ABB RCNA-01 Manuel d'utilisateur télécharger pdf (Page 251)

Parameter listing and descriptions 247

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 248.

• 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 248.

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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ABB RCNA-01 Manuel d'utilisateur Page 251

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