Download Overload Sensing Device type OSD 4 User`s Manual

Overload Sensing Device
type OSD 4
User’s Manual
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.
Manufacturing No.:
Year:
Part No. 9081539 - 1 01
2004 - 10 - 27
Photographs and drawings are illustrative only and do not necessarily show the design of the products on the market at any given point in time.
The products must be used in conformity with applicable practice and safety regulations. Specifications of the products and equipment
presented herein are subject to change without notice.
Optional Overload Sensing System
The hoist can be equipped with a overload sensing system. The
system indicates when the car is fully loaded and prevent
operation in an overload condition.
Loadcells are built into the pull rods connecting the machinery
to the car structure.
Gearbox rear side
Pull rod
Load cell
Signals from the load cells are transferred
to the OSD 4 amplifier located in M-panel
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 lights.
Fault code F4 will be displayed where ALC floor call selecting
system occurs.
Indication light ”Overload” in car
OSD 4 Calibration mode - System set up.
Cal.
System
Menu
The instruments “system parameters” can be
accessed and adjusted by switching the
“service switch” to the “Cal.” position.
PC
Cal.
Load
Cal.
Zero
Work
Elevator Capacity
1000 kg
*
Relay 1
Cal.
Use the
Relay 1
Alarm capacity (Kg)
*
Using the
adjusted.
button to enter the system menu.
Cal.
button Tab down to select the parameter(s) to be
The example shows now to adjust the Elevator capacity from 1000Kg
to 2000Kg.
Relay 2
Example:
Relay 2
Alarm capacity (Kg)
Cal.
Cal.
System
Menu
Elevator Capacity
1000 kg
PC
Cal.
Load
Zero
*
Cal.
Work
*
Zero
Use the
Relay 3
Zeros
The display
*
Relay 3
Alarm capacity (Kg)
*
Zero
Increases
unit digit
button to enter the system menu.
And Tab down to select the parameter(s) to be
adjusted, using the Cal. button. (To get “-” negative
value press Load
button twice).
Use the
Reset value (Kg)
from overload
Cal.
Zero
button to re-set the displayed value.
The first digit is increased by using the
Zero
Increases
unit digit
Reset Value
30kg
*
*
Time setting
for automatic re-cal.
Load
Adds
second digit
Load
Time period
300 sec.
*
Load
Use the
fourth digits.
Adds
Third digit
*
Load
Zero
button to select the second, third and
These second, third and fourth digits can be adjusted
by using the Zero button if required.
When the req.
value has been set Tab through
to the next parameter or back to the weight display
using the Cal. button.
Note: To ensure ALL changed parameters are stored
the operator MUST Tab through all the parameters
returning to the weight display.
At end of the operation the “service switch” should be
returned to the “work” position.
Adds
fourth digit
Re-zero range
+/- Kg
PC
Cal.
*
button.
Cal.
Load
Zero
Cal.
Work
OSD 4 Calibration mode - Zero calibration.
Zero
Zero Calibration
Menu
To begin the zero calibration switch
the “service switch” from the “work”
position to the “Cal” position.
Note: The lift/hoist must be empty
(no load).
PC
*
Cal.
Load
Zero
Cal.
Work
Cal.
System count
begins
*
And counts down
10 to 0
Zero Calibration - Activate the “zero calibration menu” by
pressing the Zero button.
Cal.
Simply press the
button and the instrument counts down
from 10 to 1 this allows time for the operator to ensure the
elevator cabin is empty.
*
On return to display function the “zero” point is automatically
calibrated and stored.
Note: Return the instrument to the work mode by switching the
“service switch” to the “work” position.
*
PC
*
Cal.
Load
Zero
Cal.
Work
OSD 4 Calibration mode - Load calibration.
Load
Zero Calibration
Menu
To begin the Load calibration switch
the “service switch” from the “work”
position to the “Cal” position.
PC
*
Cal.
Load
Zero
Cal.
Work
Cal.
Known weight
value
***
Cal.
System count
begins
Load Calibration - Activate the “load calibration menu” by
pressing the Load button.
Use the Cal. button to display the “known” weight value and adjust
to the required calibration weight using both the Zero button and
the Load button.
Zero
*
And counts down
10 to 0
*
button to re-zero the “known” weight value
* * Note: Use the
and to increase the digit(s) value, use the Load button to select
additional digits as required.
Cal.
Simply press the
button and the instrument counts down from
10 to 0 this allows time for the operator to ensure that the correct
known weight has been entered.
The “known” weight is displayed and stored.
Note: Return the instrument to the work mode by switching the
“service switch” to the “work” position.
PC
*
Cal.
Load
Zero
Cal.
Work
OSD 4 Work mode - System Interrogation.
System
Menu
PC
Load
Cal.
Zero
Cal.
Cal.
Work
Elevator Capacity
1000 kg
*
Relay 1
In operation the OSD 4 “service switch”
remains in the “work” position.
The programming can be interrogated via
the front panel as the flowchart example
shows.
Relay 1
Alarm capacity (Kg)
*
Relay 2
Relay 2
Alarm capacity (Kg)
Use the Cal. button to Tab down through
the system parameters.
*
Relay 3
*
Note: Functions showing
can be
altered via selecting the “calibration mode”.
The instrument will revert back to the
weighing function if no changes are made
after 10 seconds.
Relay 3
Alarm capacity (Kg)
*
Reset value (Kg)
from overload
Reset Value
30kg
*
Time setting
for automatic re-cal.
Time period
300 sec.
*
Re-zero range
+/- Kg
*
OSD 4 Work mode - System test and Zero functions
Zero function
System test
PC
Zero
Cal.
Load
Zero
Cal.
Load
Work
System count
begins
System test
begins
*
*
And counts down
10 to 0
LED Display is
Activated
Relay 3
Switches On
*
*
Relay 2
Switches On
Relay 1
Switches On
*
*
Relay 1
Switches Off
The instrument
returns to Zero
**
Relay 2
Switches Off
*
*
PC
Cal.
Load
Zero
Cal.
Relay 3
Switches Off
Work
Loadcell
LED test
*
Zero
button and the
Zero function - Simply press the
instrument counts down from 10 to 1 this allows time for the
operator to ensure the elevator cabin is empty.
The instrument automatically re-sets the system zero.
Display returns
weighing mode
* * Note: If the error offset is greater than the system “Re-zero
range” then the instrument will not re-set the error offset.
This “Re-zero” range can be configured by the user in the
“Calibration mode” (see calibration mode - system set up).
Load
System test - Activate the “system test” by pressing the
button, this self diagnostic function
activates in sequence the instruments hardware components to ensure they are operational.