Herman Miller Nevi User manual

Contents Page
Leg & Foot 3
E-Beam 3
Worktop Support 3
Work Surface 4
Control Box & Controller Switch 4
Cable Tray & Bracket 5
Umbilical 6
Assembly Tools 1
Parts Included 2
Screen & Screen Bracket 6
Cable Routing 7
General Notes & Trouble Shooting 8
Display Guide 9
Click Codes of Controller 10
Nevi
Contents

Assembly tools
1
Hex Bit - 5 mm Power Driver Spirit Level
Hex Bit - 4 mm
54
Hex Bit - 8 mm
8
Open Spanner
9

Parts Included
A
LEG
B
Foot c
Glide
R
Screen
Bracket
D
M10 x 16
Soc Head
Screw
E
E-Beam
G
M8 x 14
Button Head
Soc Screw
F
Worktop
Support
J
M6 x 16
SOC FLANGE
Head Screw
S
Screen
H
Work Surface
K
Control Box
L
M5 x 20
Pan Head
Spax Screw
N
Cable Tray
Bracket
P
Cable Tray
Q
Umbilical Riser
2
M
Controller
Switch

3
B
A
DC
8
M10x16
Leg & Foot
DWEUL4S
DWEUT.08G
E-Beam
DWEUB.
A
E
A
E
Worktop Support
DWEUW.08
F
G
5
M8x14
9
Open
Spanner
E-Beam
DWEUB.

H
J
4
M6x16
Work Surface
DWETASXX.
DWETAWXX.
F
Control Box
DWEUCE4B.
Controller Switch
K
M
L
L
DWEUCE4B.
4
Pz2
M5 x 20
Pan Head SPAX
Pz2
M5 x 20
Pan Head SPAX
With Insert
M2M fixing With out Insert
Direct fixing
4
M5 x 20
Pan Head SPAX

Cable Tray & Bracket
1
2
3
4
5
N
P
H
L
L
H
Pz2
M5 x 20
Pan Head SPAX
Pz2
M5 x 20
Pan Head SPAX
DWEWTS
DWEUCE4B.
5

Umbilical
RY3WU4.
Q
L
Q
R
L
R
L
S
S
Screen & Screen Bracket
DWEVNNS.
RY3SM.
6
S
Pz2
M5 x 20
Pan Head SPAX
Pz2
M5 x 20
Pan Head SPAX
Pz2
M5 x 20
Pan Head SPAX

Cable Routing
Q
M
K
Main Power
Motor 2
Motor 1
Control switch
KM2
M1
D2
D1
Main
Power Motor 1
Motor 2
Control
Switch
Up
Down
Control Box
DWEUCE4B.
Controller Switch
DWEUCE4B.
DWEUCE4B.
7

Troubleshooting
Notes
General notes on Electric Sit stand desk
Nevi’s electrically operated desks allows for continuous height adjustment of the Worksurface
from 650mm-1250mm above floor level at a speed of 38mm per second.
The desk must be connected to a suitable mains (240)voltage supply using a Herman Miller
power entry cord appropriate to the country of use.
Any cables that rise and fall with the work surface must be of sufficient length to ensure that
no strain is placed upon the cables or their connectors to other apparatus. Similarly the cables
must not interfere with the operation of the desk.
IMPORTANT: PLEASE ENSURE THAT THERE IS NO OBSTRUCTION TO THE MOVEMENT OF THE
MECHANISM OR WORKSURFACE.
Nevi should be installed with a minimum safety gap of 25mm between each of the non-user
edges and any adjacent hard surface i.e.: building walls, storage units, other desks etc.
throughout the range of the user adaptable products. Screen brackets are designed to ensure
there is a safety gap.
The electronic mechanism is designed to European safety standards with a cut out to ensure
the motors do not over heat. The desk will move freely up and down for 2mins at which time
the operation will cease and the mechanism will require a full 20mins rest time before
continuing. If the mechanism is pressed after only 10mins rest the desk will work for only 1min
continuous use and so on.
Fault Cause Repair
Desk does not
move
No power supply Plug in mains cable;
if applicable, check the plug connector on the
controller.
No connection or loose
connection to the
drives/side panels
Check, if applicable fix plug connector connection
from
the motor cable to the controller and the drives.
No connection to the
hand-switch
Check, plug-in plug connector to the controller.
Max. lifting force
exceeded
Reduce weight.
Max. operating time
exceeded
The controller will independently reactivate
after approx. 3 minutes.
ATTENTION!
The max. travel time of 2 minutes is only available
after
an idle time of at least 18 minutes.
Drive defective Please contact Customer Service.
Controller defective Please contact Customer Service.
Desk only lowers
slowly
Controller expects a
reinitialisation
See Section 5 Reinitialization.
Desk only moves
slowly
Max. lifting force
exceeded
Reduce weight.
Desk only moves
briefly on one side
and then remains
stationary
No connection or loose
connection to the
drives/side panels
Check, if applicable fix plug connector connection
from
the motor cable to the controller and the drives.
Drive defective Please contact Customer Service.
Table 1: Behaviour in case of failure
8

Display
Description
Remedy
Short
-circuit motor 1
Pull the mains plug. Correct the external short
-
circuit,
check the cables to the motors for damage
or connect the correct motor to the relevant socket.
Start the controller again. If required, carry out a
reference movement.
Short
-circuit motor 2
Cable of motor 1 was pulled
Check the plug/cable connection to the motors and
carry out a reference movement.
Cable of motor 2 was pulled
Reduce weight.
No pulses measurable
Pull the mains plug. Correct the external short
-
circuit,
check the cables to the motors for damage
or connect the correct motor to the relevant socket.
Start the controller again. If required, carry out a
reference movement.
System protection/ System pause
The controller monitors the
power
-on duration (time-
controlled) and its maximum
temperature. One of the two
values was exceeded.
Wait till the controller has cooled and the display
“SP” goes off. There is now clearance for
movement for 20s.
Only after 18 minutes will the table move the full 2
minutes. ATTENTION! The power
-on duration is
calculated even if there is no mains voltage applied.
Collision detected
Overcurrent at motor 1
Collision?
If required, rectify; max. load exceeded; remove the
load from the table.
Motor positions too much at variance; if required,
reduce the load on the table. Carry out a reference
movement.
Overcurrent at motor 2
The motors have lost sync.
Motor positions too much at variance; if required,
reduce the load on the table. Carry out a reference
movement.
The controllers are out of sync
(cascading).
Check whether the cascading cable between the
controllers is correctly inserted and that there is a
mains cable in both controllers.
Carry out a reference movement.
Error messages in the display of the hand switch (Optional)
Display
Description
Remedy
Sensor module error
Further movements are possible, but without
anti
-collision protection. Inspect the sensor
module.
Contradictory operations
on two different controller
devices.
Stop operation at all the available controller
devices.
The “Up” key on the hand
switch is stuck.
Replace hand switch.
The “Down” key on the hand
switch is stuck.
Replace hand switch.
Voltage too small
Pull the mains plug. Contact Customer
Service. Mains or power supply fluctuations?
Voltage too high
Discrepancy in the
parameters
The parameters in one controller do not
match the number of legs or the parameters
are not the same in the two controllers.
Contact Customer Service and have the
parameter set of the table checked.
Reference movement
required.
Carry out a reference movement.
The table moves
Table 2: Error descriptions (Engine = drive in the mounting leg or in the side frame)
If the error cannot be repaired as described
above, pull the mains plug, wait for several
minutes and try to reinitialise the desk.
If the error continues to occur, unplug the desk
from the mains and contact customer service.
This error list refers to firmware A1.2 and higher.
NOTE
If there is a power failure during the
height adjustment or if the mains
cable is pulled, a manual reset
might be necessary.
9

Number
of click
-clacks
When
Status Information
1x
If the mains is on
Normal operation: The system works without
any problem.
1x
Up key pressed
Reset: Initialisation movement required
7x
During the movement, the
connection to a drive is lost.
Error: Table cannot be moved any more
2x
Setting a container
- or shelf-stop
Confirmation of the limit position having been
successfully saved
(only with the simple hand switch without a
display)
4x
Delete container
- or shelf-stop.
Confirmation of the limit position having been
successfully deleted.
(only with the simple hand switch without a
display)
7x
Table moves at an angle
Error: The drives do not have the same height,
initialisation movement required
As soon as the motor controller is supplied with
power, the controller uses the integrated relay
to acoustically inform the user about the system
status and the reason for the most recent shutdown. Click = Relay actuated, Clack = Relay dropping
Click codes of the Controller
10