YASKAWA HV600 Technical Reference page 719

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Wiring Diagram for More than One Bypass
Figure 10.8 shows how to wire more than one connected bypass using serial communications.
Note:
When you install the bypass at the end of the network line, set DIP switch S1 to "ON" to enable the termination resistor. Set DIP switch S1 to
"OFF" on all other bypasses.
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Recommended Cable
Specification
Cable configuration
Gauge
Wire lay
Shields
NEC type
Temperature
Note:
Cable lengths cannot be loner than 152 m (500 ft) at 4800 bps.
◆
Slope and Intercept Conversion
Several parameters are available for monitoring purposes. The available parameters include FREQ OUTPUT (Point
3), SPEED (Point 5), CURRENT (Point 6), TORQUE (Point 7), POWER (Point 8), DRIVE TEMP (Point 9), KWH
(Point 10), and RUN TIME (Point 12). These points can be unbundled for monitoring or used in various global
control strategies.
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Bypass Controlled Feedback
The most typical application is Supervisory Control. The sensor for the control variable (for example, water
temperature) is hard-wired to the bypass and the control device (fan) is modulated using the PI control loop built into
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
R+
R-
PLC
S+
S-
IG
Figure 10.8 Wiring Diagram for More than One Bypass
Table 10.9 APOGEE FLN Cable Specifications
Twisted shielded pair
• Stranded wire: 0.2 mm 2
to 1.0 mm
• Sold wire: 0.2 mm 2 to 1.5 mm 2 (24 AWG to 16 AWG)
Minimum 6 twists per foot
100% foil with drain wire
UL type CMP
-20 °C to +60 °C
10.4 APOGEE FLN (P1) Communications
Bypass
TXRX+
2
S1
3 TXRX-
1
IG5
OFF
Bypass
TXRX+
2
S1
3 TXRX-
1
IG5
OFF
Bypass
2 TXRX+
S1
3 TXRX-
1
IG5
ON
Description
2
(24 AWG to 16 AWG)
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