Sab; Troubleshooting - Danfoss VLT Series Programming Manual

Diagnostics
Signal ID
(hex)
80000008
80000009
8000000A
8000000B
8000000E
8000000F
80000010
80000012
80000013
80000014
80000015
80000016
80000017
80000020
80000021
80000022
80000023
9 9
80000025
80000026
Table 9.3 Trace Signals for Servo Drive

9.3 SAB

9.3.1 Troubleshooting

Table 9.4 lists potential faults on the SAB, their possible
causes, and actions for correcting the faults.
Fault
LCP display dark
or has no
function.
372
Signal name PLC library -
trace constant name
Rotor position logical ISD51x_TRC_ROTOR_POS_ACT_VIRT
Following error ISD51x_TRC_PCTRL_LAG_ERROR
Rotor mech angle raw ISD51x_TRC_ROTOR_POS_RAW
Rotor speed relative –
Position ctrl set ISD51x_TRC_PCTRL_POS_SET
Logical CAM setpoint ISD51x_TRC_CAM_POS_SET
Cam velocity set ISD51x_TRC_CAM_N_SET
Controlword ISD51x_TRC_CONTROLWORD
Statusword ISD51x_TRC_STATUSWORD
Motion and input status ISD51x_TRC_MOTION_AND_INPUT
Cam profile status ISD51x_TRC_CAM_PROFILE_STATUS
Logical CAM setpoint scaled –
CAM friction torque ISD51x_TRC_CAM_FRICTION_COMP
Position actual value ISD51x_TRC_POSITION_ACTUAL_VALUE Actual position in user-defined units
Velocity actual value ISD51x_TRC_DS402_VELOCITY_ACT_VAL Actual velocity in user-defined units
Torque actual value ISD51x_TRC_TORQUE_ACTUAL_VALUE
Following error actual value ISD51x_TRC_DS402_FOLLOW_ERR
Position guide value reference ISD51x_TRC_GUIDE_REF_VAL_POS
Velocity guide value reference ISD51x_TRC_GUIDE_REF_VAL_SPEED
Possible cause Possible solution
Missing input Check the input power
power. source.
Missing or open Check the fuses and circuit
fuses or circuit breaker.
breaker tripped.
•
No power to the Check the LCP cable for
LCP. proper connection or
damage.
•
Replace any faulty LCP
or connection cables.
Incorrect
Press [Status] + [
contrast setting.
adjust the contrast.
Display is Replace the faulty LCP or
defective. connection cable.
Danfoss A/S © 01/2017 All rights reserved.
®
VLT Integrated Servo Drive ISD
Fault
Open power
fuses or circuit
breaker trip.
DC-link voltage
too high.
▲ ▼
]/[ ] to
®
510 System
Description
Logical rotation position of motor shaft –
Following error (difference between act
value and setpoint)
Raw mechanical angle, not
compensated for resolver mounting to
pole, not mirrored
Rotor speed relative
Setpoint of position control loop
Position setpoint in cam mode
Speed setpoint in cam mode
Controlword
Statusword
Motion and input status
Cam profile status
Position setpoint in cam mode after
slave scaling
Cam friction compensation torque
Actual torque ‰ of rated torque
Following error in user-defined units
Position guide value reference
Velocity guide value reference
Possible cause Possible solution
•
Phase-to-phase Check the cabling.
short.
•
Check for loose
connections.
Brake resistor Check the brake resistor
not connected. cabling.
Brake resistor Check if the lowest
too high resistance value has been
resistance. entered.
•
Several servo Avoid simultaneous
drives are deceleration of several
decelerating servo drives.
with insufficient
•
Change the deceleration
ramp time.
speed of the servo
drives.
Brake resistor Activate the brake function.
functionality not
activated.
OD object
–
–
–
–
0x2021
–
0x6040
0x6041
0x2006
0x3085
–
–
0x6064
0x606C
0x6077
0x60F4
0x2062
0x2065
MG36D102