Parameter listing and descriptions
253
ACH550-01 User's Manual
Group 32: SUPERVISION
This group defines supervision for up to three signals from
Group 01: OPERATING DATA
. Supervision monitors a specified
parameter and energises a relay output if the parameter passes
a defined limit. Use
Group 14: RELAY OUTPUTS
to define the
relay and whether the relay activates when the signal is too low
or too high.
Code Description
Range
3201
SUPERV 1 PARAM
101…178
Selects the first supervised parameter.
• Must be a parameter number from
Group 01: OPERATING DATA
.
• 101…178 – Supervises parameter 0101…0178.
• If the supervised parameter passes a limit, a relay output is
energised.
• The supervision limits are defined in this group.
• The relay outputs are defined in
Group 14: RELAY OUTPUTS
(definition also specifies which supervision limit is monitored).
LO
≤
HI
Operating data supervision using relay outputs, when LO
≤
HI. See the
figure on page
254
.
• Case A = Parameter 1401
RELAY
OUTPUT
1 (or 1402
RELAY
OUTPUT
2,
etc.) value is
SUPRV
1
OVER
or
SUPRV
2
OVER
. Use for monitoring when/
if the supervised signal exceeds a given limit. The relay remains
active until the supervised value drops below the low limit.
• Case B = Parameter 1401
RELAY
OUTPUT
1 (or 1402
RELAY
OUTPUT
2,
etc.) value is
SUPRV
1
UNDER
or
SUPRV
2
UNDER
. Use for monitoring
when/if the supervised signal falls below a given limit. The relay
remains active until the supervised value rises above the high limit.
LO
>
HI
Operating data supervision using relay outputs, when LO>HI. See the
figure on page
254
.
The lowest limit (
HI
3203) is active initially, and remains active until the
supervised parameter goes above the highest limit (
LO
3202), making
that limit the active limit. That limit remains active until the supervised
parameter goes below the lowest limit (
HI
3203), making that limit
active.
• Case A = Parameter 1401
RELAY
OUTPUT
1 (or 1402
RELAY
OUTPUT
2,
etc.) value is
SUPRV
1
OVER
or
SUPRV
2
OVER
. Initially the relay is de-
energised. It is energised whenever the supervised parameter goes
above the active limit.
• Case B = Parameter 1401
RELAY
OUTPUT
1 (or 1402
RELAY
OUTPUT
2,
etc.) value is
SUPRV
1
UNDER
or
SUPRV
2
UNDER
. Initially the relay is
energised. It is de-energised whenever the supervised parameter
goes below the active limit.
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