background image

Name

Description

Index

Value

[Enable Gripper]

Activation of system commands
for easy triggering of movement
commands. A standard configu-
ration is thus loaded into the
parameters and the movement
commands are released.

0x0002

160

[Close Gripper]

With previous release, this com-
mand can initiate a movement of
the gripper jaws in the direction
of "closing".

0x0002

161

[Open Gripper]

With previous release, this com-
mand can initiate a movement of
the gripper jaws in the direction
of "opening".

0x0002

162

Tab. 23: System Commands

10.12

Fault clearance IO-Link

Parameter ‘ErrorNumber’

Diagnostic
message
Hex (Dec)

Device
status

Error

Possible
cause

Remedy

‘Error-
Count’

1)

0x0 (0)

‘Status ok,
device is
ready’

No

0x100 (256)

Outside the
specification

‘Power supply
error’

Actuator

supply not
connected

Cable break

Actuator

supply not
sufficient

Testing the
actuator
supply voltage

Yes

0x101 (257)

Outside of
specification
(drive can no
longer be
moved)

‘Temperature
too high’

Ambient

tempera-
ture too
high

Gripper has

overload

Ensure ade-
quate pressuri-
sation/
cooling/
connection

Yes

0x102 (258)

Outside of
specification
(drive can no
longer be
moved)

‘Temperature
too low’

Ambient tem-
perature too
low

Ensure suffi-
cient operating
temperature

Yes

0x010A
(266)

)

Outside the
specification

‘Actuator
under voltage
during move-
ment’

Actuator

supply
unstable

Line resist-

ance
increased
(faulty
supply
cable)

Power

supply not
sufficiently
designed
for peak
loads,
faulty
supply
cables

Check grip-

ping force,
check
power
supply and
peak load

Manual

acknowl-
edgement
of error
message
necessary

No

0x300 (768)

Outside the
specification

‘ControlWord
not plausible’

Incorrect value
in ‘Control-
Word’

Checking the
value in the
‘ControlWord’

No

0x301 (769)

Outside the
specification

‘GrippingPosi-
tion not plau-
sible’

Incorrect value
in parameter
‘GrippingPosi-
tion’

Check the
parameter
‘GrippingPosi-
tion’

No

0x302 (770)

Outside the
specification

‘GrippingForce
not plausible’

Incorrect value
in parameter
‘GrippingForce’

Check the
parameter
‘GrippingForce’

No

0x304 (772)

Outside the
specification

‘GrippingToler-
ance not plau-
sible’

Incorrect value
in parameter
‘GrippingToler-
ance’

Check the
parameter
‘GrippingToler-
ance’

No

0x305 (773)

2)

Failure

‘Reference
position error’

Gripper has no
reference posi-
tion

Service Festo
SE & Co. KG

Yes

0x306 (774)

Outside the
specification

‘GrippingMode
not plausible’

Incorrect value
in parameter
‘Gripping-
Mode’

Check the
parameter
‘Gripping-
Mode’

No

0x307 (775)

Motion task
cannot be exe-
cuted

‘Drive com-
mand cannot
be executed’

Multiple travel
commands in
the same
direction

Reset ‘Reset-
DirectionFlag’
direction flag
or send move-
ment com-
mand in the
other direction

No

0x308 (776)

Outside the
specification

‘WorkpieceNo
not plausible’

Incorrect value
in parameter
‘WorkpieceNo’

Check the
parameter
‘WorkpieceNo’

No

Diagnostic
message
Hex (Dec)

Device
status

Error

Possible
cause

Remedy

‘Error-
Count’

1)

0x309 (777)

Outside the
specification

‘GrippingPosi-
tion not
latched’

Process data
sent by the
master have
been changed

Transfer of the
changed
parameters by
‘LatchData.’

No

0x30D (781)

Outside the
specification

‘GrippingForce
not latched’

Process data
sent by the
master have
been changed

Transfer of the
changed
parameters by
‘LatchData.’

No

0x30F (783)

Outside the
specification

‘GrippingToler-
ance not
latched’

Process data
sent by the
master have
been changed

Transfer of the
changed
parameters by
‘LatchData.’

No

0x310 (784)

Outside the
specification

‘GrippingMode
not latched’

Process data
sent by the
master have
been changed

Transfer of the
changed
parameters by
‘LatchData.’

No

0x311 (785)

Outside the
specification

‘WorkpieceNo
not latched’

Process data
sent by the
master have
been changed

Transfer of the
changed
parameters by
‘LatchData.’

No

0x312 (786)

Outside the
specification

‘Initial hand-
shake missing’

After a cold
start, a single
data migration
by ‘LatchData’
(‘ControlWord’
= 1) is
required.

Transfer of the
changed
parameters by
‘LatchData.’

No

0x400
(1024)

3)

Failure

‘Gripper
blocked’

Gripper is

difficult to
move

The travel

path of the
grab is
impaired

Restore the

free move-
ment of the
gripper

Service

Festo
SE & Co. KG

Yes

0x406 (1030) Failure

‘System error /
internal error’

Internal
system error

Service Festo
SE & Co. KG

Yes

1) Incrementing the "ErrorCount" parameter for these messages
2) No homing required
3) Acknowledge error with "ResetError"

Tab. 24: "ErrorNumber" parameter

11

Maintenance

11.1

Safety

WARNING

Danger of crushing due to unexpectedly fast-moving loads and unintentional
movements.
• Remove the payload.
• Switch off power to the product.
• Safeguard the power supply from being switched on again unintentionally.

11.2

Cleaning

Clean the product with a soft cloth. Do not use aggressive cleaning agents.
For use with reduced particle emission:

Remove abrasion and contamination from the product on the following
schedule:

Prior to initial commissioning.

Regularly during operation.

11.3

Lubrication

Interval

Maintenance work

After 5 million switching cycles

Grease the guide of the gripper jaws. Permissible lubricating
grease 

è

 www.festo.com/spareparts.

Tab. 25

Cut the lubrication interval by half if one of the following applies:
• High thermal stress
• Heavy contamination
• Proximity of grease-dissolving liquids or vapours

12

Malfunctions

12.1

Diagnostics

LED red ‘Error’

LED green ‘Ready’

Meaning

off

off

IO-Link Supply voltage is not connected

è

 IO-LinkCommunication not active.

off

green light

Actuator ready for operation (Fallback, SIO
Mode)

IO-Link Supply voltage: connected

IO-Link Communication: not active

Actuator supply voltage: connected

flashing red

green light

IO-Link Supply voltage: connected

IO-Link Communication: not active

Actuator supply voltage: not connected

Summary of Contents for EHPS LK Series

Page 1: ...with electrical open loop control technology 4 Additional information Accessories è www festo com catalogue 5 Product overview 5 1 Function The gripper has an integrated servo motor The gripper mechanism converts the rotary motion of the servo motor into a linear motion of the gripper jaws The gripper jaws move towards one another closing or apart opening Gripper fingers are fastened to the grippe...

Page 2: ... to specification IO Link port class B without galvanic isolation between primary and secondary power supply This can lead to malfunction or damage of the IO Link Master and the connected IO Link devices Connect pin 3 L and pin 5 N24 externally to avoid compensating currents via the gripper When installing further IO Link devices on the master note that the actuator supply can only be switched off...

Page 3: ...example Length byte Format 0x0010 0 Vendor Name Festo SE Co KG 64 String 0x0011 0 Vendor Text èwww festo com 64 String 0x0012 0 Product Name EHPS 16 A LK EHPS 20 A LK EHPS 25 A LK 64 String 0x0013 0 Product ID 8103809 8103810 8103811 64 String 0x0014 0 Product Text parallel gripper 64 String 0x0015 0 Serial Number KNP00002 16 String 0x0016 0 Hardware Revi sion REV01 64 String 0x0017 0 Firmware Rev...

Page 4: ...e UIntegerT16 Tab 13 Process data IN Bit 31 16 15 0 Meaning MSB LSB MSB LSB Process data ErrorNumber ActualPosition Value range 0 65535 0 max jaw stroke EHPS 16 0 2150 EHPS 20 0 2750 EHPS 25 0 3350 Index 0x0028 Data type UIntegerT16 Tab 14 Process data IN 10 7 1 Description StatusWord Ready bit 38 Active as soon as the gripper is raised It can also be used to check a byte swap OpenedPositionFlag b...

Page 5: ...ge in speed Force level Decimal value Force value Invalid 0 Level 1 1 approx 50 Level 2 2 approx 70 Level 3 3 approx 85 Level 4 4 approx 100 Tab 18 GrippingForce parameter The speed has an effect on the gripping force The gripping force is not linearly adjustable The gripping position and gripping force are not readjusted The design of the gripper jaws has a major influence on the gripping force t...

Page 6: ...t value in parameter WorkpieceNo Check the parameter WorkpieceNo No Diagnostic message Hex Dec Device status Error Possible cause Remedy Error Count 1 0x309 777 Outside the specification GrippingPosi tion not latched Process data sent by the master have been changed Transfer of the changed parameters by LatchData No 0x30D 781 Outside the specification GrippingForce not latched Process data sent by...

Page 7: ...27 Fault clearance Fig 7 Resolve jamming of gripper jaws 1 Remove the plug screw 2 Rotate the worm shaft underneath using the hex wrench until the jamming is resolved Anti clockwise external gripping Clockwise internal gripping 3 Retighten plug screw EHPS 16 20 25 Hex wrench ß 1 5 ß 1 5 ß 2 Tightening torque for plug screw Nm 0 6 0 6 2 8 12 3 Repair Send product to the Festo repair service for rep...

Page 8: ...ertical Force class 1 Force class 2 Force class 3 Force class 4 Fig 10 EHPS 16 external gripping lever arm horizontal Force class 1 Force class 2 Force class 3 Force class 4 Fig 11 EHPS 16 internal gripping lever arm horizontal Force class 1 Force class 2 Force class 3 Force class 4 Fig 12 EHPS 20 external gripping lever arm vertical Force class 1 Force class 2 Force class 3 Force class 4 Fig 13 E...

Page 9: ...s 1 Force class 2 Force class 3 Force class 4 Fig 17 EHPS 25 internal gripping lever arm vertical Force class 1 Force class 2 Force class 3 Force class 4 Fig 18 EHPS 25 external gripping lever arm horizontal Force class 1 Force class 2 Force class 3 Force class 4 Fig 19 EHPS 25 internal gripping lever arm horizontal Force class 1 Force class 2 Force class 3 Force class 4 ...

Reviews: