Discharge Time; Maintenance; Storage - Danfoss VLT ISD 510 Design Manual

System Integration
Electrical isolation is provided and the components comply
with both PELV and galvanic isolation requirements. The
components also comply with the requirements for higher
isolation and the relevant test as described in
EN 61800-5-1.
All control terminals and relay terminals 01-03/04-06
comply with PELV.
4 4
Installation at high altitude
Installations exceeding high altitude limits may not comply
with PELV requirements. The insulation between
components and critical parts could be insufficient. There
is a risk of overvoltage. Reduce the risk of overvoltage
using external protective devices or galvanic isolation.
NOTICE
For installations at high altitude, contact Danfoss
regarding PELV compliance.

4.3.5.1 Discharge Time

WARNING
DISCHARGE TIME
The servo drives and the SAB contain DC-link capacitors
that remain charged for some time after the mains
supply is switched off at the SAB. Failure to wait the
specified time after power has been removed before
performing service or repair work could result in death
or serious injury.
•
To avoid electrical shock, fully disconnect the
SAB from the mains and wait for at least the
time listed in Table 4.8 for the capacitors to fully
discharge before carrying out any maintenance
or repair work on the ISD 510 servo system or
its components.
Number
0–64 servo drives
Table 4.8 Discharge Time

4.3.6 Maintenance

The SAB is mainly maintenance free. A maintenance
interval for the cooling fans (approximately 3 years) is
recommended in most environments.
The ISD is largely maintenance free. Only the shaft seal (if
used) is subject to wear.
42
®
VLT Integrated Servo Drive ISD
Minimum waiting time (minutes)
10
Danfoss A/S © 08/2017 All rights reserved.
®
510 System
Component Maintenance Maintenance
task interval
Servo drive Carry out a Every 6 months
visual
inspection.
Shaft seal Check the Recommended
condition and every 4500 hrs.
check for A shorter or
leakage. longer interval
is possible
depending on
the application.
Hybrid cable Check for Every 6 months
damage and
wear.
Mechanical Check the Every 6 months
holding brake.
brake
(optional)
Functional Perform a Every 12
safety system power months
cycle and
check the STO
function.
SAB Check the fan. Every 12
months
Table 4.9 Maintenance Tasks

4.3.7 Storage

Like all electronic equipment, SABs and servo drives must
be stored in a dry, dust-free location with low vibration
(veff ≤0.2 mm/s). Do not store the packaged system
components on top of each other. The storage location
must be free from corrosive gases. Avoid sudden
temperature changes.
Keep the equipment sealed in its packaging until instal-
lation. Periodic forming (capacitor charging) is necessary
once per year during storage.
NOTICE
To recondition the electrolytic capacitors, servo drives
and SABs not in service must be connected to a supply
source once per year to allow the capacitors to charge
and discharge. Otherwise the capacitors could suffer
permanent damage.
Instruction
Check for any
abnormalities on
the surface of
the servo drive.
If damaged,
replace the shaft
seal.
If damaged or
worn, replace
the hybrid cable.
Ensure that the
brake can
achieve the
holding torque.
Activate the STO
and check the
status with the
PLC.
Check that the
fan can turn and
remove any dust
or dirt.
MG36C102