Simpro Dumpmaster, User Manual

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5.9 Safety-Monitoring System (PL(d)/PL(e) only)
If you do not operate a machine with a safety-monitored control system to achieve ISO
13849-1 or AS/NZS 4024 PL(d) or PL(e), please disregard this section.
Machines with an ISO 13849-1 safety rating of PL(d) or PL(e) are fitted with a Rockwell CR-30
Safety Relay to monitor the safety systems. The CR30 Safety Relay continuously monitors the
status of the Emergency Stop contacts, door lock, cradle-lowered sensor, and tipper-in-
position sensor (if fitted).
The Safety Relay goes into SAFE MODE:
1. If any fault is detected;
2. Whenever the door is unlocked or opened;
3. Whenever the Emergency Stop is pressed;
4. Whenever the tipper is moved away from the ‘safe’ position (optional).
Whenever the machine is in SAFE MODE the blue RESET lamp glows, and the machine must
be
‘ reset ’ before it can be operated. To reset the machine, first ensure the door is correctly
closed and locked, the Emergency Stop is released, and the tipper is in the correct position.
Next, press and hold the RESET button for about two seconds. A diagnostic test is run on the
machine, and if all safety functions are operating correctly the lamp will go out when the
button is released, indicating a successful reset. If a fault has been detected in any of the
safety equipment or connections, the machine will not reset and cannot be operated
– the
RESET lamp will continue to glow.
This documentation is to assist an engineer or electrician to find and repair any fault
preventing the system from resetting. Most faults can be traced from the LEDs on the CR30
safety relay itself; some locks and sensors also have LEDs to assist in trouble-shooting.
5.9.1 440C-CR30 Safety Relay
The 440C-CR30-22BBB (CR30) relay is a software-configurable safety relay. This device is
intended to be part of the safety-related control system of a machine. The CR30 safety relay
is based on the Micro800 platform and must be configured using a personal computer (PC)
with the Allen-Bradley® Connected Components Workbench software.
The housing is red to signify it as a safety
device and to distinguish it from the grey-
coloured standard controllers.
The CR30 safety relay accommodates up to
24 safety monitoring functions. Examples of
safety monitoring functions are single channel
input, dual channel input, two hand control,
reset, and feedback. It has 22 embedded
safety rated inputs and outputs and accepts
up to two plug-in modules, each of which has
four standard inputs and four standard
outputs.