Hitachi P1

Page 22
SETTING ENCODER-BASED LIMITS (CLV)
Use the step chart below to set the encoder-based limits. If using switches from the factory use the image below of the blue terminal
knife disconnect as reference.
Step
Instruction
Verify
Verify the encoder-based limits are enabled by navigating to VFD parameter UE-33 and verifying the value is set
to 1 or 2.
If you are using external switches (UE-33 = 1) then use the steps WITHOUT the asterisk *.
If you are using the parameters (UE-33 = 2) then use the steps with the asterisk *
Using Switches (UE-33 = 1)
1
Locate the blue terminal knife disconnect labeled “PP” and pull the yellow tab to the open position, this will put the
limits into program mode.
2
Run the hook block to the desired upper limit position and wait for the motor brake to set.
3
Locate the blue terminal knife disconnect labeled “PR” and pull the yellow tab to the open position and
wait 2 seconds then close the “PR” tab, this will clear the current position pulse count.
4
Run the hook block to the desired lower limit position and wait for the motor brake to set.
5
Close the yellow tab on the “PP” terminal knife disconnect.
6
Verify operation of the upper and lower limits.
* Using Parameters (UE-33 = 2)
*1
Navigate to VFD parameter UE-66 and set the value to 1 and save it.
*2
Run the hook block to the desired upper limit position and wait for the motor brake to set.
*3
Navigate to VFD parameter UE-66 and set the value to 2 and save it, wait 2 seconds, and change it back to 1. This will
clear the current position pulse count.
*4
Run the hook block to the desired lower limit position and wait for the motor brake to set.
*5
Navigate to VFD parameter UE-66 and set the value to 0 and save it.
*6
Verify operation of the upper and lower limits.
Encoder Limits Program and Reset Knife Disconnect