ABB PFSK142 3BSE006505R1 Robot circuit board

Description

The digital outputs will be set to a predetermined value if the OSP-watchdog timer

expires or if the SetOSPState command is received. The watchdog timer is re

triggered every time the correct module address has been decoded (or broadcast). If

the watchdog timer expires or if the SetOSPState command is received, the module

enters the OSP state.

The function in OSP state, and when reentering the operational state, will be

different depending on how the DO function is configured (see Digital Output 1 – 4

above):

1. Function in OSP state: No more pulses will be activated as long as the module

remains in OSP state. The DO pulse is always completed if the OSP-state is

entered during an active DO pulse (this is, the pulse width is always in

accordance with the DOTIME value).

Function when reentering operational state: The coincidence function has to be

enabled before normal DO function will start.

2. Function in OSP state: Same as in 1. above. Function when reentering

operational state: A new DO-pulse will be started as soon as a modulebus

frame with DOVALUE=1 is received.

3. Function in OSP state: The digital outputs are set to their OSP values which

can be configured as a predefined value or to use last good value sent.

Function when reentering operational state: The outputs keeps the OSP value

until a modulebus frame with a new DOVALUE value is received.

Each channel has inputs for 12 V, 24 V and NAMUR input signals and a

configurable transducer power output. The configurable transducer power is set on

module (not channel vise) for all channels to either NAMUR, 12 V or 24V.

The module distributes the external transmitter supply to each channel. This adds a

simple connection to distribute the supply to 2-wire or 3-wire transmitters. The

transmitter power is supervised and current limited. The inputs can be supervised

for short circuit and open wire. The supervision can be enabled/disabled per module

(not channel vise).

The transducers should be connected by shielded twisted pair cable if the used filter

time is less than 800μs.

The MTU have to be chosen with consideration to function and signal range, see

Table 100. Type of sensor to be used is defined by parameters.

The parameter set the sensor power output for NAMUR sensors to 8.2 V, for 12 V

sensors to 12 V and for 24 V sensors to 24 V.

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