ABB ACH550-02-645A-4 [257/454] Group 32 supervision
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ABB ACH550-02-645A-4 [257/454] Group 32 supervision

ABB ACH550-02-645A-4 [257/454] Group 32 supervision
Parameter listing and descriptions 253
ACH550-02 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
SUPRV1 OVER or SUPRV2 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
SUPRV1 UNDER or SUPRV2 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
SUPRV1 OVER or SUPRV2 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
SUPRV1 UNDER or SUPRV2 UNDER. Initially the relay is
energised. It is de-energised whenever the supervised parameter
goes below the active limit.

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