Table of Contents
Advertisement
CAUTION . . .
Shock Hazard
Always disconnect power from the E-Stop
Safety Module and all power from the
machine being controlled before making
any wire connections.
Electrical installation and wiring must be
made by qualified personnel and must
comply with the NEC (National Electrical
Code), EN 60204-1 and -2, and all
applicable local standards and codes.
E-Stop
E-Stop
S11
S21
Figure . Series connection of multiple
E-stop switches
Safety Gate or Guard with
end-of-travel stops and two
OPEN
individually mounted
Safety Interlocking Switches
S11 S21
Figure . Hookup using contacts from two
safety switches
Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com
E-Stop Safety Module
The E-Stop Safety Module must be installed inside an enclosure. It is not designed for
exposed wiring. It is the user's responsibility to house the Safety Module in an enclosure
with NEMA 3 (IEC IP54) rating, or better.
Dimensions of the Safety Module are shown in the diagram on page 10. The Safety
Module mounts directly to standard 35 mm DIN rail.
Heat Dissipation Considerations
For reliable operation, the user must ensure that the operating specifications are not
exceeded. The enclosure must provide adequate heat dissipation, so that the air closely
surrounding the Module does not exceed the maximum operating temperature stated in
the Specifications (page 11). Methods to reduce heat build-up include venting, forced
airflow (e.g., exhaust fans), adequate enclosure exterior surface area, and spacing
between modules and other sources of heat.
It is not possible to give exact wiring instructions for a device such as an E-Stop Safety
Module which interfaces to a multitude of machine control configurations. The following
guidelines are general in nature.
The ES-UA-5A and ES-VA-5A Modules have no delay function. Their output relay
contacts open within 25 milliseconds after an E-stop switch contact opens. This classifies
these E-Stop Safety Modules as functional "Category 0" E-stop controls, as defined by
NFPA 79 and IEC/EN 60204-1.
Connection of E-Stop Switch
S22
S12
Connect the poles of the E-stop switches as shown in Figures 4 and 6. The switches
are shown in the "armed" position with both contacts closed. Multiple E-stop switches
connected to one E-Stop Safety Module must be series connected (see Figure 2 and the
warning on page 4).
Connection of Safety Switches
Models ES-UA-5A and ES-VA-5A may be used as safety gate monitoring modules.
To achieve Category 4 operation per EN 954-1, two positive-opening safety switches
operate concurrently when the gate or guard is opened (see Figure 3).
The Safety Modules verify concurrent opening of two contacts – one from each safety
switch. Reset of the Safety Modules is not possible if one switch fails to open, or if a
short circuit between the safety switches occurs.
Please contact the Banner Factory Applications Group at the numbers listed on the last
page to discuss your intended use.
S22
S12
– Models ES-UA-5A and ES-VA-5A
Mechanical Installation
Electrical Installation
Advertisement
Table of Contents
