9 https://qbrobotics.com/products/qb-softhand-research
QB SOFTHAND RESEARCH USER GUIDE —35
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8.8 Error C740A0 on e-Series robots
8.8.1 Problem
If you are using an old qb SoftHandor an old URCap version it may happen that you experience theerror
"!Tool!A C740A0: Hardware monitoring: Critical error"when using the device on e-Series robots.
This is particularly annoyingbecause the robot set its protection mode and you need to restart it every
time the error triggers.
8.8.2 Solution
First of all, check your installed URCap version and update it to the last available on our website (see the
above link) if required.
This may be enough to solve the problem if you have a hardware compliant device. In such a case, please
flag this post as helpful and enjoy our device from now on.
On the other hand, old devices miss a hardware fix that cause the fault in e-Series robots.
If you have updated the URCap, but theC740A0error still appears on your Teach Pendant, you have two
possible solutions:
Get rid of this problem using an external 24V isolated power supply — e.g.http://www.deltapsu.com/
products/din-rail-power-supply/DRC-24V60W1AZ—instead of the UR Control Box.
Raise a
"Service Request"
in our portal with at least the following details at our help desk portal:
The device serial number;
The robot system type and software version;
The installed qbrobotics URCap version;
And wait for a response.
If you are suitable for upgrading we will do our best to ensure that the assistance goes as quickly and
as smoothly as possible.
NOTE:
CB-Series are not affected by this problem.
Anyway, we recommend to update the URCap to the last version available. You can find it in
our download section at the bottom of the qb SoftHand page
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WARNING:
Be aware that depending on the environment, the power supply needs also to filter out
potential electrical noise.
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