Troubleshooting; Fault Messages - Invertek Drives OPTIDRIVE P2 Series Easy Start Up Manual

11. Troubleshooting
11.1. Fault messages
Fault Code No. Description
no-Flt
00 No Fault
OI-b
01 Brake channel over current
OL-br 02 Brake resistor overload
O-I 03 Instantaneous over current on drive
output.
Excess load on the motor.
I.t-trp 04 Drive has tripped on overload after
delivering >100% of value in P1‐08 for
a period of time.
PS-trP 05 Hardware Over Current
O-Volt 06 Over voltage on DC bus
U-Volt 07 Under voltage on DC bus
O-t 08 Heatsink over temperature
U-t 09 Under temperature
P-def 10 Factory Default parameters have
been loaded
E-trip 11 External trip
SC-Obs 12 Communications Fault
Flt-dc 13 Excessive DC Ripple
P-Loss 14 Input phase loss trip
h O-I 15 Instantaneous over current on drive
output.
Optidrive ODP‐2 User Guide Revision 1.30
Corrective Action
Displayed in P0‐13 if no faults are recorded in the log
Ensure the connected brake resistor is above the minimum permissible level for the drive –
refer to the ratings shown in section 10.2.
Check the brake resistor and wiring for possible short circuits.
The drive software has determined that the brake resistor is overloaded, and trips to protect
the resistor. Always ensure the brake resistor is being operated within its designed parameter
before making any parameter or system changes.
To reduce the load on the resistor, increase deceleration the time, reduce the load inertia or
add further brake resistors in parallel, observing the minimum resistance value for the drive
in use.
Fault Occurs on Drive Enable
Check the motor and motor connection cable for phase – phase and phase – earth short
circuits.
Check the load mechanically for a jam, blockage or stalled condition
Ensure the motor nameplate parameters are correctly entered, P1‐07, P1‐08, P1‐09.
If operating in Vector mode (P4‐01 – 0 or 1), also check the motor power factor in P4‐05 and
ensure an autotune has been successfully completed for the connected motor.
Reduced the Boost voltage setting in P1‐11
Increase the ramp up time in P1‐03
If the connected motor has a holding brake, ensure the brake is correctly connected and
controlled, and is releasing correctly
Fault Occurs When Running
If operating in Vector mode (P4‐01 – 0 or 1), reduce the speed loop gain in P4‐03
Check to see when the decimal points are flashing (drive in overload) and either increase
acceleration rate or reduce the load.
Check motor cable length is within the limit specified for the relevant drive in section 10.2
Ensure the motor nameplate parameters are correctly entered in P1‐07, P1‐08, and P1‐09
If operating in Vector mode (P4‐01 – 0 or 1), also check the motor power factor in P4‐05 and
ensure an autotune has been successfully completed for the connected motor.
Check the load mechanically to ensure it is free, and that no jams, blockages or other
mechanical faults exist
Check the wiring to motor and the motor for phase to phase and phase to earth short
circuits. Disconnect the motor and motor cable and retest. If the drive trips with no motor
connected, it must be replaced and the system fully checked and retested before a
replacement unit is installed.
The value of the DC Bus Voltage can be displayed in P0‐20
A historical log is stored at 256ms intervals prior to a trip in parameter P0‐36
This fault is generally caused by excessive regenerative energy being transferred from the
load back to the drive. When a high inertia or over hauling type load is connected.
If the fault occurs on stopping or during deceleration, increase the deceleration ramp time
P1‐04 or connect a suitable brake resistor to the drive.
If operating in Vector Mode, reduce the speed loop gain P4‐03
If operating in PID control, ensure that ramps are active by reducing P3‐11
This occurs routinely when power is switched off.
If it occurs during running, check the incoming supply voltage, and all connections into the
drive, fuses, contactors etc.
The heatsink temperature can be displayed in P0‐21.
A historical log is stored at 30 second intervals prior to a trip in parameter P0‐38
Check the drive ambient temperature
Ensure the drive internal cooling fan is operating
Ensure that the required space around the drive as shown in sections 3.5 to 3.9 has been
observed, and that the cooling airflow path to and from the drive is not restricted
Reduce the effective switching frequency setting in parameter P2‐24
Reduce the load on the motor / drive
Trip occurs when ambient temperature is less than ‐10°C. The temperature must be raised
over ‐10°C in order to start the drive.
Press STOP key, the drive is now ready to be configured for the required application
E‐trip requested on control input terminals. Some settings of P1‐13 require a normally closed
contactor to provide an external means of tripping the drive in the event that an external
device develops a fault. If a motor thermistor is connected check if the motor is too hot.
Communications lost with PC or remote keypad. Check the cables and connections to
external devices
The DC Bus Ripple Voltage level can be displayed in parameter P0‐22
A historical log is stored at 20ms intervals prior to a trip in parameter P0‐39
Check all three supply phases are present and within the 3% supply voltage level imbalance
tolerance.
Reduce the motor load
If the fault persists, contact your local Invertek Drives Sales Partner
Drive intended for use with a 3 phase supply, one input phase has been disconnected or lost.
Refer to fault 3 above
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