ESP 19
4-22
Upper Control Mode
• No Power To The Joystick: No Communication
-There is power on the main controller, but not on the joystick.
1. When in Upper Control Mode, LED “UP CTRL SEL” should be ON.
If it’s OFF, check the Upper/Lower selector switch and make sure it’s
set to Upper Control.
2. Make sure the joystick is connected to EASI POS and EASI NEG
terminals of the main controller.
3. Make sure E-STOP switch on the joystick is OFF.
4. Make sure LED’s EASI-TXD and RXD on the main controller are
blinking at high frequency. If not, Check Fuse F1 located on the main
controller. If all of the above are O.K, the joystick may be faulty.
•
Joystick Does Not Drive The Motor
-Moving the joystick forward or reverse does not drive the machine.
1. Check if there is communication between the main controller and the
joystick. If L1 and L2 LED’s on the joystick are not blinking rapidly,
there is no communication. Refer to the previous step to troubleshoot
"No Communication".
2. L1 and L2 on the joystick are blinking rapidly, but unit still does not
drive, then:
a. Press "ENABLE" on the joystick, move the joystick forward,
Check if LED "HRMTR ON" turns on. If not on, the main
controller may be faulty. Check fuse F2 on the main
controller.
b. If the LED turns on, but unit still doesn't drive, the motor
controller may be faulty. Refer to the Motor Controller
Troubleshooting section.
•
UP/DOWN, LEFT/RIGHT Commands Do Not Work
-When pressing UP, DOWN, LEFT, or RIGHT switches on the joystick, the
machine does not respond.
1. Check if there is communication between the main controller and the
joystick. If L1 and L2 LED’s on the joystick are not blinking rapidly,
there is no communication. Refer to the previous step to troubleshoot
"No Communication".
2. For faulty UP command:
a. Hold "UP" switch on the joystick, make sure it lights up. If
it doesn't, the internal bulb may be blown or the switch may
be faulty.
b. Press "UP" and "ENABLE" on the joystick. Make sure that
LED's "PUMP ON", "UP ON" and "HRMTR ON" turn ON.
If not, the main controller may be faulty.
3. For faulty DOWN command:
