Section 2
OM6624CT-3000-5-00
11 May, 2016
2-7
2.3.
6624CT-3000 FRONT VIEW
Figure 2-2 : 6624CT-3000 Front View
2.3.1.
Power
The
Power
indicator is lighted when the AC power is applied to the units and the power
switches on the rear panels are 'ON'. The power indicator on the 6623A-3S may dim if a
large comparator imbalance condition exists. In this case the current source and the 6623A-
3S should be turned off.
2.3.2.
Balance
The
Balance
indicator or meter on the 6623A-3S DC Current Transformer Controller will
be pegged to the left or the right when a fault condition in the servo amplifier of the current
comparator module is detected indicating a comparator imbalance condition may exist or
there is an open circuit at one of the output terminals.
A small offset is a satisfactory indication that a balance condition exits on the DCCT-3000
Transformer Unit.
Note: Do not operate the system if the meter remains pegged off-scale as this may
damage the controller electronics. Turn off the current source and the 6623A-3S and
correct any connection problems or range selection errors.
2.3.3.
3 A Burden
The
3 A Burden
binding post terminals are provided for connection of a suitable reference
shunt. If a shunt is not used a shorting link must be installed for proper operation. The full
scale output is 3 A.
Summary of Contents for 6624CT-3000
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