 24V 24V 24V 97
- 10.4 Optical Sensor 98
- 10.5 Two-Hand Control 100
- 10.6 Safety Mats 103
- Emergency Stop Hookup Options 108
- Category 2 E-Stop Circuit 108
- Category 3 E-Stop Circuit 108
- Category 4 E-Stop Circuit 108
- 10.8 Rope/Cable Pull 109
- S1 S2 S1 S2 111
- 10.9 Enabling Device 112
- ONOFF ONOFF 114
- Lockout/Tagout 115
- 10.11 Mute Sensor Pair 116
- Mute Device Requirements 117
- Inductive Proximity Sensors: 118
- 10.11.4 Mute Enable (ME) 119
- 10.11.5 Mute Lamp Output (ML) 119
- 10.11.7 Mute on Power-Up 120
- < 3s< 3s 122
- < 3s< 3s < 3s< 3s 123
- 11 Ethernet Reference 124
- 11.1 Ethernet Setting Access 124
- 11.3 Support Files 125
- Reserved 127
- 12 Glossary 128
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