GE Industrial Solutions AF-300C AC Drive - Manual (Page 65)

AF-300C GEK-85718
CONTROL CIRCUIT CONNECTION
AND OPERATION
Basic connectlons that are required for operation
from the Keypad Panel are shown in Figure 5-6 (this
is a factory installed jumper).
A wiring example of commonly used signals that
are optional for either Keypad Panel Operation or
External Operation (through control circuit terminals)
is shown in Figure 5-7.
Connection description is as follows:
308, 30C Fault Relay Output used for
alarm circuits, etc.
FM2 Used for external analog meter
when frequency indication is needed.
-- THR Connected to CM terminal at factory.
-- BX Connects to a normally open contact.
When motor coast stop is desired during nor-
mal operation, close this contact and remove
the RUN command (FWD or REV).
Termlnal Connectlons required for operatlon from
Keypad Panel are shown in Figure 5-8.
Operation is as follows:
-- Rotation Direction Press on the Keypad
for forward rotation or REV on the Keypad for
reverse rotation.
-- Frequency Setting The frequency reference
can come into the inverter in one of the follow-
ing ways when the LOCAL/REMOTE switch is
in the ‘LOCAL’ position.:
1. Set the motor speed by pressing the IN-
CREASE SPEED or DECREASE SPEED kevs
Connects to a normally closed contact. When
inverter STOP is desired through external alarm, on the Keypad Panel to increase or de-
open this contact. The inverter will trip on
crease the inverter output frequency.
and the motor will coast stop.
2. Multi-Step Speed Settings can be selected
by terminals X2, and X3. (Program-
-- RST -Connects to a normally open momentary mable preset frequencies in the Function
contact for resetting a fault externally. Codes can be selected.)
-- See Figure 5-9 for RUN Operation example.
C l X 3
L v B X
l l CAUTION: it is desired to use thermal interlocks, remove the
jumper from between terminals THR and CM, and connect nor-
mally closed thermal interlock contacts in series between THR
and CM.
r
5-6. FACTORY CONNECTIONS
: If it is desired to use thermal interlocks, remove the
between terminals THR and CM, and connect
thermal interlock contacts in series between THR
r
Figure 5-7. EXAMPLE OF COMMONLY USED SIGNALS
5-l 1