Danfoss 176F7300, Manual, Page: 39 / 90

VLT ® MICRO
8. d12, d13: External Base Block – Parameter values d12, d13 program Multi-functional
Input Terminals: M1 (Pr.38), M2 (Pr.39), M3 (Pr.40), M4 (Pr.41) or M5 (Pr.42) for
external Base Block control. Value d12 is for normally open (N.O.) input, and value
d13 is for a normally closed input (N.C.).
Application Note:
When the programmed inputs for d12 or d13 are used to activate base block control,
the motor will free run. When base block control is deactivated, the AC drive will start its
speed search function and synchronize with the motor speed then accelerated to
programmed frequency.
INPUT
POWER
OUTPUT
FREQUENCY
OUTPUT
VOLTAGE
Allowable maximum
power loss time
Pr.33
Pr.32 = d0001
Speed search starts with
the frequency reference value
Min. baseblock
time
Speed search
operation
Speed synchronization
detection
Pr.34
B.B. (N.O.)
Setting by d12
B.B. (N.C.)
Setting by d13
Mx "Closed': Operation available.
Mx "Open": Operation available.
GND
VLT MICRO
Operation
Command
Mx-GND
ON
ON
ON
ON
ON
OFF
Setting Value
Freq.
P10 P11 P12 P13 P10 P13
Time
37