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INCORRECT USE OF MUTING
• Ensure that muting is only allowed during the opening stroke of the press (this is especially valid for presses running in
reverse mode).
• Never allow muting during the closing stroke.
INCORRECT MUTING SENSOR INSTALLATION
• Install the second muting sensor SM2 in such way that it is activated by the rotating cam at a position of minimum 6 mm above
the BDC (in Europe) or ¼ inch above the BDC (in North America). Muting sensor SM1 must have been activated max. 10 s
before SM2, in order to have a valid muting sequence.
• Install the first muting sensor SM1 in such way that it gets de-activated as soon as the press tool starts its closing stroke. The
first muting sensor getting de-activated stops the muting sequence. Both muting sensors must be de-activated to allow the
next muting sequence, and the activation of the safety device stops the hazard.
• It is NOT allowed to mute the safety device during the closing stroke of the press.
Failure to comply with this instruction could result in death or serious injury.
Typical wiring diagram application example 3A
dc+
1 A
0,5 A
max.
max.
2
3
(A)
FF-SG
(B)
7 1
4
6
5
A1+
S11 S12 S14 S13
-
+ +
-
FF-SRM200P2
A2-
M1 M2 48
muting error /
restart
dc-
Note (A):
Signals between redundant safety device inputs S11 to S14 or S21 to S24 must be applied within a max. time of 2.5 s.
Modes 20 to 39: muting using safety devices without test input: Unused safety device inputs must be connected to power:
S21 and S23 to (dc-); S22 and S24 to (dc+).
Note (B):
Modes 50 to 69: muting using safety devices with test input: Terminal 58 is used as test output that must be connected to the
test input of each safety device (refer to chapter "Test input").
Modes 50 to 59 (only): 1 non-mutable and 1 mutable safety device AND safety devices with test input: the mutable safety
device needs to be activated during the muting sequence.
Note (C):
Sensors contact type: Safety switch contacts are preferred for press applications.
Note (D):
External contactors: when external contactors are used, connect one normally closed contact of each contactor (or the normally
closed contact of the FF-SRE extension module) in series into the combined restart loop and External Device Monitoring (EDM)
loop S43/S44. Install arc suppressors across the coils of external safety relays.
Functional description
Supply voltage (A1/A2)
Mutable safety device(s)
SM1 or SM2
SM2 or SM1
Relays K1, K2
Relay status output (58)
Start P/B
Muting Lamp output (48)
Restart
: switched off
: flashing (0,66 Hz)
n
: n-times flashing (error)
: switched on
14
1 A
0,5 A
max.
max.
2
3
(A)
Light
FF-SG
(B)
curtains
7 1
4
6
5
SM1
(C)
S21 S22 S24 S23
S31
S32
-
+ +
-
-
+ +
K1
13 23
machine
control
K3
(D)
Fuses
6 A max.
Muting
t
t
t < t
<3 s
<10 s
max
Start
K3
SM2
(C)
(D)
K4
S34 S33
S41 S42 S44 S43
-
-
+ +
-
K2
24 14
58
K4
(D)
relay status
(B)
7
error 7:
(muting sensor
sequence)
t>
10 s
Mode selector
channel 1
channel 2
6
9
6
9
Selector
"A"
3
0
3
0
6
9
6
9
Selector
"B"
3
0
3
0
Internal view
Modes 30 to 39: muting with 2
muting sensors and 2 mutable
safety devices.
Example: mode 31: max. muting
time 20 s.
5
Muting
error 5:
(max.
muting
time)
t = t
max.
107111-11-EN FR26 GLO 503 Printed in Germany
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