E- Bypass Control Panel Connections (Supplement To Ach550-Uh User's Manual) - ABB ACH550 User Manual

E-Bypass Configurations for ACH550 Drives
E- Bypass Control Panel Connections
(Supplement to ACH550-UH User's Manual)
Control cable requirements for connections to the E-Bypass control panel (X2) are
the same as those described for the ACH550 control panel (X1). Refer to the
ACH550 User's Manual.
Control Panel Connection Specifications
Digital Inputs
(Digital Outputs)
WARNING! Relay coils generate noise
spikes in response to steps in applied
power. To avoid drive damage from such
spikes, all AC relay coils mounted across
control panel inputs require R-C snubbers,
and all DC relay coils mounted across
control panel outputs require diodes – see
figure.
Control Panel Terminals
The following table provides specifications for the E-Bypass's control terminals
Frame Size
Control Connection Specifications
Digital input impedance 1.5 kΩ. Maximum voltage for digital inputs is 30 V.
• Max. contact voltage: 30 V DC, 125 V AC
Relays
• Max. switching current: 8 A, 24 V DC; 0.4 A at 125 V AC
• Max. continuous current: 2 A rms
Maximum Wire Size
2
mm
All 0.12...2.5
Control
Torque
AWG Nm
26...14 0.4
0.47 uF
AC Coil
33 Ohm
Typical R-C
Snubber
+
DC Coil
Diode
-
lb-ft
0.3
Technical Data
45
Control
Panel
Inputs
Control
Panel
Outputs