Pilz

Muting unit

Dual-channel sfty. rly. / muting unit
Muting lamps monitoring
Instantaneous E-STOP (Emergency stop) monitoring
Parallel / sequential muting

24Vdc

Power LED indicator
S1 LED indicator
S2 LED indicator
S1+S2 LED indicator
Output LED indicator
ML Fault LED indicator
CH.1 LED indicator
CH.2 LED indicator

Safety output contacts ratings
8A (24Vdc; DC-1)
8A (240Vac; AC-1)
5A (24Vdc; DC-13)
5A (240Vac; AC-15)

plug-in/detachable screw term. connections

2 operating modes (with or without detection of shorts across contacts)

Plug-in

Dual-channel operation (contact or semiconductor outputs from ESPE) -- without detection of shorts across contacts
Dual-channel operation (contact or semiconductor outputs from ESPE) -- with detection of shorts across contacts. Redundant input circuit; earth faults in the input circuit or shorts across the input circuits are detected.
Monitored manual start -- The supply voltage must be presented and the safety circuits closed before the start contact is closed. The unit is not active until the start button has been operated once the waiting period has expired (see technical details)
The muting controller can be used for parallel (with 2 muting sensors) or sequential muting

5 x digital inputs (24Vdc; 25mA) (S11-S12; S21-S22; S31-S32; S51-S52; S61-S62)
1 x digital input (for additional sfty. light grid) (LA-; LA+; LB-; LB+)
1 x digital input (for additional sfty. light grid) (LA-; LA+; LB-; LB+)
1 x digital input (start input) (S33-S34)
1 x digital input (restart input) (S43-S44)

3 x instantaneous safety outputs (3NO / 3xSPST-NO each made of 2 N.O. contacts in series; 8A 24Vdc DC-1 or 240Vac AC-1 resistive load) (13-14; 23-24; 33-34)
1 x instantaneous aux. output (1NC / SPST-NC made of 2 N.C. contacts in parallel) (41-42)
5 x digital outputs (semiconductor; 24Vdc; 20mA) (Y32; Y36)

IP40

90mm width

94 mm

90 mm

121 mm

PPO housing
ABS front housing

-10...+55 °C

33 W

Commercialized

EN 60204-1
EN ISO 13849-1
VDE0113-1
SIL3 / PL.e / Cat.4
PFH = 3.01E-09
EN 61496-1
CE
cULus
EAC
TUV
CCC

SIL3 / PL.e / Cat.4

Positive-guided relay outputs -- 3 safety contacts (N/O); instantaneous / 1 auxiliary contact (N/C); instantaneous
4 inputs for muting sensors
1 ESPE input for light grids (2-channel; contact or semiconductor outputs)
1 input for additional safety light grid (2-channel; contact outputs) or safety contacts
Connection option for 2 muting lamps
Connection options for start button / key switch / feedback loop
5 semiconductor outputs
Monitors muting lamps
Muting mode -- sequential or parallel
LED display for switch status channel 1/2 / muting sensors / light grid / simultaneity requirement / muting lamp error
Semiconductor outputs signal -- Switch state of the safety contacts / Muting active / One of the muting lamps defective / Both muting lamps defective / Light grid (ESPE) active
Plug-in connection terminals (either spring-loaded terminal or screw terminal)
See order reference for unit types
The circuit is redundant with built-in self-monitoring.
The safety function remains effective in the case of a component failure.
The correct opening and closing of the safety function relays is tested automatically in each on-off cycle.

for muting lamp monitoring
for emergency STOP monitoring