Delta MH300 Series - Page 500

Chapter 12 Description of Parameter Settings
MH300
12.1-10-5
2: Phases A and B are pulse inputs, forward direction if B-phase leads A-
phase by 90 degrees
.
3: Phase A is a pulse input and phase B is a direction input (low input =
reverse direction, high input = forward direction).
4: Phase A is a pulse input and phase B is a direction input (low input =
forward direction, high input = reverse direction).
5: Single-phase input (MI7)
 When this setting is different from the Pr.10-02 setting and the source of the Frequency command
is pulse input (Pr.00-20 set to 5), it causes a four-times frequency problem.
Example:
Assume that Pr.10-01 = 1024, Pr.10-02 = 1, Pr.10-16 = 3, Pr.00-20 = 5, MI = 37 and ON, then the
pulse needed to rotate the motor one revolution is 4096 (1024*4), with a four-times frequency
problem.
 Assume that Pr.10-01 = 1024, Pr.10-02 = 1, Pr.10-16 = 1, Pr.00-20 = 5, MI = 37 and ON, the pulse
needed to rotate the motor one revolution is 1024 (1024*1), without four-times frequency problem.
 When using two-phase pulse input, you must set pulse direction to MI6, and enter the pulses to
MI7.
 When using single-phase pulse input, MI6 is invalid, you must enter the pulses to MI7 and forbid
connecting to any signals.
 When Pr.10-16 = 5, you cannot set Pr.10-02 as 5 (single-phase input, MI7) to execute closed-
loop control.
 The setting steps when using the MI7 single-phase pulse input as the frequency command:
1. Set Pr.00-20 = 4: Pulse inputs without direction command
2. Set Pr.10-00 = 0: Disabled
3. Set Pr.10-01 for motor pulse per revolution (ppr)
4. Set Pr.10-16 =5: Single-phase pulse input
5. Set Pr.00-04 = 22 to check if the pulse input frequency is right.