Instruction Manual

ManualsBrandsBanner ManualsSpecial machineryExtension Modules

EM-F-7G Safety Extension Module

One-channel control with four safety output channels

Printed in USA P/N 55799

Features

• Safety Extension Module provides additional safety outputs for a Primary Safety

Device (for example, an E-stop safety module or a two-hand control module)

• One-channel control

• Features four 6-amp switching channels for connection to control-reliable machine

power interrupt circuits

• Contact status outputs are provided for connection to the Primary Safety Device’s

monitoring input

• 24V ac/dc operation

• Housed in a narrow, 22.5 mm (0.9") DIN-rail-mountable module

• Design complies with standards UL 991 and EN 60204

Description

The model EM-F-7G Safety Extension Module provides additional forced-guided

(positive-guided) relay contacts for a Primary Safety Device, such as an E-stop Safety

module or a two-hand control module. Controlled by a safety output of the Primary

Safety Device, the EM-F-7G Extension Module provides four safety outputs. These

outputs may be connected to control-reliable machine power interrupt circuits. Each

of the four Extension Module safety outputs is a series connection of two forced-

guided relay contacts.

The safety outputs of the Safety Extension Module follow the action of the safety

output from the Primary Safety Device which controls it, within a switching delay time

of approximately 20 milliseconds. The Extension Module’s four safety outputs are

each rated for up to 250V ac/dc at up to 6A.

The Safety Extension Module offers an output circuit at terminals Y1 and Y2 which

provides K1 and K2 contact status information for connection to the monitoring input

of the Primary Safety Device (see Figure 3). This monitoring circuit prevents the

Primary Safety Device from being reset if contacts of either K1 or K2 of the Extension

Module fail in a shorted condition.

The Safety Extension Module has indicators for input power (green), and status of

internal relays (K1 and K2, both green) (see Figure 1). There are no adjustments and

no user-serviceable parts. See page 6 for information regarding repair service.

WARNING . . .

This Safety Extension Module is not a point-of-operation guarding device, as defined by

OSHA regulations. It is necessary to install point-of-operation guarding devices, such as safety light screens

and/or hard guards, to protect personnel from hazardous machinery. Failure to install point-of-operation

guards on hazardous machinery could lead to serious injury or death.

rev B

Sep 2012

Summary of content (8 pages)

PAGE 1
EM-F-7G Safety Extension Module One-channel control with four safety output channels Features • Safety Extension Module provides additional safety outputs for a Primary Safety Device (for example, an E-stop safety module or a two-hand control module) • One-channel control • Features four 6-amp switching channels for connection to control-reliable machine power interrupt circuits • Contact status outputs are provided for connection to the Primary Safety Device’s monitoring input • 24V ac/dc operation • Hous
PAGE 2
Safety Extension Module – Model EM-F-7G ! IMPORTANT NOTICE . . . Read this page before proceeding! Banner Engineering Corp. has made every effort to provide complete application, installation, operation, and maintenance instructions. In addition, any questions regarding the use or installation of this Banner Safety Extension Module should be directed to the factory applications department at the telephone numbers or addresses shown on the back cover.
PAGE 3
Safety Extension Module – Model EM-F-7G Model EM-F-7G Specifications Supply Voltage and Current A1-A2: 24V ac/dc, +/-10%, 10% maximum ripple on dc Supply Protection Circuitry Protected against transient voltages and reverse polarity Output Configuration Four output channels: Each channel is a series connection of two forced-guided (positive-guided) safety relay contacts – AgSnO2 Contact ratings: Maximum voltage: 250V ac/dc Maximum current: 6 A ac/dc (at specified operating temperature) Minimum current:
PAGE 4
Safety Extension Module – Model EM-F-7G Installation Primary Safety Device Requirements Model EM-F-7G Safety Extension Module is driven by one safety output channel of a Primary Safety Device. The design of the Primary Safety Device must meet OSHA and ANSI control reliability requirements. The EM-F-7G must be used only with a Primary Safety Device which has a dedicated input for feedback monitor contacts (see hookup diagram, Figure 3).
PAGE 5
Safety Extension Module – Model EM-F-7G ! WARNING . . . Use of Arc Suppressors If arc suppressors are used, they MUST be installed as shown across the actuator coil of the master stop control elements (MSC1 to MSC4). NEVER install suppressors directly across the output contacts of the Safety Extension Module. It is possible for suppressors to fail as a short circuit.
PAGE 6
Safety Extension Module – Model EM-F-7G Connection to the Machine to be Controlled The hookup diagram in Figure 3 shows a generic connection of the four safety output channels of the Safety Extension Module to Master Stop Control Elements MSC1 through MSC4.
PAGE 7
Safety Extension Module – Model EM-F-7G Periodic Checkout The checkout procedure described on page 6 should be performed according to the intervals specified by the product documentation of the Primary Safety Device controlling this Safety Extension Module. Repairs Do not attempt any repairs to the EM-F-7G Safety Extension Module. It contains no field-replaceable components. Return the Safety Extension Module to the factory for warranty repair or replacement.
PAGE 8
Safety Extension Module – Model EM-F-7G Banner Engineering Corp Limited Warranty Banner Engineering Corp. warrants its products to be free from defects in material and workmanship for one year following the date of shipment. Banner Engineering Corp. will repair or replace, free of charge, any product of its manufacture which, at the time it is returned to the factory, is found to have been defective during the warranty period.