Baldor VS1SM, Installation & Operating Manual

Page: 51 / 71

MN761 Parameter Descriptions 7-23
7.4 I/O Group
Continued
Figure 7‐6
P1
P2
P8
CM
FX : t1=0
RX : t2=1
3- Wire :t8=17
FX
RX
Frequency
P8 (3- Wire)
t
18 = External trip - A (N.O.) : Normally open contact input. When a digital input is set to “Ext trip-A” is ON
(Closed), the drive displays the fault and turns off its output power. See Figure 7‐7.
19 = External trip - B (N.C.) : Normally closed contact input. When a digital input is set to “Ext trip-B” is OFF
(Open), the drive displays the fault and turns off its output power. See Figure 7‐7.
Figure 7‐7
Run command
P1
P7
P8
FX : t1=0
N.O. t2=18
CM
N.C. t8=19
P4(A contact)
Frequency
P5(B contact)
20 = Self-Diagnostic function : Defines a digital input to initiate the self-diagnostic function capability of the
drive unit. Parameter H60 = Self-Diagnostic function is used to define the test to conduct; IGBT fault and
ground fault, Output phase short/open circuit/ground fault or ground fault (IGBT fault/output phase
short/open circuit). See Chapter 8 - Customizing Your Application for advanced drive function description.
21 = Change from PID to V/Hz Operation : Selects a digital input to bypass the PID Feedback controller and
selects the default V/Hz control settings. See Chapter 8 Customizing your application for advanced drive
function.
22 = Exchange between second source and drive : When the defined input is turned ON, setting values in
P46 and P47 are used for control and reference to the drive. Settings for P46 and P47 can not be changed
while the digital input is closed.
23 = Analog Hold : Locks the analog speed reference at the last value when the input was closed.
Available when P40 = Frequency setting method is set in the range of 2-7.