9-6 Manual # 42-02-2223
Reference
iBox Field Connections
The majority of field connections to the iBox are made through pluggable terminal strips along
the left edge of the iBox (as you face it). Field connections are control and data connections to
and from equipment external to the iBox. For example, connections through the traveler cable
to car and hoistway equipment or connections to additional machine room equipment like rope
grippers, velocity encoders, governors, etc. In this section, three tables describe connections —
iBox connections, expansion board connections, and iControl terminal connections respec-
tively.
Tach Error Lower Limit This signal represents the lower margin of tach error allowed at
contract speed before a tach fault is generated. Display with
Speed Feedback signal to see the margin. If Speed Feedback
crosses Tach Error Lower Limit the tach fault will be generated.
Please refer to “Tach Error Tripping Threshold Adjustment” on
page 2-50. Please refer to “Tach Error Tripping Threshold Adjust-
ment” on page 4-40.
Tach Error Upper Limit This signal represents the upper margin of tach error allowed at
contract speed before a tach fault is generated. Display with
Speed Feedback signal to see the margin. If Speed Feedback
crosses Tach Error Upper Limit the tach fault will be generated.
Please refer to “Tach Error Tripping Threshold Adjustment” on
page 2-50. Please refer to “Tach Error Tripping Threshold Adjust-
ment” on page 4-40.
Tachometer Signal Raw tachometer signal.
Table 9.3 iBox Field Connections
Source Connection Signal Description
TACH
TS Tach positive signal. Analog. 0 - 30 VDC (15 VDC @ 1000 RPM).
TC Tach common (negative in respect to TS when car moving down)
SHLD Tach shield connection (connect at iBox-end only)
POSITION
DP1+ Positive going, +15V, digital pulse stream from iLand to iLink to iBox (DP1 leads
DP2 when car moves up).
DP1- Negative going, -15V, digital pulse stream from iLand to iLink to iBox.
SHLD Shield connection for twisted-pair DP1+/DP1-
DP2+ Positive going, +15V, digital pulse stream from iLand to iLink to iBox (DP2 leads
DP1 when car moves down)
DP2- Negative going, -15V, digital pulse stream from iLand to iLink to iBox
SHLD Shield connection for twisted-pair DP2+/DP2-
Table 9.2 Test Point Signals
Test Signal Description / Text References
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