Omron R88M-W60010T User Manual page 277

Operation
• When the encoder divider rate is set to other than 2
phase difference for phases A and B is not 90 ° , but scatters for time T. (See the diagram below.)
Phase A
Phase B
t 1 t 2 t1
In this diagram, T represents the processing circuit output between phase A and phase B, and n is
an integer that satisfies the following formula (with digits below the decimal point discarded).
n = resolution/encoder divider rate
Phase A
Input to frequency divider
(processing circuit output)
Phase B
4-4-6 Brake Interlock (All Operating Modes)
Precautions for Using Electromagnetic Brake
■
• The electromagnetic brake Servomotor with a brake is a non-excitation brake especially for holding.
First stop the Servomotor, then turn OFF the power supply to the brake before setting the parame-
ters. If the brake is applied while the Servomotor is operating, the brake disk may become damaged
or malfunction due to friction, causing damage to the Servomotor.
Function
■
• You can set the BKIR (brake interlock) signal output timing to turn ON and OFF the electromagnetic
brake.
Parameters Requiring Settings
■
Parameter Parameter name
No.
Pn50F.2 Output signal selec-
tions 2: BKIR signal
selection
Pn506 Brake timing 1
Pn507 Brake command speed
Pn508 Brake timing 2
Note
As the default setting, BKIR is allocated to CN1 pins 1 and 2.
t1 t 1 t1 t 2
T
Be sure to allocate BKIR. (See note.)
This parameter sets the BKIR output timing.
Pn506: Sets lag time from BKIR OFF to Servo
OFF.
Pn507: Sets the rotation speed for turning BKIR
OFF.
Pn508: Sets the standby time from Servo OFF
to BKIR OFF.
n
(16,384, 8,192, 4,096, 2,048, 1,024, etc.), the
t 1 = n T, t2 = (n + 1) T
Explanation
Chapter 4
Reference
4-4-3 Torque Con-
trol (Torque)
4-4-4 Forward and
Reverse Drive Pro-
hibit (All Operat-
ing Modes)
4-81