Banner MMD-TA-11B Muting Modules - Manual (Page 38)

36
P/N 116390 rev. C
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
MMD-TA-11B / MMD-TA-12B Muting Module
Instruction Manual
System Installation
+24V dc
A1
+24V dc 0V dc
EDM1
EDM2
OSSD1
OSSD2
0V
0V
MMD-TA-12B
Y5
Y6
Y7
Y8
A2
Y1
Y2
Y3
Y4
+
+
S3
S4
Y3
Y1
13
23
33
Feedback (optional)
Y4
Y2
14
24
34
S1
S2
K2 K1
Machine
Control
MPCE
2
MPCE
1
IM-T-9A
*
*
Figure 3-25. Generic machine interface hookup, model MMD-TA-12B: interface module with two-channel EDM
WARNING . . . Proper Wiring
The generalized wiring configurations shown are provided only
to illustrate the importance of proper installation. The proper
wiring of the Muting Module to any particular machine is solely the
responsibility of the installer and end user.
CAUTION . . . Shock Hazard
Always disconnect all power from the Muting Module and the
guarded machine before making any connections or replacing any
component. Use extreme caution to avoid electrical shock at all
times. Serious bodily injury or death could result.
* Installation of transient (arc) suppressors across the coils of MPCE1 and
MPCE2 is recommended (see Warning)
WARNING . . . Use of Transient Suppressors
Transient suppressors are recommended. They MUST be installed
across the coils of the machine control elements. NEVER install
suppressors directly across the outputs of the Module! It is possible for
suppressors to fail as a short circuit. If installed directly across the contacts of
the Module, a short-circuited suppressor will create an unsafe condition.
WARNING . . .
OSSD Interfacing
To ensure proper
operation, the Muting Module
output parameters and machine
input parameters must be
considered when interfacing the
Muting Module solid-state OSSD
outputs to the machine inputs.
Machine control circuitry must be
designed so that:
• The maximum cable resistance
value between the Muting Module
solid-state safety outputs and the
machine inputs is not exceeded,
• The Muting Module solid-state
safety output maximum
OFF-state voltage does not result
in an ON condition, and
• The Muting Module solid-state
safety output maximum leakage
current, due to the loss of 0V, will
not result in an ON condition.
Failure to properly interface the
OSSD outputs to the guarded
machine could result in serious
bodily injury or death.