Renishaw RCU10, Installation And User Manual, Page: 72 / 202

Controller integration 5-5

Deactivate the Seek Ref line on J7 – Auxiliary I/O port.

Check that the Suspend line is inactive.
Warning line
In order to check the warning line, the easiest method is to briefly disconnect an
unallocated environmental sensor (not assigned to any compensation process).

Ensure that the drives are inactive, and that they will not become active during the
test procedure.

Power up the RCU10 system to place it into compensation mode.

Clear the initial error asserted at start-up by sending a Reset signal to the RCU10.

Check on the machine control that the Warning line is inactive.

Disconnect one of the environmental sensors that is either directly connected to the
RCU10 or assigned across the network.

Check on the machine control that the Warning line is active (other error lines may
be asserted).

Reconnect the environmental sensor.

Check on the machine control that the Warning line is inactive.
NOTE: If the allocated sensor is removed for longer than one second and the RCU10 has
been referenced, then the Suspend and Error lines will also be asserted to indicate the
failure of a compensation algorithm. These can be cleared by issuing a Reset signal to the
RCU10 to clear the Error line and by referencing the axis again to clear the Suspend line.
5.2.3 Testing environment sensors
In order for the RCU10 to function correctly, it is important to ensure that all the
environmental sensors are working properly. It is not necessary to perform a calibration
on each sensor, as this is done before they are despatched from Renishaw. However, it is
important to ensure that each sensor is working as expected and assigned to the correct
function.
Checking the sensors:

Open the sensor window on the RCU CS software display and check that the
temperature readings displayed on the screen are sensible. A failed sensor, a short
circuit wiring or a misconnection will generally cause an obviously incorrect reading.

Warm each sensor in turn by either holding it or breathing on it, and watch for the
correct response on the screen (note that artificially heating the sensor in this way
may cause a rate of change error).