5.7 H: Terminal Functions
188 YASKAWA ELECTRIC SIEP C710616 35D YASKAWA AC Drive E1000 Technical Manual
When an input terminal set to 40 closes, the drive operates in the forward direction. When an input set for 41 closes, the
drive will operate in reverse. Closing both inputs at the same time will result in an external fault.
Note: 1. This function cannot be used simultaneously with settings 42 and 43.
2. The same functions are assigned to terminals S1 and S2 when the drive is initialized for 2-wire sequence.
Figure 5.38
Figure 5.38 Example Wiring Diagram for 2-Wire Sequence
Setting 42, 43: Run and Direction Command for 2-wire Sequence 2
Sets the drive for 2-wire sequence 2.
When an input terminal programmed for 42 is closed, the drive will operate in the direction selected. When the input
opens, the drive will stop. The input programmed for 43 selects the direction. If it is open, forward direction is selected.
If it is closed, reverse direction is selected.
Note: This function cannot be used simultaneously with settings 40 and 41.
Setting 44, 45, 46: Offset Frequency 1, 2, 3
These inputs can be used to add offset frequencies d7-01, d7-02, and d7-03 to the frequency reference. Refer to d7-01 to
d7-03: Offset Frequency 1 to 3 on page 169 for details.
Setting 47: Node Setup
If the SI-S3 option card is connected, closing this terminal will set a node address for operation on a CANopen network.
Setting 50: Motor Pre-Heat 2
Sets the DC preheat current for multi-function input setting 50 as a percentage of motor rated current (E2-01). Refer to
setting 60: Motor Pre-Heat 1 for detail.
Setting 60: Motor Pre-Heat 1
In order to prevent condensation on the motor windings, a DC current can be circulated through the windings. The heat
produced by the current in the windings will prevent the moisture from condensation on the wire. Motor Pre-Heating can
only be initiated by closing a digital input programmed as a Motor Pre-Heat input (H1-0 = 60). The level of the DC
current used by the Motor Pre-Heat function is determined by b2-09.
A Run input will be given priority over a Motor Pre-Heat input. When the Run command is removed, if the Motor Pre-
Heat input is still closed, the motor pre-heating will resume.
Figure 5.39
Figure 5.39 DC Injection Braking Input Timing Diagram
Setting 61, 62: External Speed Search Command 1, 2
These input functions can be used to enable Speed Search even if parameter b3-01 = 0 (no Speed Search at start). Refer
to Activating of Speed Search on page 142 for details on how to use the input signals. Refer to b3: Speed Search on
page 139 for more about Speed Search.
Note: Operator error oPE03 will result if both Speed Search 1 and Speed Search 2 are set to the input terminals at the same time.
S1
S2
SC
Drive
Forward Run
Reverse Run
Digital Input Common
DC Injection braking
command
FWD Run command
Output frequency
Motor
Pre-Heat 1
Motor
Pre-Heat 1
Motor Pre-Heat 1
Start Frequency
(b2-01)
OFF
OFF OFF
OFFON
ON
SIEP_C710616_35.book 188 ページ ２０１５年１１月３０日 月曜日 午後２時２分
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