Stober PS6 Series, Руководство пользователя

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STOBER 4 | UL-compliant use
02/2019 | ID 442728.05
19
4 UL-compliant use
This chapter contains relevant information for use under UL conditions (UL – Underwriters
Laboratories).
Surrounding air temperature and pollution degree
The maximum surrounding air temperature for UL-compliant operation is 45 °C. Use in an
environment with pollution degree 2 is permitted.
Network layout
All device types supplied with 480 V
AC
are intended solely for operation with grounded wye
sources at 480/277 V
AC
.
Project configuration
Observe the notes in the chapter Project configuration [ } 76] .
You can find an order overview of the hardware components in the chapter Order overview of
the hardware components [
}
83] .
The maximum number of devices in the device group is limited by certain variables. The
nominal output current I
2N,PU
of the supply module, the charging capacity C
PU
of the supply
module and the maximum copper rail length of 1500 mm must not be exceeded.
For this purpose, observe the information in the chapter Example design for UL-compliant
operation [
}
80] .
Line fuse
Mark each device group and observe the specifications in the chapter UL-compliant line fuse
[ } 105] to ensure that the line fuses of the supply modules with power are UL-compliant.
Branch circuit protection
Integral solid state short circuit protection does not provide branch circuit protection (line fuse)
upstream of the drive controller. Branch circuit protection must be provided in accordance with
the manufacturer instructions, the National Electrical Code, the Canadian Electrical Code, part
1, and any additional local codes.
Grounding
1. Protective grounding
The external motors which are connected to the inverter units SI6 units shall not be grounded
over the modular drive system. The bonding/grounding of the motor(s) shall occur in the end
use application in accordance with the requirements of applicable electrical codes/standards.
The grounding provisions present on the terminals X20A/X20B of the SI6 unit are not intended
for safety grounding of the motors. The grounding provision present on terminal X10 of the
inverter unit is not to be used for the grounding of the drive system.
The chassis of the PS6A/SI6A units is to be bonded through the M6 grounding studs on the
PS6A units (4.0 Nm, 35 Lb.inch).
The chassis of the SI6A units are to be bonded by means of proper mounting of the SI6A unit(s)
by means of two mounting screws on top of the DL6B unit(s). The specified tightening torque for
these mounting screws on the DL6B units is: 3.5 Nm (31 Lb.inch).