GE Industrial Solutions AF-300 G11 - Manual (Page 72)

5-19
Data subject to change without notice 7/07. © 2007 GE Drives
Self-hold selection (HLD)
Value 6: This selection is used for 3-wire operation. The
FWD or REV signal is self-held when HLD-CM is on, and
this self-hold is cleared when HLD-CM is turned off. To
use this HLD terminal function, assign 6 to the target
digital input terminal.
Coast-to-stop command (BX)
Value 7: When BX and CM are connected, drive output is
cut off immediately, and the motor starts to coast to a
stop. An alarm signal is neither output nor self-held. If
BX and CM are disconnected when the operation
command (FWD or REV) is on, operation begins at the
start frequency. To use this BX terminal function, assign
value 7 to the target digital input terminal.
Alarm reset (RST)
Value 8: If a drive trip occurs, connecting RST to CM
clears the alarm output (for any fault). Disconnecting
them clears the trip indication and restarts operation. To
use this RST terminal function, assign value 8 to the
target digital input terminal.
External alarm (THR)
Value 9: Disconnecting THR and CM during operation
cuts off drive output (i.e., motor starts to coast to a stop)
and outputs alarm OH2, which is self-held internally and
cleared by RST input. This function is used to protect an
external brake resistor and other components from
overheating. To use this THR terminal function, assign
value 9 to the target digital input terminal. ON input is
assumed if this terminal function is not set.
Jogging (JOG)
Value 10: This function is used for jogging operation to
position a workpiece. When JOG and CM are con-
nected, the
operation is performed with the jogging frequency set in
function code C20 while the operation command (FWD-
CM or REV-CM) is on. To use this JOG terminal function,
assign 10 to the target digital input terminal.
Frequency setting 2/frequency setting 1
Value 11: This function switches the frequency setting
method defined by function codes F01 and C30 using an
external digital input signal.
Input Signal Selected Frequency Setting
11
off F01 FREQ CMD1
on C30 FREQ CMD2
Motor 2/Motor 1
Value 12: This function switches motor constants using
an external digital input signal.
This input is effective only when the operation command
to the drive is off and operation has stopped and does
not apply to the operation at 0Hz.
Input Signal Selected Motor
12
off Motor 1
on Motor 2
Related Functions: A01-A18
DC injection brake command (DCBRK)
Value 13: This function is used for DC Brake time control
by digital input including extending braking operation
during stopping as well as during start up into a rotating
load. When the external digital input signal is on, DC
injection braking starts when the drive’s output frequency
drops below the frequency preset in function code F20
after the operation command goes off. (The operation
command goes off when the STOP key is pressed during
keypad panel operation or when both terminals FWD and
REV go off during terminal block operation.) The DC
injection braking continues while the digital input signal
is on. In this case, the longer of the following times is
selected:
- The time set with function code F22
- The time during which the input signal is set ON
Input Signal Selected Operation
13
off DC injection brake command not given
on DC injection brake command given
Forward
rotation
ON
O N ON
O N O N F WD-CM
REV-CM
BX-CM
Ou tput
Frequency
Ignored
Forward
rotation Forward
rotation
FWD
REV
HLD
CM
FWD
REV
STOP
Output
Frequency
DC Brake
Frequency
DC Brake
FWD-CM
DCBRK-CM
ON
ON ON
ON
ON ON