Electromagnetic Brake Interlock Function; Base Circuit Shut-Off Delay Time Function; Setting Method [G] [Wg] - Mitsubishi Electric MR-J5 Series User Manual

3.14

Electromagnetic brake interlock function

For the servo motor with an electromagnetic brake, this function activates the electromagnetic brake at servo-off, at error
occurrence, and others. By using the electromagnetic brake, the position can be maintained so that the servo motor will not
move due to external force. When this function is used on a system with vertical axis, a drop in vertical lift applications can be
prevented.

Base circuit shut-off delay time function

The base circuit shut-off delay time function prevents a vertical axis from dropping caused by delay of the electromagnetic
brake, as in the cases shown below:
• Under servo-off command
• At forced stop (EM2 is turned off)
• At alarm occurrence
• At network communication shut-off occurrence
The delay time from when MBR (Electromagnetic brake interlock) is turned off to base circuit shut-off can be set with the servo
parameters.
• This function does not operate on alarms that are not subject to the forced stop deceleration function.
• When the forced stop deceleration function is disabled, this function does not operate at forced stop (EM2 is
turned off), alarm occurrence, or network communication shut-off.

Setting method [G] [WG]

For specifications such as the power supply capacity and operation delay time of the electromagnetic brake,
refer to "Electromagnetic brake characteristics" in the following manual.
Rotary Servo Motor User's Manual (HK series)
For a selection example of the surge absorber for electromagnetic brake, refer to "Electromagnetic brake
characteristics" in the following manual.
Rotary Servo Motor User's Manual (HK series)
With [Pr. PC02 Electromagnetic brake sequence output], set a delay time (Tb) from the MBR (Electromagnetic brake
interlock) off to base circuit shut-off at servo-off. Refer to the following.
Page 105 When using the forced stop deceleration function
Servo parameter Symbol
PC02 MBR
Name Outline
Electromagnetic brake Set a delay time from the MBR (Electromagnetic brake interlock) off to base
sequence output circuit shut-off.
Initial value: 0 [ms]
3 BASIC FUNCTION
3.14 Electromagnetic brake interlock function
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