Banner DUO-TOUCH Two-Hand Control Modules - Manual

Printed in USA 12/04 P/N 47550 rev. E
DUO-TOUCH ®
– Two-Hand Control Modules
Models AT-FM-2A, AT-AM-2A, and AT-BM-2A, for Use with Two Actuating Devices
Features
• Two redundant, forced-guided (mechanically linked) output contacts rated at 4 A
• One auxiliary N.C. relay output rated at 0.5 A
• Feedback input for monitoring external machine control elements
• Four indicator LEDs for Power, Input 1, Input 2, and Fault
• 24V ac/dc, 115V ac, or 230V ac operation, depending on model
• DIN-rail-mountable 45-mm-wide housing
• 500 ms (max.) simultaneity requirement for touch-/push-button operation
Description
A DUO-TOUCH Two-Hand Control Safety Module may be used with:
• Two Banner OTB Optical Touch Buttons, each with one normally open relay output
contact, or
• Two Banner OTB Optical Touch Buttons, one with current-sourcing PNP output, and
one with current-sinking NPN output, or
• Two mechanical push buttons, each with one normally open contact
If the machine operator removes one or both hands from the actuating device(s),
the DUO-TOUCH Module relays de-energize, causing the output contacts to open.
The relays will not re-energize until both actuating devices are deactivated and then
simultaneously reactivated (SSI input channels closed).
The DUO-TOUCH Two-Hand Control system has been designed to meet:
• Type IIIA/B requirements of ISO 13851 (EN 574) Safety of Machinery – Two-Hand
Control Devices, and
• Category 1 and 3 requirements of ISO 13849-1 (EN 954-1) Safety of Machinery –
Safety-Related Parts of Control Systems – Part 1: General Principles of Design
The Safety Module’s output signal consists of two sets of redundant, forced-guided
(mechanically linked) contacts (see figures on page 8). Circuitry within the Safety
Module is Category 4 (per EN954-1) without consideration of the inputs. This circuitry
monitors the internal contacts and prevents an output signal from occurring if a fault
is detected. A feedback loop is offered for monitoring the status of the machine control
elements.
WARNING ...
Point-of-Operation
Guarding
When properly installed,
the DUO-TOUCH Two-Hand Control
Safety Module provides protection only
for the hands of the machine operator.
It may be necessary to install additional
safeguarding, such as safety light screens
and/or hard guards, to protect personnel
from hazardous machinery.
Failure to properly guard hazardous
machinery can result in a dangerous
condition which could lead to serious
injury or death.
!
LISTED LISTED
Presence
Sensing
Device
10Y8