Instruction manual

7
Installation
The Field Regulator Unit should be installed in accordance with the National Electric
Code and any applicable local or state codes.
WIRING PRECAUTIONS:
Use shielded cable for all signal wiring. Connect the shield to circuit common at the
receiving circuit end only.
Any relays, contactors, motor starters, solenoids, etc. located in close proximity to or on
the same AC line as the Field Regulator Unit should have a transient suppression device
in parallel with the coil to minimize interference with the unit.
TERMINAL CONNECTIONS:
TB1
Terminals 1,2 &3 External pot for field current control when in the manual mode. Note
that a pot connected with the clockwise terminal at TB1-3 will
increase field current as the pot setting is increased. When this pot is
used to control motor speed, it should be connected in reverse so that
field current will decrease as the setting is increased.
Terminals 4 & 5 RUN terminals. (Closure shuts off field economy)
Terminals 6 & 7 DC tachometer from motor
Terminal 8 Incoming tachometer shield
Terminals 9 & 10 Scaled tachometer output voltage to be used by the armature supply.
Terminals 11&12 Fault reset. A closure will reset a Fault.
Terminals 13&14 An internal N/O contact that closes with correct function of the unit
and opens with a Fault.
CN1
This connector is for the use of the DCM100-000 (Drive Circuit Monitor). This is an
optional digital meter sold by Carotron to be used to monitor the various functions
indicated on the schematic.
L1, 2
The 230/460vac power connects here. This power is any 2 lines of the 3 lines used for the
3 phase power used on the Armature supply or drive.
TB2
Terminal 1 is the positive (F1) terminal of the field output.
Terminal 2 is the negative (F2) terminal of the field output.
Terminal 3 is the A1 input terminal of the armature voltage.
Terminal 4 is the A2 input terminal of the armature voltage (If an Armature contactor is
used, these terminals must be connected to the motor side of the contactor).
3