Before Commencing Repair Work - Danfoss ADAP-KOOL AKD 102 Operating Instructions Manual

Safety
7. Please note that the frequency converter has more voltage inputs than L1, L2 and L3, when load sharing (linking
of DC intermediate circuit) and external 24 V DC have been installed. Check that all voltage inputs have been
disconnected and that the necessary time has passed before commencing repair work.
2 2
Installation at high altitudes
WARNING
Installation at high altitude:
380 - 500 V, enclosure A, B and C: At altitudes above 2 km, please contact Danfoss regarding PELV.
380 - 500 V, enclosure D, E and F: At altitudes above 3 km, please contact Danfoss regarding PELV.
WARNING
Warning against Unintended Start
1. The motor can be brought to a stop by means of digital commands, bus commands, references or a local stop,
while the frequency converter is connected to mains. If personal safety considerations make it necessary to ensure
that no unintended start occurs, these stop functions are not sufficient.
2. While parameters are being changed, the motor may start. Consequently, the stop key [STOP/RESET] must always
be activated; following which data can be modified.
3. A motor that has been stopped may start if faults occur in the electronics of the frequency converter, or if a
temporary overload or a fault in the supply mains or the motor connection ceases.
WARNING
Touching the electrical parts may be fatal - even after the equipment has been disconnected from mains.
Also make sure that other voltage inputs have been disconnected, such as external 24 V DC, load sharing (linkage of DC
intermediate circuit), as well as the motor connection for kinetic back up. Refer to the Operating Instructions for further
safety guidelines.
2.1.4 Caution
The frequency converter DC link capacitors remain charged after power has been disconnected. To avoid an electrical shock hazard, disconnect the
frequency converter from the mains before carrying out maintenance. Wait at least as follows before doing service on the frequency converter:
Voltage
200 - 240 V
380 - 480 V

2.1.5 Before Commencing Repair Work

1. Disconnect the frequency converter from mains
2. Disconnect DC bus terminals 88 and 89
3. Wait at least the time mentioned in section General Warning above
4. Remove motor cable
8
ADAP-KOOL
Caution
Be aware that there may be high voltage on the DC link even when the LEDs are turned off.
MG.11.L4.02 - ADAP-KOOL
®
Drive Operating Instructions
Minimum Waiting Time
4 min.
1.1 - 3.7 kW
1.1 - 7.5 kW
®
Drive
15 min.
5.5 - 45 kW
11 - 90 kW