Manually Releasing The Magnetic Brakes - Mitsubishi MELDAS HS Series Specifications And Instruction Manual

6-4-2 Manually releasing the magnetic brakes

The intelligent servomotor has a relay for controlling the brakes in the amplifier, so the brakes cannot
be released even if power is supplied to the 24V power terminal (BR, RG) for the cannon plug brakes.
Release the brakes with the following method when the brakes need to be released for handling when
assembling, adjusting or servicing the machine.
(1) Method 1
Remove the amplifier section and input the 24V power to the motor brakes. There is no polarity.
Refer to section "9-3. Replacing the unit" for details on removing and installing the amplifier
section.
The amplifier terminal is a connector, so prepare the following connector beforehand.
Plug housing
Socket contact : BHF-001T-0.8BS (J.S.T. Mfg Co., Ltd.)
(2) Method 2
Enter the brake release mode by changing the MON signal, normally used for the axis No.
selection, several times.
1) Prepare the circuit operation box shown with the dotted line below, and connect with the
intelligent servomotor as shown in the drawing.
2) Open SW1 and SW2.
3) Input 200VAC to the LL1 and LL2 terminals. → The LED will turn ON.
4) Turn SW1 ON.
5) Turn SW2 ON.
6) Turn SW2 OFF.
7) Input 24VDC to the BR and RG terminals.
8) Thereafter, when SW2 is turned ON the brakes will be applied, and when turned OFF, the
brakes will be released.
Intelligent
servomotor
Control
power
RA
Control
circuit
Chapter 6 Wiring
: SMP-02V-BC
Operation box
L11
NFB
L12
BR
RG
ALM
330Ω
*
ALM
MON
SW2 SW1
LG
All other pins are open.
→ The LED will flicker.
→ The LED will turn OFF.
→ The LED will turn ON, and the relay in the
amplifier will turn ON.
→ The brakes will be released.
200VAC
24VDC
For OFF at
emergency
For status
indication
680Ω
6–12