ABB ACH 501 User Manual

Chapter 6 – Parameters
ACH 500 Programming Manual 6-39
Figure 6-17 shows an example of a supervision indication.
Figure 6-17 Supervision Indication
1 OUTPUT FREQ 1
FUNC
This parameter allows you to activate an output frequency supervision
function. Relay outputs such as Parameters 10.6.1 (Relay RO1 Output),
10.6.2 (Relay RO2 Output), and 10.6.3 (Relay RO3 Output) and displays are
used to indicate that the output frequency drops below (LOW LIMIT) or
exceeds (HIGH LIMIT) the supervision limit.
NO
Supervision not used.
LOW LIMIT
Supervision will activate if value is below the limit set.
HIGH LIMIT
Supervision will activate if value is above the limit set.
2 OUTPUT FREQ 1
LIMIT
Output frequency supervision limit adjustable from 0 – 500 Hz (ACH 501) or
0 – 120 Hz (ACH 502), 0.1 Hz step.
3 OUTPUT FREQ 2
FUNC
Refer to Parameter 30.3.1.
4 OUTPUT FREQ 2
LIMIT
A second output frequency supervision limit adjustable from 0 – 500 Hz
(ACH 501) or 0 – 120 Hz (ACH 502), 0.1 Hz step.
5 CURRENT FUNCTION Motor Current supervision. Operates the same as Parameter 30.3.1.
6 CURRENT LIMIT Motor current supervision limit. Setting in actual amps, step is 1% of I
R
,
adjustable from 0 – 2.0 x I
R
.
7 REF1 FUNCTION Reference 1 supervision. Operates the same as Parameter 30.3.1.
8 REF1 LIMIT Reference 1 supervision limit adjustable from 0 – 120 Hz, 0.1 Hz step.
9 REF2 FUNCTION Reference 2 supervision. Operates the same as Parameter 30.3.1.
10 REF2 LIMIT Reference 2 supervision limit adjustable from 0 – 120 Hz, 0.1 Hz step.
11 SUPERVIS
MESSAGES
This parameter controls the display of supervision messages. If set to OFF, the
supervision messages will not display on the digital display.

ABB ACH 501 Specifications

General

Brand	ABB
Model	ACH 501
Category	Controller
Language	English