BENSHAW RSi SG Series, Instruction Manual

Page: 136 / 218

Chapter 6 - Parameter Description [I/O]
6-48
[Up, Down]
The speed of the drive can be controlled using two
multi-function input terminals. Externally connected
momentary switches can increase (Up) or decrease
(Down) the speed of the drive. Setting limit is
Maximum frequency. See also FUN-75 and FUN-76
for saving Up/Down speeds.
Up/Down Operation
[3-Wire]
This function is used for 3-wire start/stop control.
This function is used with a momentary push button
(NO) to start and a momentary (NC) pushbutton for
stop.
Wiring for 3-Wire Operation, Mx set to ‘3-Wire’
[Ext Trip]
This is a normally open contact input. When a terminal
set to ‘Ext Trip’ is ON, the drive cuts off its output and
displays an external fault. This can be used as an
external latch trip or used when an external motor
overload protection relay is used. The logic is
programmable in I/O-95 [Normal Open/Normal Close
select].
[Pre-Heat]
When a digital input, programmed to Pre-Heat is
activated, the drive applies low levels of DC current to
the motor. See FUN-10, 11 and 12.
[iTerm Clear]
This function is used for PID control. When this
terminal is ON, the accumulated value of the integrator
used by the I-Gain is set to ‘0’. Refer to the PID
Control Block Diagram for more information.
[Open-loop]
This function is used to switch the control mode of the
drive from PID mode to V/F mode (Open Loop).
When a digital input, programmed to Open Loop is
activated, DRV-03 [Drive Mode] and DRV-04
[Frequency Mode] control the drive.
Note: This function is only used when the drive is
stopped.
[LOC / REM]
When the Local / Remote input is activated (ON), the
Remote parameters, DRV-91 and DRV-92 control the
drive command and drive frequency. When the input is
deactivated (OFF), the Local parameters DRV-03 and
DRV-04 control the drive command and drive
frequency.
M1-CM
‘Up’
ON
Output Frequency
Time
Time
M2-CM
‘Down’
ON
Time
FX-CM
ON
Time
Freq.
Max.
Mx-CM
ON
Output Frequency
Time
Time
FX-CM ON
Time
RX-CM
ON
Time
Freq.
Max.
Freq.
max.
Forward Reverse 3-Wire
Stop
M7 M8 Mx CM