Honeywell SYA14 Series Manual page 718

FF-SRS5939 Series
In the manual restart mode, the Normally Open contacts (13/14, 23/24) will close and the Normally Closed
contact (31/32) will open 100 ms after releasing the push-button, provided the 2 Electrosensitive Protective
Equipment signals are available and the FSDs monitoring loop is closed (if the FSD monitoring loop is set).
FIG. 10. MANUAL RESTART FUNCTIONAL DIAGRAM (with Final Switching Devices monitoring)
ON
ESPE
input
OFF
ON
ESPE
input
OFF
< 250 ms
FSD closed
monit.
open
input
0.1s<t<1.5 s
ON
Restart
input
OFF
100 ms max.
ON
NO
contacts
OFF
ON
NC
contact
OFF
1
The module will not restart :
− if the push-button is actuated for more than 1.5s, or if a
permanent short-ciruit of the restart push-button input occurs.
−
if the FSD monitoring loop remains permanently open, or
remains closed for more than 250 ms or permanently (i
case, the internal relays will be briefly energized)
MODULE INPUTS S12/S22
The S12 and S22 input signals respectively
energize the internal relays K1 and K2. In the
automatic restart mode, the module checks that
both input signals switch ON simultaneously within
a 30 ms time frame. If a permanent short-circuit
occurs on one of the module input (S12 for
example), the corresponding internal relay (K1) will
remain energized whatever happen. As soon as the
ESPE is actuated, this failure leads to the
immediate stoppage of the machine. This fault
condition is cancelled if the input signals switch
OFF.
IMPROPER USE OF THE RELAY OUTPUT CONTACTS
Always connect 2 contacts out of the 3 contacts delivered
by the FF-SRS5939 to the machine control circuitry.
Failure to comply with these instructions could result
in death or serious injury.
FIG. 11. MODULE FRONT PANEL
5
< 250 ms
15 ms max.
15 ms max.
0.1s<t<1.5 s
0.1s<t<1.5 s
100 ms max.
2 3 4
S12
1. Normal operation : emergency stop condition is
S22
removed and the FSDs monitoring loop gets
open after the push-button is pressed and
Y1/Y2
released.
S33/S34
2. Normal operation : emergency stop condition
occurs and the FSDs monitoring loop gets
13/14
23/24
closed.
3. Normal operation : emergency stop condition is
31/32
removed and the FSDs monitoring gets open
5 after the push-button is pressed and released.
4. .Failure on the FSDs : emergency stop
condition occurs and the FSDs monitoring loop
remains open.
5.
Failure on the FSDs : emergency stop condition
is removed but the machine cannot restart after
n this
the push-button is pressed and released.
.
EXTENSION MODULES AND EXTERNAL
CONTACTORS
One or more FF-SRE3081 Extension modules or
external contactors with positively driven contacts
can be used to multiply the number of contacts of the
FF-SRS5939 interface control module. If multiple
safety contacts are used in parallel with one load, the
maximum admissible current can be increased.
For connection of the FF-SRE 3081 to the FF-SRS
5939 module, see the Installation Instructions for the
FF-SRE 3081 Extension Module.
LED INDICATORS
The FF-SRS5939 module has five LED status indicators
as illustrated below.
Selected Restart Mode
Automatic restart
selected
Yellow
ESPE Inputs Status
S12
Green
Both safety device
outputs are closed
S22
Green
Relay Outputs Status
Internal relays are energized,
Green
NO contacts are closed,
NC contact is open.
Red
107033-12 EN FR26 GLO 0499 Printed in Germany
PK107033-EN
Manual restart
Press and release
selected
the restart push-button
Both safety device
outputs are open
Internal relays are de-energized,
NO contacts are open,
NC contact is closed.
light off light on blinking light