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3-wire control mode 2
Different from the 3-wire control mode 1, 3-wire control mode 2 has a edge sen-
sitive characteristic for direction control terminals.
Step 1: Define 3 digital inputs
●
Set one of digital inputs as '35: Forward running (FWD)'
●
Set one of digital inputs as '36: Reverse running (REV)'
●
Set one of digital inputs as '25: 3-wire control'
Step 2: Activate '3-wire control mode 2' by setting '[E1.15] = 3'
Example:
Connected K1 to X1, set [E1.00] = '35: Forward running (FWD)', edge-sensitive.
Connected K2 to X2, set [E1.01] = '36: Reverse running (REV)', edge-sensitive.
Connected K3 to X3, set [E1.02] = '25: 3-wire control', level-sensitive.
Fig. 12-29: 3-wire control mode 2
K3 K1 K2 Running status
Open Edge / Inactive Edge / Inactive Stop
Closed Edge Inactive Running forward
Closed Inactive Edge Running reverse
Closed Edge Edge No change
Tab. 12-10: 3-wire control configuration
In 2-wire / 3-wire control mode, check and ensure that the direction
setting meets the requirement in the actual application. If the direc-
tion command is changed when the frequency converter is running,
[E0.18] 'direction change dead time' is active.
1-wire control
For details of 1-wire control mode, see
chapter "Adjust the setting frequency by
multi-speed function" on page 97 .
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Functions and Parameters VFC 3210
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