Eaton Industrial Switchgear - xCommand Control & Indication

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2010 CA08103002Z-EN
Position Switches LS...ZBZ, LS...ZB, LSR... 3/15
LS-...ZB
￫Personnel protection
Closed Open Door open ￫ Enabling contact (21-22) opening positively
Door open ￫ Enabling contact safely open; tamperproof against
simple tools
Door close ￫ Triple coded actuator closes the enabling
contact
Switch must never be used as a mechanical stop!
LSR-...TKG
LSR-...TS
￫Personnel protection
Closed Open Open of guard mechanism ￫ Enabling contact (21-22) opening positively
Guard mechanism open ￫ Enabling contact safely open; tamperproof against
simple tools
Closing of guard mechanism ￫ Closes enabling contact (21–22)
21 22
13 14
21 22
13 14
21 22
13 14
21 22
13 14
LS-S02-...FT-ZBZ, spring-powered interlock (closed-circuit current principle)
￫ Increased personnel protection with separate signal for door position
Interlocked Released Open Door closed and
interlocked
￫ De-energized:
even with mains failure or wire breakage:
door interlocked = safe state
Enabling contact (21-22)
To unlock door ￫ Applies voltage to coil (A1, A2) e.g. via
zero-speed monitor, enabling contact (21-22)
opens
Door open ￫ Both contacts blocked in the open position,
even with tampering with simple tools
Door close ￫ Triple-coded actuator cancels enabling contact
inhibit; door position contact (11-12) closes
Interlock door ￫ Disconnect coil voltage:
1st actuator interlocked
2nd enabling contact closed
￫Enable only when door locked
Switch must never be used as a mechanical stop!
A1
A2
21 22
11 12
A1
A2
21 22
11 12
US
A1
A2
21 22
11 12
U S
LS-S02-...MT-ZBZ, magnet-powered interlock (operating current principle)
￫ Process protection + increased personnel protection with separate signal
for door position
Interlocked Released Open Door closed and inter-
locked
￫ Energized:
Enables immediate access in the event of
mains failure and wire breakage. Both
contacts closed
To unlock door ￫ Applies voltage to coil (A1, A2) e.g. via
zero-speed monitor, enabling contact (21-22)
opens
Door open ￫ Only possible once it is released, door
position contact (11-12) opens
Door close ￫ Triple-coded actuator cancels enabling
contact inhibit; door position contact (11-12)
closes
Interlock door ￫ Disconnect coil voltage:
1st actuator interlocked
2nd enabling contact closed
￫Enable only when door locked
Switch must never be used as a mechanical stop!
A1
A2
21 22
11 12
U S
A1
A2
21 22
11 12
A1
A2
21 22
11 12