S200: Drive Fault Codes

The Drive Status LED is located on the front panel. The drive status and fault codes are communicated by the state of the LED.

Status LED	Drive Status
ON	Drive is enabled, not faulted. Normal Operation. Output stage is enabled and controlling power to the motor.
OFF	Drive control input is not powered or has insufficient voltage applied.
Fast Blinking	Drive is not enabled, not faulted. Output stage is not enabled – no power to the motor.
Slow Blinking (with a pause)	Drive is blinking a fault code. The number of blinks corresponds to a specific fault code. See the LED Fault Code Table.

LED Fault Code Table

Blink Count	Fault Description	Possible Cause	Fault Code (Binary) (Hex)
ON	No faults, power stage is enabled	Normal Operation
OFF	Control power not applied or insufficient control power applied	Loose or open circuit wiring of control power input. Low input voltage to control power supply.
Fast Blink	No faults, power stage disabled	Hardware or Software Enable inactive, to enable drive apply hardware enable and set software enable.
1 Blink	No Fault		00000 0
2 Blinks	Motor Over Temp Motor temperature exceeds allowable limit.	High ambient temperature at motor. Insufficient motor heat sinking from motor mounting. Operating above the motor’s continuous current rating. Motor temperature sensor failure or not connected.	00001 1
3 Blinks	Drive Over/Under Temp Temperature of drive heatsink/chassis is outside of allowed limits.	High or low drive ambient temperature. Restriction of cooling air due to insufficient space around unit. Operating above the drive’s continuous current rating.	00010 2
4 Blinks	*Drive It Too High** The product of the drive's output current multiplied by time, has exceeded allowed limits. If current foldback is enabled, the drive peak output current is automatically reduced to 0.67% of DIpeak. If foldback is not enabled, the drive will fault.	Mechanically-jammed motor. Motion profile acceleration requires peak current for too long of a time duration. Machine load on the motor increased by friction. Wiring problem between drive and motor yielding improper motionMotor commutation error. Drive under-sized for application, friction or load.	00011 3
5 Blinks	*Motor IIt Too High* Motor current amplitude squared, multiplied by time has exceed allowed limits.	Mechanically-jammed motor. Motion profile acceleration requires peak current for too long of a time duration. Machine load on the motor increased by friction. Motor commutation error. Motor under-sized for application, friction or load.	00100 4
6 Blinks	Optional Battery low Optional fault used to indicate SFD battery supply voltage is low.	Battery low fault enabled and battery is not installed. SFD Battery backup voltage is low.	00101 5
7 Blinks	Bus Over Voltage - Self Resetting The BUS voltage has exceed the upper threshold limit.	AC Line voltage (AC unit) or DC bus power supply voltage (DC unit) is too high. Regenative energy during deceleration is causing the BUS to rise: On AC Drives add regen resistor. On S200 DC input drives external BUS capacitor is too small; add capacitance.	00110 6
8 Blinks	Bus Under Voltage - Self Resetting S200 DC drive fault only. BUS voltage is below specified 20 Vdc minimum.	On S200 DC input drives: BUS voltage is too low. BUS voltage is pulled down during high acceleration or loading. External BUS capacitor is too small.	00111 7
9 Blinks	Motor l-l or l-n Short Line-to-Line, Line-to-Neutral or Line-to-PE short on the motor output causing an instantaneous over current.	Motor power wiring short circuit - line-to-ground / neutral. Motor cable short line-to-line. Motor power cable length exceeds the datasheet specification, causing excessive motor line-to-earth ground/neutral capacitance. Internal motor winding short circuit.	01000 8
10 Blinks	Output Over Current	Insufficient motor inductance KIP or KII improperly set, causing excessive output current overshoots.	01001 9
11 Blinks	Hall Fault Valid only when drive is set for 6-Step (Hall feedback) operation	Invalid configuration. Motor overspeed. Invalid hall state. Invalid Hall transition.	01010 A
12 Blinks	SFD Configuration Error	SFD UART error during SFD initialization. Bad motor data check sum. The drive will attempt to initialize the SFD up to 4 times. If it fails, this error is reported.	01011 B
13 Blinks	SFD Short Excessive current drain on SFD +5 supply output.	Excessive loading on SFD +5 supply. Short in the feedback cable on SFD +5 (J3-1) to ground.	01100 C
14 Blinks	SFD Motor Data Error Motor data in SFD is outside drive limits or is inconsistent.	Motor and Drive are not compatible. Auto setup calculation yielded a desired parameter value outside valid range. Incorrect/inconsistent motor data loaded into the SFD.	01101 D
15 Blinks	SFD Sensor Failure	Internal SFD failure. Excessive electrical noise in the drive environment causing communications interference.	01110 E
16 Blinks	SFD UART Error	Internal SFD failure.	01111 F
17 Blinks	SFD Communication Error	Feedback cable not connected at the drive or at the motor. Feedback cable shield not connected. Defective feedback cable. Internal SFD failure. Excessive electrical noise in the drive environment causing communications interference.	10000 10
18 Blinks	Option Card Watch Dog Timeout	Communication error between option card and main board.	10001 11
19 Blinks	Position Error Too Large	Check ExtFaults: ExtFaults = Step size over flow means GearOut/GearIn is too large. ExtFaults = Position error over flow means that the following error, = PosErr, has exceeded ±128 revs. Check if the motor is stalling or if the commanded speed is higher than the motor can achieve at the present bus voltage.	10010 12
20 Blinks	Option Card Fault	Check ExtFaults: If ExtFaults is AuxFBFault, then the AuxFB device is in error. Check the AuxFB faults: AuxFBEnDatFlt, AuxFBPTCFlt or AuxFBSCDFlt. Check to make sure that the drive is set up for the correct feedback device and that the device is functioning correctly. If ExtFaults is “No Extended Fault,” then this was a fault induced by the controller, such as SynqLost.	10011 13

Fault Generation

The following sequence occurs when the protection circuits generate a fault.

One or more faults are detected by the control logic.
The fault source is latched – only for latched faults.
The output stage is disabled.
The LED indicates the appropriate fault code.
For non-latched faults. When the fault condition is cleared, the drive re-enables automatically.

Latched faults are cleared by setting the Enable/ input to the disable state or by cycling (off/on) the Control Power.

NOTE: The large bus capacitors store substantial energy. To use the control power to reset a fault, the power should be removed for at least 30 seconds to ensure that the fault resets. Self-resetting faults disable the drive and do not return it to normal operation until 50-100 ms after the fault condition clears.

When multiple faults occur, the highest priority fault is reported. After that fault is cleared and the drive is reset by cycling the enable input, the next highest priority fault that still exists will be displayed.