HP Anab EQ5 - Manual (Page 66)

TECO –Westinghouse Motor Company Function Explanation 60
The analog input (terminals 12 and C1) can be switched
between forward and inverse operations by an external
digital input signal.
Set value
input signal
Function selected
21
off
Forward operation when forward
operation is set and vice versa
on
Inverse operation when forward
operation is set and vice versa
This function is invalid when the PID control is
selected(H20: 1 or 2).
When a contactor is installed on the output side of the
inverter, the contactor opens at the time of a momentary
power failure, which hinders the reduction of the DC
circuit voltage and may prevent the detection of a power
failure and the correct restart operation when power is
recovered. The restart operation at momentary power
failure can be performed effectively with power failure
information provided by an external digital input signal.
Set value
input signal
Function selected
22
off No momentary power failure detection
operation by digital input
on Momentary power failure detection
operation by digital input
Frequency and operation commands from the link can be
enabled or disabled by switching the external digital input
signal. Select the command source in H30, "Link
function." Assign value "24" to the target digital input
terminal and enable or disable commands in this input
signal state.
Set value
input signal
Function selected
24
off Link command disabled.
on Link command enabled.
Assigning value "25" to a digital input terminal renders the
terminal a universal DI terminal. The ON/OFF state of
signal input to this terminal can be checked through the
RS-485 and BUS option.
This input terminal is only used to check for an incoming
input signal through communication and does not affect
inverter operation.
The start characteristics function (pick-up mode) in
function code H09 can be enabled or disabled by
switching the external digital input signal. Assign value
"26" to the target digital input terminal and enable or
disable the function in this input signal state.
Set value
input signal
Function selected
26
off Start characteristic function disabled
on Start characteristic function enabled
Normally this terminal should be “ON”, when this terminal
goes off during motor running, the motor decelerates to
stop, and outputs alarm “Er6 “. When the inverter is stop
by STOP1/STOP2 signal, the signal should be kept on
4ms or longer.
In case of terminal [STOP2], the deceleration time is
determined by E15( DEC TIME4).
This function is prioritized under any operation (Terminal.
Keypad, Communication...operation). However when the
torque limiter/regeneration avoidance at deceleration is
selected, the time which is set by deceleration time may
be longer.
Inverse mode changeover [IVS]
Interlock signal (52-2) [IL]
Related function
F01, C30
Universal DI (U-DI)
Pick up start mode [STM]
Related function
H09
Related function
H30
Synchronization command ( Option ) [SYC]
ON
Er6
ON
ON ON
FWD or REV
[STOP1] or
[STOP2]
Alarm
Output
Frequency
In case of [STOP2],
time is fixed by E15
(EDC TIME4)
Forced stop command with Deceleration [STOP1]
Forced stop command with Deceleration time 4 [STOP2]
Related function
F14