ABB ACH550-VCR - Page 138

1-134 ACH550-UH User’s Manual
Parameters
Group 32: SUPERVISION
This group defines supervision for up to three signals from Group 01: OPERATING
DATA. Supervision monitors a specified parameter and energizes 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.
Group 32: Supervision
Code Description Range Resolution Default S
3201 SUPERV 1 PARAM 100…178 1 103 (OUTPUT FREQ)
Selects the first supervised parameter.
• Must be a parameter number from Group 01: OPERATING DATA.
• 100 =
NOT SELECTED – No parameter selected.
• 101…178 – Selects parameter 0101…0178.
• If the supervised parameter passes a limit, a relay output is energized.
• 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.
• 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.
Note: Case LO HI represents a normal hysteresis.
LO HI
Operating data supervision using relay outputs, when
LO>HI.
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-energized. It is energized
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 energized. It is de-energized whenever the supervised parameter goes below the active
limit.
Note: Case LO>HI represents a special hysteresis with two separate supervision limits.
3202 SUPERV 1 LIM LO Depends on selection - 60.0 Hz
Sets the low limit for the first supervised parameter. See 3201
SUPERV 1 PARAM above.
3203 SUPERV 1 LIM HI Depends on selection - 60.0 Hz
Sets the high limit for the first supervised parameter. See 3201 SUPERV 1 PARAM above.
Value of supervised parameter
Case A
0
Energized (1)
0
HI (3203)
LO (3202)
Case B
Energized (1)
t
t
t
LO (3202)
HI (3203)
Value of supervised parameter
Case A
0
Energized (1)
0
Case B
Energized (1)
Active limit
t
t
t