21
Typical Control Connections
Shown below are typical interfaces between the TR1 and other
components in an HVAC system. The terminal numbers and the
functions of the terminals are identical on all TR1s. An optional relay
card, not shown, can provide four additional Form C output relays.
The RS-485 connections allow direct communication through the
drives built-in serial communication protocols.
Typical TR1 Wiring
91 (L1)
92 (L2)
93 (L3)
(U) 96
(V) 97
(W) 98
(AUX RELAY) 01
( AUX RELAY) 02
(AUX RELAY) 03
Fault Indication*
240 V AC, 2 A
(PE) 95
(RELAY) 04
(RELAY) 05
Run Indication*
30 V AC, 1 A
(COM A OUT) 39
(A OUT) 42
(A OUT) 45
Output Current Indication*
4 - 20 mA
88 (-)
89 (+)
99 (PE)
Motor
3 Phase
Power
Input
External
DC Bus
Connection
Output Speed Indication*
4 - 20 mA
Switch Mode
Power Supply
24 V DC
200 mA
+
-
(P EIA-485) 68
(N EIA-485) 69
(COM EIA-485) 61
+
-
EIA-485
SW2
SW3
5 V
10 V DC
17 mA
+
-
50 (+10 V OUT)
60 (A IN)
+10 V DC
0 - 10 V DC
Ref. Input*
0 - 10 V DC
Ref. Input*
4 - 20 mA
Ref. Input*
54 (A IN)
55 (COM A IN)
53 (A IN)
12 (+24 V OUT)
13 (+24 V OUT)
SW4
Preset Speed*
Setup Select*
Setup Select*
Reset*
Lockout*
Run/Stop*
Reverse*
Interlock*
16 (D IN)
17 (D IN)
18 (D IN)
19 (D IN)
20 (COM D IN)
27 (D IN)
29 (D IN)
32 (D IN)
33 (D IN)
0 V
EIA-485
Interface
* The operation of all control inputs and outputs is programmable.
*
Typical terminal functions are shown.
