Inspection And Maintenance; Inspection Items; Memory Backup - Fuji Electric Faldic-a RYS-R Series User Manual

9. INSPECTION AND MAINTENANCE

9.1 Inspection
(1) Before inspection
Because the amplifier is composed of electronic components, normally inspection is not necessary.
Because the motor is a synchronous type (brushless) motor, the motor does not have the part to inspect usually.
Both the amplifier and motor are maintenance-free. However, perform periodic inspection to prevent accidents beforehand and ensure the
reliability of equipment.
DANGER
! ! ! ! Prior to inspection, turn off power and wait for at least five minutes. Otherwise, there is a risk of electric shock.
! ! ! ! Do not touch the amplifier when the commercial power is supplied. Otherwise, there is a risk of electric shock.

(2) Inspection items

Device Inapplicable item
Motor Abnormal vibration (on motor-shaft and bearing-housings, etc.)
Direct exposure to water, steam or oil
Misalignment of mechanical coupling at shaft extension
Amplifier Loose screws of terminal block (board) and fastening parts
Excessive accumulation of dust
Nasty smell, damage due to heat, external deformation, cable-wire discontinuation, etc.
Ensure that the "CHARGE" LED is extinguished (goes out) on keypad panel, before the checking of electrical wirings.
CAUTION
Withstand voltage and insulation test with megger and connection test of PC-board and terminals of amplifier must not
be conducted. Otherwise, there is a risk of damage to amplifier or encoder built in the motor.

9.2 Memory backup

(1) Memory backup
An electrically rewritable EEPROM is used for retaining the following items after turning off power supply.
(i) Basic para. and system para.
(ii) Positioning data (RYS-L type amplifier only)
(iii) Alarm detection history
Each area can be initialized by turning off the run command [RUN] of the amplifier (while motor is de-energized).
(a) Initialization of parameter
To initialize, select the para. initialization [
Notice : After the initialization, be sure to turn on power again.
(b) Initialization of positioning data (RYS-L type amplifier only)
To initialize, select the positioning data initialization [
Notice : After the initialization, be sure to turn on power again.
] in the test running mode and press the ENT key.
The initialization is not allowed if rewrite is inhibited by system para. 94.
The initialization is impossible while the motor is energized with the [RUN] signal on.
The initialization is not allowed if rewrite is inhibited by system para. 95.
The initialization is impossible while the motor is energized with the [RUN] signal on.
] in the test running mode and press the ENT key.
9-1
MHT260a (Engl.)