R&M Materials Handling HOIST MONITORS - Manual (Page 12)

R&M Materials Handling, Inc.
4501 Gateway Boulevard
Springfield, Ohio 45502
P.: (937) 328-5100
FAX: (937) 325-5319
12/105
R&M Materials Handling, Inc. reserves the right to alter or amend the above information without notice.
Service-state means that a limit value set for the next service has been expired. This is indicated to the
crane user, but the hoist can still be run normally.
Fault-state means that a serious problem has been detected. Running the hoist is restricted.
3.3 Display information
3.3.1 Tare load / actual load mode
Tare load can be used when the crane is operated with a load-handling device, such as a grab or
spreader. When no load-handling device is used, the tare load must be set to zero with empty hook.
Considering a grab crane as example the table explains the differences between tare load and actual
load. Press UP or DOWN button to toggle between tare and actual load.
Display information
Hoist application Description Orange LED ON
TARE LOAD Orange LED OFF
ACTUAL LOAD
10t grab without grab
Only empty ropes or empty
hook block. No load in the
crane.
Displayed value depends on last
zeroing.
0.2 t
or zeroing press ESC for three sec.
Display shows now
0.0 t
0.2 t
10 t grab crane
A grab is attached to the
ropes. Grab weight is 5 tons.
The grab is empty and not
loaded.
5.0 t
Press ESC button for three sec.
Display shows
0.0 t
5.2 t
10 t grab crane
The grab is loaded with 5 tons
payload.
Display shows
5.0 t
This is the payload of the load-
handling device.
The payload + grap weight
10.2 t
10 t grab crane without grab
Only empty ropes or empty
hook block. No load in the
crane.
Last zeroing was made with 5 tons
attached. Display shows
-4.8 t
Press ESC button for three sec.
Display shows
0.0 t
0.2 t
When the display is in the load mode, the load can be tared (value set to zero) by pushing the ESC
button about three seconds and after that display shifts into the tare load mode.
Tare function is made for each hoist individually; means tare command is not transferred to other
units via CAN bus.