220 VAC, 50/60 Hertz, 250 VDC and other power
inputs are available. The input is protected by a fuse.
Safety Features
Controlling heavy industrial equipment requires that the
remote control system be reliable with built-in safety
features. Each transmission goes through several checks
to insure that the information being received is error free.
The safety interlocks for the crane's Main Line Contactor
(MLC) consist of the operate (OPR) and operate inhibit
(OPI) relays. These relays are controlled by the
microprocessor and by a hardware circuit. Further, one
relay has normally open contacts while the other has
normally closed contacts. This provides three levels of
safety in controlling the Main Contactor for the crane.
Over 5 million combinations of frequencies and address
codes means that no two systems will ever be produced
with the same frequency and address code, thereby
insuring that no transmitter will ever be able to
unintentionally control another crane.
Diagnostics
Even though the receivers are technically very complex,
it is exceptionally easy to maintain and troubleshoot.
Diagnostic LEDs plus an LED for each output relay are
all that are required to isolate a problem should one
occur. Both the transmitter and receiver assembly monitor
and indicate their status on a continuous basis.
1.4 OPTIONS
The following options are available on all receivers:
First Come-First Serve.
Pitch and Catch.
SECTION 1: SYSTEM DESCRIPTION
1.2
The following options are only available on the
21R22 receiver:
Stepless (proportional) Outputs:
External Hard Wire Inputs.
Extra Relay Outputs.
Pilot Lights.
Intermediate Relay Panel.
DC Power Supply.
Transfer Switch.
Refer to Section 6 for more information on the options.
Need help?
Do you have a question about the Command Pro 21T10 and is the answer not in the manual?
Questions and answers