User’s Manual
35
4.4.10.
R
EGEN
P
OWER
-O
N
/P
RECHARGE
N
OT
C
OMPLETE
These faults indicate that the unit has been powered on in the last ten
seconds. This fault will clear automatically. If this fault does not clear, it
typically indicates that damage to the unit has occurred.
4.4.11.
F
REQUENCY
D
ETECT
F
AILURE
This fault indicates that the unit failed to properly detect whether the AC
source is 50 or 60 Hz. This fault latches until power-down.
4.5.
I
NPUT
/
O
UTPUT
C
ONNECTIONS
All the inputs for the unit are rated for 24VDC. All inputs are common to TB2-4. The
inputs are bidirectional, and can be configured to be sinking or sourcing as the
installation requires. It is recommended that inputs be configured as sinking, as this
is more failsafe.
The outputs are MOSFET optocouplers common to TB2-8, and will show a low
resistance (20
Ω) to this common when activated. When not activated, they will appear
open.
4.5.1.
L
OCAL
I/O
+24V
S
UPPLY
-
TB2-1
&
TB2-5
This pin supplies 24V, a maximum of 100mA, which can be used to drive the
user inputs. +24V is on TB2-1 and 24V Common is on TB2-5.
4.5.2.
E
NABLE
I
NPUT
-
TB2-2
This input enables the unit to regenerate. Faults are reset on a rising edge
of this input. Note that the unit will not regenerate unless this input is active.
The unit will operate in power supply mode regardless of the state of this
input.
4.5.3.
F
AULT
R
ECALL
I
NPUT
-TB2-3
For units with no digital display, the last fault record can be retrieved by
disabling the unit and activating this input.
The last fault code will blink out until the unit is re-enabled.
For units with a digital display, this input has no function.
4.5.4.
I
NPUT
COM
-TB2-4
All user inputs are common to this terminal.
4.5.5.
R
EADY
O
UTPUT
-
TB2-6
This output closes to TB2-8 when the unit is ready to operate. This contact
will open if the system is not enabled, if the system is powered off, or on any
fault condition.
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