The PTC must exhibit the characteristics shown in
in one motor phase. The motor overload protection of the drive
expects 3 of these PTCs to be connected in a series.
Resistance ( )
Class F
150 ºC
Class H
180 ºC
Tr: threshold value
Temperature
Tr’
Tr + 5K (oH4 Fault Level)
Tr
Tr - 5K (oH3 Alarm Level)
Figure i.21 Motor PTC Characteristics
Set up overheat detection using a PTC using parameters L1-03, L1-04, and L1-05 as explained in the following sections.
u
Terminal AM/FM Signal Selection
The signal type for terminals AM and FM can be set to either voltage or current output using jumper S5 on the terminal board
. When changing the setting of jumper S5, parameters H4-07 and H4-08 must be set accordingly.
The default selection is voltage output for both terminals.
Table i.16 Jumper S5 Settings
Terminal
Voltage Output
Current Output
Terminal AM
AM
FM
V
I
AM
FM
V
I
Terminal FM
AM
FM
V
I
AM
FM
V
I
Table i.17 Parameter H4-07 and H4-08 Details
No.
Parameter Name
Description
Setting
Range
Default
Setting
H4-07
Terminal AM signal level selection
0: 0 to 10 Vdc
1: -10 to 10 Vdc
2: 4 to 20 mA
0 to 2
0
H4-08
Terminal FM signal level selection
u
MEMOBUS/Modbus Termination
This drive is equipped with a built-in termination resistor for the RS-422/485 communication port. DIP switch S2 enables or
disabled the termination resistor as shown in
. The OFF position is the default. The termination resistor should be
placed to the ON position when the drive is the last in a series of slave drives.
Refer to Switches and Jumpers on the Terminal
Table i.18 MEMOBUS/Modbus Switch Settings
S2 Position
Description
ON
Internal termination resistor ON
OFF
Internal termination resistor OFF (default setting)
i.3 Electrical Installation Safety
YASKAWA ELECTRIC TOEP YAIP1U 03B YASKAWA AC Drive – P1000 Safety Precautions
43
Summary of Contents for P1000
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