Alimak OSD 5 User manual

Users manual
ALIMAK OSD 5
Original instructions

Overload Sensing Device
type OSD 5
User’s Manual
Manufacturing No.: Year: Part No. 9081 804 - 010 I
2019 - 10 - 31
This manual is only applicable if the manufacturing number indicated below corresponds to the manufacturing number stamped on the
identification sign of the equipment. Where there is a conflict contact Your ALIMAK representative.
Valid mainly for OSD software version OSD-5 1.09 and later versions!

Document revision:
Rev Date By Comments Approved by
– 2014-06-18 JoLu Created
A 2014-08-28 JoLu
B 2016-02-02 JoLu Updated for v 1.05
C 2016-03-15 JoLu Quick Guide
D 2016-06-08 JoLu Updated with "Func" page 3, 6 and 8
E 2017-02-07 JoLu Updated with Extra functions. Edits of setup.
F 2017-11-08 JoLu Min weight 400 kg, 30 % full load
G 2018-11-06 JaSv Added a new front and back page with
an updated Alimak-logo.
H 2019-06-28 JoLu Updated for measuring trailing cable
weight. Software update v.1.09
This manual contains information protected by copyright and intellectual property laws. No part of the manual may be copied or
transmitted, in whole or in part. Pictures are illustrative only and do not necessarily show the configuration of products on the
market at a given point in time. Products must be used in conformity with safe practice and applicable statues, regulations, codes
and ordinances. Specifications of products and equipment shown herein are subject to change without notice.

– 1 –
CONTENT
Overload Sensing System..................................................3
Calibration mode – System Set up.....................................5
Calibration mode – Zero Calibration...................................6
Calibration mode – Load Calibration ..................................7
Calibration mode – Load Calibration with default values ...8
Work mode – View current system parameters..................9
Work mode – System test and Zero functions..................10
Software Update............................................................... 11
Failsafe mode................................................................... 11
Relay function................................................................... 11
Trailing Cable Compensation ........................................... 11
Verification........................................................................12
Extra functions..................................................................12
Function information.........................................................12
Connection difference between OSD 4 and OSD 5 ......... 13
Debug information ............................................................16
Circuit diagram industrial lift relay control.........................17
Circuit diagram industrial lift ALC II...................................17
Circuit diagram construction hoist relay control................18
Circuit diagram construction hoist ALC II..........................18
Signs.................................................................................21

– 2 –

Optional Overload Sensing System
The hoist can be equipped with an overload sensing
system, OSD 5. The system indicates when the car is fully
loaded and prevent operation in an overload condition.
Load cells are built into the pull rods connecting the
machinery to the car structure.
When the rated load is exceeded the control circuit will be
switched off to prevent the use of the hoist. At the same
time a red LED light is activated.
When an ALC is installed, fault code F4 will be displayed
in case of overload.
Note that software of at least version 3.50 must be used
for ALCII functionality.
If software is older than version 3.50 on ALCII, it must be
connected as relay control, and not as CAN.
Read more on page 10.
Indication light ”Overload” in car
Signals from the load cells are transferred
to the OSD 5 amplifier located in M-panel.
Art.No. 3002 121-080
Gearbox rear side
Pull rod
Load cell
OSD 5 Overload Sensing System
– 3 –

Setting of Payload and Alarm Limits
Payload 400 kg – 30000 kg
Overload (R1) 100 – 120 %
Full load (R2) 30 – 100 %
Underload (R3) Absolute values cannot be less than hysteresis (Hst)
Hysteresis (Hst) Can not be less than 75 kg and not more than 10 % of payload,
if the hysteresis is bigger than 80 kg
Load Calibration 50 – 120 %
Trailing cable compensation
Cable weight can be set between 0,9 - 4,8 kg/m
Maximum compensation is 250 kg for each load cell or 10 kg/m.
Quick guide for OSD 5 settings
Standard values:
Payload 1000 kg
Overload 1100 kg
Full load 900 kg
Setting of Zero Calibration value ZERO
Empty car.
Prog. + Zero
Zero
Cal.
Counts down to 0 on the display and weights.
Setting of Load Calibration value LOAD
Load at least 50 % of payload. To get the best result load 100 % of
payload.
Prog. + Zero
Load
Cal.
Set weight, for example payload 800 kg
Zero till 8
Load
Load 800 on the display
Cal.
Counts down to 0 on the display and weights.
– 4 –

To set System parameters for OSD 5,
press the "Prog." and (+) "Zero" buttons.
Alarm limits can be set according to separate table.
Finish by pressing the "Prog." button or wait for 10
seconds.
Use the "Cal." button to enter the System Menu.
Use the "Cal." button to cycle through parameter(s) to be adjusted.
The example shows how to adjust the Lift capacity from 1000 kg to
2000 kg.
Example:
OSD 5 Calibration mode – System Set up
Use the “Cal.” button to enter the system menu.
Cycle through to select the parameter(s) to be adjusted,
using the "Cal." button.
Use the "Zero" button to re-set the displayed value to zero.
The first digit is increased by pressing the "Zero" button.
Use the "Load" button to select the second, third and
fourth digit respectively.
If required, adjust the second, third and fourth digit by
using the "Zero" button.
When the correct value has been set – cycle through to
the next parameter or return to the Weight display using
the "Cal." button.
Note: To ensure ALL changed parameters are stored,
the operator MUST tab through all the parameters
before returning to the Weight display.
– 5 –

To start Zero Calibration press the "Prog."
and "Zero" buttons.
Note: The lift/hoist must be empty
(no load).
Zero Calibration: Activate the Zero Calibration menu by pressing the
"Zero" button.
Press the “Cal.” button and the display counts down from 10 to 1. This
allows time for the operator to leave the car to ensure the lift/hoist car
is empty, without load.
On return to display function the "Zero" point is automatically
calibrated and stored.
If no changes are made in Menu mode, the overload sensing system
will automatically return to Weight mode after 10 seconds.
OSD 5 Calibration mode – Zero Calibration
– 6 –