YASKAWA E1000 Technical Manual page 188

5.7 H: Terminal Functions
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
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.
d7-03: Offset Frequency 1 to 3 on page 169
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
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).
to Activating of Speed Search on page 142
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.
188
Forward Run
Reverse Run
Figure 5.38 Example Wiring Diagram for 2-Wire Sequence
for details.
OFF
DC Injection braking
command
OFF
FWD Run command
Motor
Pre-Heat 1
Output frequency
Figure 5.39 DC Injection Braking Input Timing Diagram
for details on how to use the input signals.
Drive
S1
S2
SC
Digital Input Common
ON
ON
Motor Pre-Heat 1
Start Frequency
(b2-01)
YASKAWA ELECTRIC SIEP C710616 35D YASKAWA AC Drive E1000 Technical Manual
common_
TMonly
Refer to d7-01 to
OFF
OFF
Motor
Pre-Heat 1
common_
TMonly
Refer to b3: Speed Search on
Refer