Rockwell Automation Publication 1791ES-UM001G-EN-P - November 2016 33
About the Modules Chapter 2
Selecting a Power Supply
For CE LVD compliance, verify that the external power supply that provides
power to the modules is safety extra low voltage (SELV) rated. Some Rockwell
Automation® Bulletin 1606 power supplies are SELV-compliant. See Switched
Mode Power Supply Specifications Technical Data, publication 1606-TD002
,
and the installation instructions for the modules.
Table 6 - Guard I/O Module Descriptions
Catalog Number Description Enclosure Type
Rating
Safety Inputs Test Outputs
(1)
Safety Outputs (solid-state)
1791ES-IB16 CompactBlock™ safety input module Meets IP20 16 16 —
1791ES-IB8XOBV4 CompactBlock safety I/O module with solid-state outputs 8 8 8 bipolar outputs (4 pairs)
1732ES-IB12XOB4 ArmorBlock® safety I/O module with solid-state outputs Meets IP65/IP67
(when marked)
12 12 4 sourcing outputs
1732ES-IB12XOBV2 ArmorBlock safety I/O module with solid-state outputs 12 12 4 bipolar outputs (2 pairs)
1732ES-IB16 ArmorBlock safety input module Meets IP65/IP67
(when marked)
16 16 —
1732ES-IB8XOB8 ArmorBlock safety I/O module with solid-state outputs Meets IP65/IP67
(when marked)
888 sourcing outputs
1732ES-IB8XOBV4 ArmorBlock safety I/O module with solid-state outputs Meets IP65/IP67
(when marked)
8 8 8 bipolar outputs (4 pairs)
(1) Broken wires can be detected on the muting outputs.
ATTENTION: Prevent Electric Shock
To prevent electric shock, use a DC power supply that meets the following
requirements:
• A DC power supply with double or reinforced insulation; for example,
according to IED/EN 60950, or EN 50178, or a transformer according to
IEC/EN 61558.
• A DC power supply satisfies requirement for class 2 circuits or limited
voltage/current circuit stated in UL 508.
• An external power supply that is safety extra-low voltage (SELV) rated.
ATTENTION: Do Not Exceed Specified Voltage
• Do not apply DC voltages exceeding the rated voltages to the module.
• Apply properly specified voltages to the module inputs. Applying
inappropriate voltages causes the module to fail to perform its specified
function, which leads to loss of safety functions or damage to the module.
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