Safety Input Device Options - Banner SCR P Series Instruction Manual

Programmable Safety Controller SCR P
impact shock, or switch noise conditions result in a need for longer signal transition times. If the debounce time is set too
short under these harsh conditions, the system may detect a signal disparity fault and lock out. The default setting is 50 ms.

6.4 Safety Input Device Options

General Circuit Symbols
1 & 2 Terminal
Single Channel
(see note 1)
2 & 3 Terminal
Dual Channel
(see note 2)
2 Terminal Dual Channel
PNP w/ integral monitoring
(see note 3)
3 & 4 Terminal
Dual Channel
(see notes 2 & 4)
2 & 3 Terminal Dual Channel
Complementary
2 Terminal Dual Channel
Complementary PNP
24V
4 & 5 Terminal Dual Channel
Complementary
4 Terminal Dual Channel
Complementary PNP
4 Terminal Safety Mat
WARNING: Incomplete Information—many installation considerations that are necessary to properly
apply input devices are not covered in this document. Refer to the appropriate device installation
instructions to ensure the safe application of the device.
WARNING: This table lists the highest safety categories possible for common safety rated input device
circuits. If the additional requirements stated in the notes below are not possible due to safety device or
installation limitations, or if, for example, the Safety Controller's IOx input terminals are all in use, then the
highest safety category may not be possible.
Tip: INx & IOx input terminals, these circuits can be manually configured to meet Category 4 circuit
requirements by changing the first (left most) standard input terminal (INx) to any available convertible
terminal (IOx) as shown below. These circuits will detect shorts to other power sources and between
channels when the input has been in the Stop state for at least 2 seconds.
Notes:
1. Circuit typically meets up to ISO 13849-1 Category 2 if input devices are safety rated and fault exclusion wiring
practices prevent a) shorts across the contacts or solid state devices and b) shorts to other power sources.
2. Circuit typically meets up to ISO 13849-1 Category 3 if input devices are safety rated (see Tip: INx & IOx
input terminals above).
The 2 Terminal circuit detects a single channel short to other power sources when the contacts open and close
22
ES
24V
Cat 2 Cat 2
24V
Cat 3 Cat 3
ON ON
Cat 4 Cat 4
Cat 4 Cat 4
24V
Cat 4
ON OFF
Cat 4
Cat 4
ON OFF ON OFF
Cat 4
Figure 8: Input Device Circuit—Safety Category Guide
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Circuits shown in Run State
GS OS RP PS
Cat 2 Cat 2 Cat 2
Cat 3 Cat 3 Cat 3
Cat 4 Cat 4 Cat 4
Cat 4 Cat 4 Cat 4
Cat 4 Cat 4 Cat 4
Cat 4 Cat 4 Cat 4
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Circuits shown in Stop State
SM DCD THC
Type IIIa Cat 1
Type IIIb Cat 3
Cat 4 Type IIIa Cat 1
Type IIIa Cat 1
Type IIIb Cat 3
Type IIIc Cat 4
Type IIIc Cat 4
Cat 3
ED
Cat 3
Cat 4
Cat 4
Cat 4
Cat 4
Cat 4
Cat 4