3-12 Installing the Converter
590D DC Digital Converter - HA467078
If the +24V is removed from Terminal B8 whilst the drive is controlling the motor under "Run"
conditions, the controller will cause the motor to decelerate rapidly to rest at a rate determined
by PROG STOP I LIM, PROG STOP LIMIT and PROG STOP TIME. If the signal is re-
applied to Terminal B8, the motor remains stationary until a new Start command is applied to
Terminal C3 (Start/Run).
Emergency Stop
Additional terminals, Terminal B8 (Program Stop) and Terminal B9 (Coast Stop), provide extra
facilities for the control of the regenerative controller:
• Terminal B9 (Coast Stop) must be held at +24V to allow closure of the main contactor, the
connection provides the power supply to allow the electronics to operate the auxiliary relay
and hence the main contactor.
Connect Terminal B9 (Coast Stop) to Terminal C9 (+24V) via a normally open contact of an
"emergency" stop relay. The emergency stop relay should not be part of the normal
sequencing of the system, which is implemented via the Start contacts, but is a relay which
can be operated in exceptional circumstances where human safety is of paramount
importance.
• Terminal B8 (Program Stop) provides a facility for regenerative braking on a 4 Quadrant
drive (590 and 598).
Zero Speed, Drive Healthy, Drive Ready (B5, B6, B7)
These digital output
terminals provide a
+24V dc output
signal under certain
conditions. This
allows for the
connection of relays
which, in
conjunction with the
Enable, Start/Run
and Emergency Stop
relay, can be used to
enhance the safe
starting and stopping
of the controller.
These are
configurable outputs
and can be used as
required in the
control system
design, i.e. cubicle
door lamps,
connection to a
suitable PLC.
(The diagram shows a simple default configuration).
RS485 Link (H1, H2, H3, H4, H5, H6)
These terminals are found on the plug-in COMMS
Option Board. The board, when fitted to each unit, allows
converters to be linked together to form a network.
Refer to the RS485 Communications Interface Technical
Manual supplied with the option board.
EMERGENCY
STOP
RELAY
ZERO
SPEED
DRIVE
HEALTHY
DRIVE
READY
C1 C2
START
/RUN
ENABLE
B9A1 B8 C5 C3
B3A4B4A8A3
A2
A6
B5 B6 B7
H4
H3
H2
H1C9
H5 H6
THERMISTOR
S
S
S
RL
RL
RL
590 CONTROLLER
RS485 LINK
H4
H3
H2
H1C9
H5 H6 D1
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