Yaskawa DSD 406 - Manual (Page 10)

Ratings Protective Features
●
3.3 - 206 Amps
●
3 Phase, 48-62 Hz
●
1.0 Service Factor
●
150% full load current for one
minute
● 200% full load current for 10
seconds
Basic Drive Specifications
● Full-wave six-pulse SCR control
●
Regulation (of set speed) to
0.00% with digital tachometer
speed feedback
●
Current regulated shunt field
●
Capable of constant HP
operation (requires tachometer)
● Self-adapting to incoming line
power of 230 or 460 VAC.
Service Conditions
● Line voltage 230 or 460 Vac, 3
phase, ±10% of nominal setting
●
115 volt, 1 phase control power
from separate source
●
Frequency 48-62 Hz
●
Incoming line impedance range
2%-10% of rated
●
Operating Temperature 0-45° C
(55° C max at DSD chassis)
●
Altitude to 3300 feet above sea
level
● Relative Humidity 95%
(noncondensing)
1 Introduction
5 System Considerations
3/21/96
System
Considerations
In order to operate in a system application, the DSD drive may be used with
other MagneTek devices with which it will communicate by means of the
MicroTrac Local Area Network (LAN). Refer to Figure 1 for a typical DSD
System.
Each of the following remote devices (board or assembly) is described in detail
in a separate User Reference Sheet.
●
Remote Display Controller LAN Node PCB (RDC) – This board provides
a means for the DSD system to have system operating parameters displayed
●
Programmed memory protection
●
Self-protected control power
supply
●
Fast phase-back of current
before loop contactor opens
●
Contact interlock for E-Stop
● I 2 t motor overload protection
●
AC line current limiting fuses
●
DC bus fuse (DSD 412 only)
●
Instantaneous over-current
protection
●
Phase loss protection
●
Input line monitoring
●
Phase sequence insensitive
●
dv/dt protection (snubbers)
●
1400 Peak Reverse Voltage
thyristors
●
Field current economizer and
loss protection
●
Tachometer monitoring and loss
protection
● Heat sink thermostat
●
Automatic test of power circuit
upon power-up
●
Control power supply loss
detection
●
Isolated I/O and grounded
electronics
Table 1. Drive Ratings and Specifications