• Diverse-redundant microcontrollers
• Monitors two Banner STB Self-Checking Optical Touch Buttons, or two mechanical
• Two redundant, forced-guided (mechanically linked) output contacts rated at 6 A
• Two auxiliary solid-state outputs (NPN and PNP), plus auxiliary N.C. relay output
• Feedback input monitors external machine control elements
• 5 indicator LEDs for Power, Fault, Input 1, Input 2 and Output
• 24V ac/dc operation
• DIN-rail-mountable 22.5 mm-wide housing with removable terminal blocks
• 500 ms (max.) simultaneity requirement for touch-/push button operation
A DUO-TOUCH SG Two-Hand Control Safety Module may be used with:
• Two Banner STB Self-Checking Optical Touch Buttons, each with one normally open
• Two Banner STB Self-Checking Optical Touch Buttons, each with two current-sourcing
• Two mechanical push buttons, each with one normally open and one normally closed
If the machine operator removes one or both hands from the actuating device(s), the
Duo-Touch SG 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.
The Duo-Touch SG Two-Hand Control Kit system has been designed to meet:
• Type IIIC requirements of ISO 13851 (EN 574) Safety of Machinery – Two-Hand
• Category 4 requirements of ISO 13849-1 (EN 954-1) Safety of Machinery – Safety-
The Safety Module’s output signal consists of two sets of redundant, forced-guided
(mechanically linked) contacts (see Figure 4). Circuitry within the Safety Module
monitors these 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.
DUO-TOUCH SG Safety Module LED Indicators (see Figure 1)
Power On:
Fault:
Input 1 (2) Status:
Output Status:
DUO-TOUCH
Model AT-FM-10K, for use with two actuating devices
and one normally closed relay output contact, or
PNP outputs, or
contact (Form C contact)
push buttons
Control Devices, and
Related Parts of Control Systems – Part 1: General Principles of Design
02/04
®
ON when power is applied
ON if simultaneity is not met or external wiring fault
Flashing when internal fault condition is detected
ON if touch button is activated
OFF when button is not activated
Flashing if external wiring fault is detected
ON if both relays (K1 and K2) are energized
Flashing if feedback error has occurred
SG Two-Hand Control Module
Description
Features
P/N 64137 rev. C