Notes on safety
ID 442269.07
14
Projecting manual POSIDRIVE® FDS 5000
2
WE KEEP THINGS MOVING
2.10
Residual dangers
The connected motor can be damaged with certain settings of inverters:
•
Longer operation against an applied motor halting brake
•
Longer operation of self-cooled motors at slow speeds
Drives can reach dangerous excess speeds (e.g., setting of high output frequencies for motors and motor
settings which are unsuitable for this). Secure the drive accordingly.
2.11
UL-compliant use
Additional information for use under UL conditions (UL – Underwriters Laboratories).
Surrounding temperature and pollution degree
The maximum surrounding temperature for UL-compliant operation is 45° C.
Observe the specifications in the general data for use in an environment with pollution degree, see section 3.1.1.
Power grid type
All device types that are supplied with 480 V are designed exclusively for operation on Wye sources with 480/
277 V.
Power supply and motor overload protection
Observe the specifications in the electrical data of the inverter for this, see section 3.2.
Line fuse
Observe the specifications for the UL-compliant line fuse in section 5.3.1.
Motor protection
All models of STOBER 5th generation inverters have a certified i²t model, a calculation model for thermal
monitoring of the motor. This fulfills the requirements for semiconductor motor overload protection in
accordance with the change to UL 508C dated May 2013. To activate the protective function and set it up,
make the following parameter settings – which differ from the default values: U10 =
2:Warning
and U11 =
1.00 s. This module can be used as an alternative or in addition to motor protection with temperature
monitoring as described in section 5.8.
Motor temperature sensor
All models of the 5th generation of STOBER inverters starting with HW 200 have connections for PTC
thermistors (NAT 145° C) or KTY temperature sensors (KT84-130). Observe the terminal description X2 for
proper connection, see section 5.8.
Information
STÖBER ANTRIEBSTECHNIK GmbH & Co. KG recommends using PTC thermistors as thermal
motor protection.