Installation, Operator’s & Calibration Manual
Radio Anti-Two-Block
©PAT Rev. F 03/26/03
190136_f
14
All LEDs are located inside the receiver box.
Problem
Cause
Solution
No LED’s light on
receiver
No power to receiver
Make sure the module is getting power from the crane.
Check wiring.
Ensure correct polarity of the power.
Replace OEM receiver
Crane functions
locked out all the
time
No power to the
receiver
Check LED lights on module.
Make sure the module is getting power from the crane.
Check wiring.
Ensure correct polarity of the power.
Replace OEM receiver
Crane functions
locked out all the
time
Incorrect wiring
Check for power to lockout device.
Crane functions
locked out all the
time
No reception.
Check if the green Link LED is on. The green Link1 LED
must be on for single hoist operation. Link1 and Link2 must
be on for 2-hoist operation.
See Link 1 LED troubleshooting.
Crane functions
locked out all the
time
Fault in receiver
module.
Check relay output voltage from receiver to lockouts
Transmitter LED
does not flash
Pull switch wire rope. Red LED will flash ~each 2 sec.
Replace batteries.
Replace transmitter.
Link 1 LED not on
ID1 not set.
Set the ID of the transmitter. See Section 5, Setup.
Link 1 LED not on
Poor communication
caused by
interference.
Remove potential interference sources from the area.
Mount the receiver in a different location.
Link 1 LED not on
Object blocking the
transmission path.
Improper location of the receiver. Move the receiver to a
line of site location.
Check antenna
Link 1 LED not on
Fault in the main
transmitter.
Pull main switch wire rope.
Replace batteries.
Replace transmitter.
Link 2 LED not on
ID2 not set.
Set the ID of the transmitter. See Section 5, Setup.
Link 2 LED not on
Poor Communication
caused by
interference.
Remove potential interference sources from the area.
Mount the receiver in a different location.
Link 2 LED not on
Object blocking the
transmission path.
Improper location of the receiver. Move the receiver to a
line of site location.
Check antenna.
Link 2 LED not on
Fault in the aux
transmitter.
Pull main switch wire rope.
Replace batteries.
Replace transmitter.
LO BAT1 or LO
BAT2 LED off
No or low batteries in
the transmitter.
Replace batteries.
