Two Channels Ossd Connection; Reset Button Connection Example - ABB Sentry SSR32 Product Manual

Two channels connection with equivalent contacts from T1/T2
7.4

Two channels OSSD connection

Safety devices with dual OSSD outputs can be connected to R1 and R2. Short-circuit between
the signals and to 24V DC are detected by the safety device from where the OSSD-signal
originates.
Two channels connection with OSSD external signals
7.5

Reset button connection example

To use the multi-reset function the X1 inputs must be connected in parallel from the reset
button. The X4 outputs must be parallel connected to the reset button indication light. All the
safety relays involved in the multi-reset chain must be set to manual reset.
Connection example of reset button including indication light.
Mixed state examples
SR1
A
2TLC010067M0201 Rev.G
SR1 SR2 SR3
SR2
A
SR3
A
Mixed state
A
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