Symptom Cause Remedy
A. Motor does not rotate. A1. No power. 1. Check fuse and replace if defective.
2. Check that unit is plugged into a
live line.
3. Check connection of power cord.
4. Check the line cord for continuity and replace if
defective.
5. Return for servicing.
A2. Defective remote control. 1. Place power switch in off position.
2. Check that remote cable connector is inserted
fully into the AC receptacle.
3. If motor still does not rotate, select INT with the
MODE control and press the STOP/START
control.
4. If the motor rotates, replace the remote control
with similar unit. If motor will not rotate, return
drive for servicing.
B. Motor does not rotate. B. MODE control not properly set. 1. Check that the MODE control is set to INT for
operation with front panel control or to mA or V
for operation with remote control.
2. If motor still does not rotate, return for
servicing.
If an error message is displayed, refer to the following list for possible
corrective action you can take. If these do not correct the problem, contact
your dealer.
Symptom Cause Remedy
“Err 1” Changing speed reference too fast (motor undershoots). Clear by pressing stop/start.
No encoder pulses from motor. Check all motor/encoder
connections.
“Err 2” Changing speed reference too fast (motor overshoots). Clear by pressing stop/start.
Motor over-speed. Check all motor/encoder
connections.
“Err 4” Bad PROM. Return unit for repair.
“Err 5” Bad zero crossing detector or crystal. Return unit for repair.
“Err 6” Bad EEPROM data, operator parameters set to default Avoid fast switching of power to
values. the unit.
“Err 7” Bad EEPROM data, A/D span cal, span cal set to default. Return unit for repair.
“Err 8” EEPROM write/verify error. Return unit for repair.
B/T
®
RAPID-LOAD
®
Peristaltic Pumps and Drive Operating Manual 4-5Cole-Parmer
Section 4
Maintenance and Troubleshooting
Troubleshooting
Models 77111-40
and 77111-47
Display lights.
Display does not light.
Error Codes
To Next Page
Loading...
Need help?
General
