Protect Function - Nakanishi E3200 Series Operation Manual

4. Input/Output Connector A, B Pin Configuration
1
14
2
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
25
13
Connector A

PROTECT FUNCTION

17
1. Warning Function
Always check the control unit, motor, spindle and the condition of the cooling air prior to
use. This will help prevent system errors that will result in undesired operating conditions.
(1) The Warning LED [ 20 ] will flash.
(2) The Warning Code (listed in Table 2) will be displayed on the Digital Speed Indicator [ 11 ] .
(3) A Warning Signal is output to the Warning Signal (PIN No. 20 : WARNING) of
Input/Output Connector A.
Table 2
Warning Code Warning Function
A0 Motor Cord
A1 Low Air Pressure
A2 Control Unit Overheat
A3 Over Load
A4 Emergency Stop
Over Air Pressure
A5
CAUTION
When the Warning LED [ 20 ] flashes, please check the Warning code.
31
1
9
2
10
3
11
4
12
5
13
6
14
7
15
8
Connector B
Fig. 44
Trouble
Motor Cord or Connector is disconnected or misaligned
Low Air Pressure
Internal Temperature of the Control Unit too High
Motor Torque load exceeding safe limits
Emergency Stop system activated
Over Air Supply
2. Detection of unsafe operating conditions
Always check the control unit, motor, spindle and the condition of the cooling air prior to
use. This will help prevent system errors that will result in undesired operating conditions.
When an Error Occurs the following events happen :
(1) Motor stops
(2) The Error LED [ 19 ] will flash.
(3) Error Code (listed in Table 3) will be displayed on the Digital Speed Indicator [ 11 ] .
(4) An Error signal is output to the Error Signal (PIN No. 8 : ERR) of Input/Output Connector.
3. Resetting System after Error Codes
There are 2 methods of releasing error codes.
(1) Push Error Reset Switch [ 18 ] RESET on the front panel.
(2) Switch the signal on PIN4 (RESET) of Input/Output Connector A OFF (Open)
(Closed) OFF (Open).
When releasing Error using the Motor Start/Stop (Pin No. 14 : START) is ON (Closed),
OFF (Open) Motor Start/Stop before resuming operation.
Table 3
Error Code Problem Area
E1 Excess Current
E2 Over voltage
E3 Motor Sensor
E4 Control Unit Overheat
E5 Brake Circuit Trouble
E6 Rotor Lock
E7 Low Air Pressure
E8 Torque Overload
Communication
E9
Interception
External Control Signal
EA
Error
EL Incompatible Motor
EH Over Speed
EE Emergency Stop Error
EC Internal Memory Error
CAUTION
• When using the Input/Output Connector and external monitoring please check
and resolve the source of the trouble anytime a Warning Code is displayed.
• When the error occurs for the damage to the internal of the control unit, can not
release the error. Please send to Nakanishi repairs.
Trouble
Motor Current beyond safe limits
Motor Voltage beyond safe limits
Trouble with the sensor signal in the motor
Internal Temperature of the Control Unit too High
Trouble with the motor brake circuit
Motor stalled for more than 3 seconds
Inadequate air supplied for more than 4 seconds during rotation
or inadequate air supply when motor start commanded.
Torque limits exceeded for too long a period of time.
Intercept communication with Selector Unit (NE261)
(Only if using NE260 connect to NE261)
External control sequencing problem
Incompatible motor is connected to the system.
Rotating speed is beyond the set speed for too long
Safety Relay has been activated and the Emergency Stop
System has stopped the motor
Trouble with memory (EEPROM)
ON
32