Chapter 6 – Parameters
ACH 500 Programming Manual 6-13
EXT. CTRL
External control selected.
REF 2 SEL
Reference 2 selected.
PRESET SPD
A Preset Speed (1 – 7) selected.
DC BUS LIM
Voltage regulator is activated.
FREQ1 LIM
Output frequency has exceeded the Supervision Limit 1. Refer to Parameter
30.3.1 (Output Freq 1 Func).
FREQ2 LIM
Output frequency has exceeded the Supervision Limit 2. Refer to Parameter
30.3.4 (Output Freq 2 Lim).
CURRENT LIMIT
Motor current has exceeded the set Current Supervision Limit. Refer to
Parameter 30.3.6 (Current Limit).
REF 1 LIMIT
Reference 1 has exceeded the set Supervision Limit. Refer to Parameter
30.3.8 (Ref 1 Limit).
REF 2 LIMIT
Reference 2 has exceeded the set Supervision Limit. Refer to Parameter
30.3.10 (Ref 2 Limit).
AT SPEED
The output frequency is equal to the set frequency (+/- .25 Hz of set
frequency).
HIGH TEMP
High heatsink temperature indication with hysteresis. Relay activates at 60°C
(140°F), and opens at 40°C (104°F).
P&F AUTOM
When Pump and Fan macro is selected, some relays are automatically
reserved for the lag pumps. When a relay is reserved for Pump and Fan
sequencing, P&F AUTOM will appear in this parameter.
2 RELAY RO2 OUTPUT
Refer to Parameter 10.6.1 (Relay RO1 Output).
3 RELAY RO3 OUTPUT
Refer to Parameter 10.6.1 (Relay RO1 Output).
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