31
32
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)
ON
(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.
Error Code
Problem Area
Trouble
E1
E2
E3
E4
E5
E6
E8
EA
EH
EE
EC
E7
Excess Current
Over voltage
Motor Sensor
Control Unit Overheat
Brake Circuit Trouble
Rotor Lock
Low Air Pressure
Torque Overload
External Control Signal
Error
Over Speed
Emergency Stop Error
Internal Memory Error
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.
External control sequencing problem
E9
Communication
Interception
Intercept communication with Selector Unit (NE261)
(Only if using NE260 connect to NE261)
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)
Motor Current beyond safe limits
Motor Voltage beyond safe limits
EL
Incompatible Motor
Incompatible motor is connected to the system.
Table 3
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.
CAUTION
When the Warning LED
[
20
]
flashes, please check the Warning code.
Fig. 44
Connector A
14
15
16
17
18
19
20
21
22
23
24
25
1
2
3
4
5
6
7
8
9
10
11
12
13
4. Input/Output Connector A, B Pin Configuration
Connector B
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
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.
PROTECT FUNCTION
Warning Code
Warning Function
Trouble
A0
A1
A2
A3
Motor Cord
Low Air Pressure
Control Unit Overheat
Over Load
Internal Temperature of the Control Unit too High
Motor Torque load exceeding safe limits
A4
A5
Emergency Stop
Over Air Pressure
Emergency Stop system activated
Over Air Supply
Motor Cord or Connector is disconnected or misaligned
Low Air Pressure
Table 2
17
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.
NE260̲K0581E̲e̲0905 09.9.22 1:16 AM ページ 31
