Magnetek IMPULSE VG+ Series 3, Инструкция по эксплуатации, Страница: 159 / 183

IMPULSE•VG+ Series 3 Instruction Manual – 07/25/05
6-10
PGO-2
PG Open 2
(Applies only with
PG-Z2 Option Card)
Pulse Generator Channel 2 Fault.
PGO-2-S, software detected fault.
PGO-2-H, hardware detected fault
1. Check for proper direction of encoder
feedback.
2. Please reference troubleshooting encoder
related faults on page 6-12.
PUF
DC Bus Fuse Open
DC Bus Fuse Open Fault. The DC fuse is
open.
1. Check for damaged transistor.
2. Check load-side short circuit.
3. Check grounding.
Do not replace an open DC bus fuse until the
cause of failure has been corrected; non-
warranty, damage to the drive may result. Refer
to the “Power Section Check”.
RR
DynBrk Transistr
Braking Transistor Fault. Internal Braking
transistor failed.
1. Verify that the external braking resistor is
connected to the proper terminals.
2. Confirm that the proper resistor is installed.
3. Check for a short circuit across the braking
resistor.
SC
Short Circuit
Short Circuit Fault. The inverter has detected
an output short circuit condition.
1. Disconnect the motor from the inverter.
2. Check for a short circuit in the motor or
wiring using a megger.
SLC
Slack Cable Detection
Slack Cable Fault. A hoist slack cable
condition occurred.
1. May not require corrective action.
2. Check proper programming of Slack Cable
Detection (C11-XX).
SNAP
Snapped Shaft
Snapped Shaft Fault. A drive train
discontinuity has been detected.
1. Check for loose or broken coupling.
2. Check for loose encoder(s).
3. Check for broken shaft.
SVE
Zero Servo Fault
Zero-Servo Fault. 1. Check Zero-Servo sequence set-up.
UL1
Upper Limit 1 Err
Upper Limit 1—SLOW DOWN
Indicator.
Upper Limit 1—SLOW DOWN
switch status is changed.
1. May not require corrective action.
2. Check the limit switches location.
3. Check the limit switches condition.
UL2
Upper Limit 2 Err
Upper Limit 2—STOP Indicator. Upper
Limit 2—STOP switch status is changed.
1. May not require corrective action.
2. Check the limit switches location.
3. Check the limit switches condition.
UT1
Undertorque Det 1
Undertorque Detection 1. The current is less
than L6-02 for more than L6-03 .
1. Check settings.
2. Check motor coupling.
UT2
Undertorque Det 2
Undertorque Detection 2. The current is less
than L6-05 for more than L6-06 .
1. Check settings.
2. Check motor coupling.
UV
DC Bus Undervolt
Undervoltage Fault. Undervoltage status
occurs for more than 2 sec during STOP. Input
voltage drops below 190V DC or less for 230V
AC class, 380V DC or less for 460V AC class.
1. Check the power source wiring.
2. Replace any bad branch fuses.
3. Check collector system.
UV1
DC Bus Undervolt
Undervoltage 1 Fault. Undervoltage status
occurs for more than 2 sec during RUN
command. Input voltage drops below 190V DC
or less for 230V AC class, 380V DC or less for
460V AC class.
1. Check power supply wiring.
2. Correct the line voltage.
3. Check collector system.
Fault Code Fault or Indicator Name/Description Corrective Action