JMC JASD Series Servo Drives
Overview
Chinese servo drives by JMC (Just Motion Control, aka Shenzhen Just Motion Control Electromachics Co.,Ltd.) that support both incremental ABZ/UVW encoders as well as Tamagawa 17-bit (and maybe 23-bit?) encoders. It is meant for use with their JASM series servo motors.
Model Numbers
V1.3 manual:
- Page 14 (13 in the PDF) shows the servo drive model number scheme
- Page 16 (15 in the PDF) shows the servo motor model number scheme
V1.0 manual:
Wiring Diagram
V1.3 manual:
- Page 18 (17 in the PDF) shows an overview of the wiring
- Page 19 (18 in the PDF) shows how to wire single phase vs three phase
- Page 20 (19 in the PDF) shows the locations and descriptions of the various ports/terminals
- Page 21 (20 in the PDF) shows the CN1 "Control" connector pinout
- Page 25 (24 in the PDF) shows the CN2 "Encoder" connector pinout
- Page 27 (26 in the PDF) shows the CN3/CN4 "Communication" ports (CAN and RS-485)
- Page 28 (27 in the PDF) shows the CN5 "RS-232" connector
- Page 28 (27 in the PDF) shows the power terminal strip pinout
- Page 39 (38 in the PDF) shows example wiring for position mode control
- Page 45 (44 in the PDF) shows example wiring for velocity mode control
- Page 47 (46 in the PDF) shows example wiring for torque mode control
V1.0 manual:
- Page 12 shows the CN1 "I/O" connector pinout
- Page 14 shows the CN2 "Feedback" connector pinout
- Page 15 shows the CN3 "Communication 1" connector pinout (RS-232 and RS-485)
- Page 15 shows the CN4 "Communication 2" connector pinout (RS-485 only)
- Page 16 shows the power terminal strip pinout
- Page 24 shows example wiring for position mode control
- Page 26 shows example wiring for velocity mode control
- page 28 shows example wiring for torque mode control
Servo motor V1.0 manual:
- Page 23 (22 in the PDF) shows the motor power and encoder cable pinouts
Dimensions
V1.3 manual:
- page 30 (29 in the PDF) shows the dimensions
V1.0 manual:
- Page 17 shows the dimensions
Software
"software for JMC 220v ac servo motor driver (JASD4002,JASD7502,JASD15002)":
1911130370.zip ***DEAD LINK*** ("AC servo motor adjust software", Version 1.7.6, Copyright 2018)
1911130370.zip (Wayback Machine)
From:
Software -Support-Shenzhen Just Motion Control Electromechanics Co., Ltd.
The RS-232 baud rate corresponds to the setting PA00-21, even parity, 1 stop bit. The slave address seems to be set from PA00-23. It seems to only want to communicate over RS-232 and not RS-485, though maybe there is a trick to it.
| Micro USB Pin | Direction | DE9 Pin (DTE) | Function |
|---|---|---|---|
| 1 (VCC) | drive → PC | +3.3V (for isolator?) | |
| 2 (D-) | drive → PC | 2 (RXD) | PC's RS-232 RX in |
| 3 (D+) | drive ← PC | 3 (TXD) | PC's RS-232 TX out |
| 4 (ID) | |||
| 5 (GND) | drive ↔ PC | 5 (GND) | GND (digital common) |
To be able to write certain groups of parameters, you must "unlock" them either from the servo drive keypad using AF_unL, or by changing parameter P10-22, which cannot be navigated to by the keypad. You must instead do it over RS-485 or RS-232 via the PC software. The software has an unlock dialog that requires the passwords: the "Primary authority" password is jmc and the "Super authority" password is jmc2018, which allow you to access the P10-xx parameters.
Parameters
V1.3 manual:
- Page 67 (66 in the PDF) has the parameter table
- Page 82 (81 in the PDF) has the parameter descriptions
V1.0 manual:
Alarm Codes
V1.3 manual:
- Page 114 (113 in the PDF) shows the list of alarm codes
V1.0 manual:
- Page 52 shows the list of alarm codes
Replacement Parts
CN1 Control
- 3M 10150-3000PE (solder cup connector)
- 3M 10350-52F0-008 (backshell w/ hooks)
- 3M 10350-52A0-008 (backshell w/ screws)
CN2 Feedback
- 3M 10120-3000PE (solder cup connector)
- 3M 10320-52F0-008 (backshell w/ hooks)
- 3M 10320-52A0-008 (backshell w/ screws)
Barrier Block Screws
JASD3000
The spade/ring terminals must accommodate M4 screws, and be narrower than the 8.1mm spacing between barriers.
PDFs
JMC JASD Series Servo Drive User Manual (v1.3)
JMC JASD Series Servo Drive User Manual (v1.0)
JMC EtherCAT Servo Drive User Manual (v1.3, 2019-12-11)
Online Resources
JMC JASD Series AC Servo Drives User's Manual (V1.3)
JMC JASD Series AC Servo Driver User Manual (V1.0)
JMC JASD Series AC Servo Selection Manual (V1.0)
User Manual -Support-Shenzhen Just Motion Control Electromechanics Co., Ltd.