5-2
5-1
Measures when Trouble Occurs
5-1-1 Preventive Checks Before Trouble Occurs
This section explains the preventive checks and analysis tools required to determine the
cause of trouble when it occurs.
H
Check the Power Supply Voltage
•
Check the voltage to the power supply input terminals.
Main-circuit Power Supply Input Terminals (L1, L2, (L3))
R88D-WT
j
HF
(450 to 3 kW): Three-phase 380/480 V AC (323 to 528 V) 50/60 Hz
R88D-WT
j
H
(30 to 400 W): Single-phase 200/230 V AC (170 to 253 V) 50/60 Hz
(500 W to 6 kW): 3-phase 200/230 V AC (170 to 253 V) 50/60 Hz
R88D-WT
j
HH
(750 to 1.5 kW): Single-phase 200/230 V AC (187 to 253 V) 50/60 Hz
R88D-WT
j
HL (30 to 200 W): Single-phase 100/115 V AC (85 to 127 V) 50/60 Hz
Control-circuit Power Supply Input Terminals (L1C, L2C)
R88D-WT
j
H(H): Single-phase 200/230 V AC (170 to 253 V) 50/60 Hz
R88D-WT
j
HL: Single-phase 100/115 V AC (85 to 127 V) 50/60 Hz
R88D-WT
j
HF: 24 VDC (20.4 to 27.6 V)
If the voltage falls outside of this range, there is a risk of misoperation, so make sure that the power
supply is correct.
•
Make sure that the voltage of the sequence input power supply (+24 VIN Terminal (CN1-47 pin)) is
within the range 23 to 25 VDC. If the voltage falls outside of this range, there is a risk of misoperation,
so make sure that the power supply is correct.
H
Selecting Analysis Tools
D
Check Whether an Alarm Has Occurred
•
If an alarm has occurred, check the alarm code (A.
jj
), and perform analysis depending on the alarm
code.
•
If an alarm has not occurred, perform analysis depending on the error.
Note
Refer to
5-3 Troubleshooting
in either case.
D
Types of Analysis Tools
•
The types of analysis tools are as follows:
Servo Driver Indicators and Parameter Unit
S
Perform analysis using the display (7-segment LEDs) and the operation keys on the front panel of
the Servo Driver. You can also perform the same operation using the Parameter Unit (R88A-
PR02W). This manual explains analysis using these methods.
Troubleshooting
Chapter 5
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