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6.3.- SYSTEMS WITH TWO MASTER TRANSMITTERS
RECEIVER 1
RECEIVER 2
F1
F2
F1
F2
ID0
ID1
ID1
ID0
F2
F1
F1
F2
ID0
ID1
MASTER II
MASTER I
In Master/Master systems both transmitters have a “1 / 1+2 / 2” selector and a release pushbutton
“R”.
When a tandem operation is needed, operator that is to have control of both receivers/cranes must
require operator of the other transmitter to release his receiver/crane.
I.e. If the operator of the Master I transmitter is to have control of both receivers/cranes, the operator
of the Master II transmitter must then start his crane and then depress “R” and “Start” pushbuttons
simultaneously. The receiver/crane 2 will then shut down and wait ready to accept transmission from
any of the two transmitters. Next, operator holding the master I transmitter must then start his own
crane, select the mode he wants to work in, “2” to work with the receiver/crane 2 or “1+2” to work in
tandem with both receivers/cranes, and then press and hold “Start” pushbutton until the requested
receiver/crane powers up.
Refer to page 10 for LED indications
Once tandem or receiver/crane 2 mode operation from the master I transmitter is complete,
the operator must then release the receiver/crane or both receivers/cranes he wants to give up
control off. In order to do this, he must select 1, 2, or 1+2 on the master I transmitter and
press “start” to validate the selection. Once he has control of the receiver/crane or both
receivers/cranes he must then depress “R” and “Start” pushbuttons simultaneous. The
receiver/crane or both receivers/cranes will then shut down and be ready for operation from
the other transmitter.
