Category: Potain HUP 32/27

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Hup loses functions, drives shut down

Hup loses slew function sporadically, will sometime cause other drives to shut down with Cof fault. This is often an error with the slew motor encoder failing or shorting out. The drive sends a stop command AFE1 or 5091 to power down the drive which then shuts down the other drives.


The drive will often fault and shut down before registering a fault in the CCS. Check the fault history of the ACS380. If an encoder fault is present like 7301 – Motor Speed not detected,
Replace the motor encoder
If an encoder isn’t available you can remove the encoder wiring from the drive and it will default to estimated speed.

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Teach In for New Version of Hup

To begin teach in, you must first choose the target (H0, H1, 10, 20) and then you can set the radius.

You must also set the minimum AND the maximum radius.

To set “0” load, you must lower the hook past where the hoist rope is in the middle of the drum; and then you hoist up to where the hoist rope is in the middle of the drum.

You are also required to set the “known” load.

If you do not set the 3 dead turns, an envelope will show in the upper left corner and the message will be that the 3 dead turns has not been set.

The newest version of the CCS manual is here

CCS V1.13-ENU

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Hup won’t slew after powered off for 10 min

Hup had zoning and slew encoders turned on. Encoders would pair, Zero slew angle would accept and zones worked after being set. Normal operation would resume, but the crane would not slew after being shut down at the base (CCT/SCM computers powered off) and restarted after 10 minutes. Scrolling through the menu zero angle wasn’t present. Operator reset zero angle and slew movement was regained until crane was powered off at the base.

1)Turn off Slewing encoder option, This will tell the CCT to not look at the encoder, the crane regained slew.
2) Check slewing encoders for faults. In this case, the main slewing encoder would flash a single red light.
3) replace slewing encoders and pair
4) turn on slewing encoder option
5)Set zero angle and zones

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Hup Slew limit

On the Hup cranes we have slewing limit switches. We also have the option slewing encoders and the collector option.

• The limit switches (S610S and S615S) work only when the options are not enabled (angle, Top Zone and collector)

• If the top zone option is enabled we must also enable the angle option. When the 0° angle is enabled, the slewing movement cuts will be made by the encoders (B260N and B261N) and from 0°.

• If the collector option is activated, we bypass the limit switches, so there is no more cutting of the three turns in the slewing

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Crane load indication accuracy

1917.46(a)(1)(ii)

The accuracy of the load indicating device, weight-moment device, or overload protection device shall be such that any indicated load (or limit), including the sum of actual weight hoisted and additional equipment or “add ons” such as slings, sensors, blocks, etc., is within the range between 95 percent (5 percent underload) and 110 percent (10 percent overload) of the actual true total load. Such accuracy shall be required over the range of daily operating variables reasonably anticipated under the conditions of use.

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Hup will not hoist SAFF on drive

Operator lowered the block down, and then the hoist drive stopped.  Could swing and trolley, but no hoist or lower function.  Drive displayed SAFF.  This fault is not in the Hup manual.  The fault code app shows the following.

Had the operator verify that the CanOpen card was installed all the way.  Had the operator switch ports on the CanOpen card, and the crane began working.  Went to the crane and replaced the CanOpen card, and verified both ports are working