Grandview GPCK-MB User Manual
Page 7
12
6
H
-
4
0
0
m
m
114m m
p
ro
b
ab
ly
6
0
m
m
H
H-C+ 60
M
N
Model
Size(unit:mm)
OxC9
OxE9
OxC9
OxE9
OxC9
OxE9
2. The bracket is a part of the projector lift combined with the hanger, screw (M10), and nut (M10) to be
following mechanism. Cut the length of the screw (M10) for H-C+60mm, where H is the distance of the
concrete ceiling and the ceiling surface (measured in the last step). C is the height of the frame as shown in the
specifications table.
Cotter Pin
Hanger
M10 Nut
M10 Threaded Rod
M10 Locknut
Figure 3
3. Ensure the distance M and N is according to figure 4 and the model of the table below. Install the brackets to
the ceiling via screws as shown in figure 5.
(Note: due to product updates, sizes and specifications are subject to change at any time)
Figure 4
Figure 5
Grandview Projector Lift RS485 Setting Address
1、RS-485, RS-232 input
A continuous data sends two times，each time interval of 200ms
3 bytes of studying address directive are custom setting address directive
Central Control Format Agreement
1)Communication Agreement Setting
Data Bits: 8 bits
Start Bits: 1 bit
Stop Bits: 1 bit
Baud Ratio: 2400
Common directives are in chip of projector lift and can not be changed
2) Directive for retracting：
3) Directive for stopping：
4) Directive for extending：
5) Studying address directive:
2. Directive Composing Instruction:
oxFF is only bit; ox stands for hexadecimal system; FF is effective bit; a directive is composed by 5 bits.
Studying directive oxFF oxXX oxXX oxXX oxAA
oxFF and oxAA can not be changed, but oxXX oxXX oxXX can be changed to any 16 hex data, which stand for
address bit
The changed working directive
1) Directive for retracting:
2) Directive for stopping:
3) Directive for extending:
4) Studying address directive:
Example: The studying directive is oxFF ox10 ox11 ox12 oxAA which can be changed to:
5) Directive for retracting:
6) Directive for stopping:
7) Directive for extending:
8) Studying address directive:
3. Learning Directives and Operation
After the power is connected, the learning status will stay for the first 10 seconds. The learning directive is oxFF
oxXX oxXX oxAA. The lift can be used after the learning process is completed, but it cannot be used properly
after the address bit is changed. Tis is because one port can used to control many projector lifts.
Example:
If there is a projector lift A and B with RS-485 ports, in order to control these two lifts simultaneously the
directive oxFF oxEE oxEE oxEE oxDD will be sent out from the port. In order to control these two lifts in different
movements, for example lift A goes down while left B goes up, a common directive cannot be used and must
be separated by an address bit at this time
N
M
GPCK-MB1800
GPCK-MB1000
M
N
560
560
440
440