E-18 Technical Specifications 590 Series DC Digital Drive
Terminal Information – Control Board
This Control Board is common to all 590 units.
Terminal Description Terminal Function Signal Level Configurable Terminal
Number
TERMINAL BLOCK C
0V (Signal)
Zero Volt Reference 0V N/A C1
Thermistor/Microtherm
Input
Motor overtemperature protection element input
(must be double insulated sensor).
It is good practice to protect DC motors against
sustained thermal overloads by fitting temperature
sensitive resistors or switches in the field and
interpole windings of the machine. These devices
have a low resistance (typically 200Ω) up to a
reference temperature 125
o
C. Above this
temperature, their resistance rises rapidly to
greater than 2000Ω. Motor overtemperature
sensors should be connected in series between
terminals C1 and C2. A motor overtemperature
alarm will be indicated if the external resistance
between C1 and C2 exceeds 1.8kΩ +
200Ω.
Terminals C1 and C2 must be linked if
overtemperature sensors are not used.
N/A C2
Start/Run Input
Start/Run
When an input is applied to this terminal, the
main contactor will close and the controller will
operate provided there are no alarms, program
stop/coast stop signals are high and the
controller is enabled. When the input is removed
the controller will perform a regenerative stop to
zero speed. A regenerative stop can only be
achieved by a 4 quad regenerative controller; the
2 quad non-regenerative controller will coast to
zero speed.
+24V = True/Run
0V (o/c) = False/Normal Stop
+5V to +15V Transition region
NO C3
Jog Input Jog
When the Jog Input is held at +24V, the drive
jogs provided input C3 is low. When the Jog
Input is removed the drive will ramp down to zero
obeying the Jog Ramp Rate.
+24V = True/Jog
0V = False/Stop
+5V to +15V Transition region
YES
C4
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