Honeywell SYA14 Series Manual page 716

FF-SRS5939 Series
Figure 3. displays the maximal recommended
external temperature versus the total load of all the
control module contacts. To use this curve, do the
following:
(1) Sum all the current in each contact branch to
obtain the vertical axis value.
(2) Follow the horizontal line from the obtained value
and note intersection of the appropriate curve.
(3) Follow the intersection point down to determine
the maximal recommended external
temperature. (Ex: ∑ Ι = 5 A current inside safety
contacts, then T = 35 °C / 95 °F).
If the module is located in a higher temperature
environment, the lifetime of the electronic
components may be reduced. Ventilation of the
cabinet may be required.
MECHANICAL INSTALLATION
The FF-SRS5939 must be installed inside a IP54 /
NEMA 3 rating enclosure or better. The module can
be clipped easily onto a 45 mm width EN 50022-35
rail (see figures 4 and 5 for installation and removal).
Specific features of this product include removable
terminal strips. This feature provides easy access to
wiring during installation and reduces machine
downtime during maintenance.
FIG. 4. MOUNTING DIMENSIONS
a Width: 45 mm 1.77 in.
b Height: 74 mm 2.91 in.
c depth: 121 mm 4.76 in.
a
Rail
FIG. 5. INSTALLATION DIAGRAM
FIG. 6. REMOVABLE COVER PANEL AND
TERMINAL BLOCKS
3
FIG. 7. FUSE LOCATION
REPLACING FUSE
This internal fuse will protect the control module
against overvoltage. To replace it, remove the front
(for reference only)
cover as describe in fig.6. Replace the fuse and
install back the protective cover.
EUROPEAN REGULATION
requirements (Category 4 as described in the EN
954-1 European norm). Category 4 control modules
are designed and manufactured in such a way that a
single breakdown or an accumulation of failures does
not lead to the loss of the safety function when a
dangerous situation arises. The safety function is
c
maintained on a permanent basis.
The FF-SRS5939 control module functions with dual
channel redundancy and positive self-checking
monitoring. This means that a faulty component in
our system will make the safety control module fail in
a safe mode.
CONTROL RELIABILITY (US REGULATION)
or interface shall be designed, constructed and
installed such that a single component failure within
the device, interface or system shall not prevent
normal stopping action from taking place but shall
prevent a successive machine cycle." (ANSI B11.19-
1990, 5.5)
Rem
Term
system shall be constructed so that a failure within
the system does not prevent the normal stopping
action from being applied to the press when required,
but does prevent initiation of a successive stroke until
the failure is corrected.
detectable by a simple test, or indicated by the
control system."
S34
A1(+) S12 S33
Y1
Removable terminal strip
RELAY
Removable terminal strip
A2(-) S22 X3 X1
The internal design
"Control Reliability" means that "the device, system
OSHA 29 CFR 1910.217 states that "the control
107033-12 EN FR26 GLO 0499 Printed in Germany
PK107033-EN
Y2 13 23 31
RELAY
X2 14 24 32
meets the highest
The failure shall be