Chapter 6 – Parameters
ACH 500 Programming Manual 6-9
DI4,5,6
Refer to DI1,2,3.
Group 10.4 System
Contr Inputs
These parameter values can only be altered with the ACH 500 stopped. The
Range/Unit column in Table 6-6 shows parameter values. The text following
the table explains parameter values in detail.
Table 6-6 Group 10.4
1 RUN ENABLE
This parameter selects the source of the Run Enable signal.
YES
Run Enable signal active. Drive is ready to start without an external Run
Enable signal.
DI1 – DI6
To activate the Run Enable signal, the selected Digital Input must be
connected to +24 V DC. If the Digital Input goes to 0 V DC, the drive will
coast to stop.
2 FAULT RESET
SELECT
NOT SEL/DI1 – DI6/ON STOP
If you select NOT SEL, fault reset is done from the Keypad. If a digital input
is selected, fault reset is done from an external switch or from the keypad.
Reset is activated by opening a normally closed contact (negative edge on
digital input). If ON STOP is selected, a fault is reset by giving a stop
command from the active STOP signal, or from the Keypad.
3 PARAM. LOCK SEL
This parameter selects the control location for Parameter Lock.
If you select OP DATA 20, Parameter Lock is controlled with Operating
Data Parameter 20 (Parameter Lock). If you select a Digital Input (1 – 6), 0 V
DC equals Open and 24 V DC equals Locked.
4 EXTERNAL FAULT
NOT SEL
DI1 – DI6
Input for external fault device such as a motor overload relay or fire alarm.
The device should have a normally closed contact. The digital input must be
connected to +24 VDC. If the digital input goes to 0 VDC, the drive will coast
to stop and a fault message will display.
Parameter Range/Unit Description
1 RUN ENABLE Yes/DI1–DI6 Run enable input.
2 FAULT RESET SELECT Not Sel/DI1–DI6/
On Stop
Fault/Warning/Supervision reset
input.
3 PARAM LOCK SEL Op Data 20/
DI1–DI6
Parameter lock input.
4 EXTERNAL FAULT Not Sel/DI1–DI6 External fault input.
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